./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/egcd3-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/egcd3-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ef08007570a64191e0df13d14d3e8d62a8022f43f46779ea6f6701a621376be --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:24:31,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:24:31,993 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 06:24:31,997 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:24:31,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:24:32,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:24:32,021 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:24:32,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:24:32,022 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:24:32,023 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:24:32,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:24:32,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:24:32,025 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:24:32,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:24:32,026 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:24:32,027 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:24:32,027 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:24:32,028 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:24:32,028 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:24:32,029 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:24:32,029 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:24:32,030 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:24:32,030 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:24:32,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:24:32,031 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:24:32,032 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:24:32,032 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:24:32,032 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:24:32,033 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:24:32,033 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:24:32,034 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:24:32,034 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:24:32,034 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:24:32,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:24:32,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:24:32,035 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:24:32,035 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:24:32,035 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:24:32,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:24:32,036 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:24:32,036 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:24:32,036 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:24:32,036 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:24:32,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:24:32,037 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef08007570a64191e0df13d14d3e8d62a8022f43f46779ea6f6701a621376be [2023-11-29 06:24:32,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:24:32,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:24:32,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:24:32,270 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:24:32,270 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:24:32,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench/egcd3-ll.c [2023-11-29 06:24:35,055 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:24:35,248 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:24:35,248 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/sv-benchmarks/c/nla-digbench/egcd3-ll.c [2023-11-29 06:24:35,259 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/data/e8c8ef19e/13fceb45529e43afa3f7d3def92dbe04/FLAG249ca3200 [2023-11-29 06:24:35,274 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/data/e8c8ef19e/13fceb45529e43afa3f7d3def92dbe04 [2023-11-29 06:24:35,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:24:35,279 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:24:35,280 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:24:35,280 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:24:35,285 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:24:35,286 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:24:35" (1/1) ... [2023-11-29 06:24:35,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c2bed01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:35, skipping insertion in model container [2023-11-29 06:24:35,287 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:24:35" (1/1) ... [2023-11-29 06:24:35,311 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:24:35,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:24:35,491 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:24:35,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:24:35,528 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:24:35,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:35 WrapperNode [2023-11-29 06:24:35,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:24:35,529 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:24:35,530 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:24:35,530 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:24:35,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:35" (1/1) ... [2023-11-29 06:24:35,544 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:35" (1/1) ... [2023-11-29 06:24:35,569 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 137 [2023-11-29 06:24:35,569 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:24:35,570 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:24:35,570 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:24:35,570 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:24:35,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:35" (1/1) ... [2023-11-29 06:24:35,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:35" (1/1) ... [2023-11-29 06:24:35,584 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:35" (1/1) ... [2023-11-29 06:24:35,598 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 06:24:35,599 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:35" (1/1) ... [2023-11-29 06:24:35,599 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:35" (1/1) ... [2023-11-29 06:24:35,603 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:35" (1/1) ... [2023-11-29 06:24:35,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:35" (1/1) ... [2023-11-29 06:24:35,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:35" (1/1) ... [2023-11-29 06:24:35,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:35" (1/1) ... [2023-11-29 06:24:35,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:24:35,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:24:35,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:24:35,613 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:24:35,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:35" (1/1) ... [2023-11-29 06:24:35,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:24:35,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:35,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:24:35,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:24:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:24:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 06:24:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 06:24:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:24:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:24:35,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:24:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 06:24:35,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 06:24:35,753 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:24:35,755 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:24:36,095 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:24:36,122 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:24:36,122 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-29 06:24:36,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:24:36 BoogieIcfgContainer [2023-11-29 06:24:36,123 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:24:36,126 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:24:36,126 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:24:36,129 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:24:36,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:24:35" (1/3) ... [2023-11-29 06:24:36,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523d34aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:24:36, skipping insertion in model container [2023-11-29 06:24:36,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:35" (2/3) ... [2023-11-29 06:24:36,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523d34aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:24:36, skipping insertion in model container [2023-11-29 06:24:36,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:24:36" (3/3) ... [2023-11-29 06:24:36,132 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd3-ll.c [2023-11-29 06:24:36,146 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:24:36,147 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2023-11-29 06:24:36,205 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:24:36,211 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@48ccb190, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:24:36,212 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-11-29 06:24:36,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 66 states have (on average 1.9242424242424243) internal successors, (127), 116 states have internal predecessors, (127), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 06:24:36,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 06:24:36,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:36,224 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:36,225 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:36,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:36,230 INFO L85 PathProgramCache]: Analyzing trace with hash -556849767, now seen corresponding path program 1 times [2023-11-29 06:24:36,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:36,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846979596] [2023-11-29 06:24:36,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:36,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:36,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:36,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846979596] [2023-11-29 06:24:36,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 06:24:36,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885052689] [2023-11-29 06:24:36,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:36,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:36,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:36,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:36,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:24:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:36,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 06:24:36,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:36,460 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 06:24:36,460 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:36,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885052689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:36,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:36,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:24:36,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024759365] [2023-11-29 06:24:36,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:36,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:24:36,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:36,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:24:36,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:24:36,501 INFO L87 Difference]: Start difference. First operand has 126 states, 66 states have (on average 1.9242424242424243) internal successors, (127), 116 states have internal predecessors, (127), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:24:36,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:36,537 INFO L93 Difference]: Finished difference Result 250 states and 286 transitions. [2023-11-29 06:24:36,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:24:36,540 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2023-11-29 06:24:36,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:36,548 INFO L225 Difference]: With dead ends: 250 [2023-11-29 06:24:36,548 INFO L226 Difference]: Without dead ends: 123 [2023-11-29 06:24:36,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:24:36,556 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:36,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:24:36,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-29 06:24:36,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-11-29 06:24:36,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 65 states have (on average 1.8) internal successors, (117), 114 states have internal predecessors, (117), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 06:24:36,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 129 transitions. [2023-11-29 06:24:36,602 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 129 transitions. Word has length 14 [2023-11-29 06:24:36,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:36,602 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 129 transitions. [2023-11-29 06:24:36,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:24:36,603 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 129 transitions. [2023-11-29 06:24:36,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-29 06:24:36,604 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:36,604 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:36,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:24:36,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 06:24:36,808 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:36,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:36,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1950582316, now seen corresponding path program 1 times [2023-11-29 06:24:36,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:36,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765504330] [2023-11-29 06:24:36,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:36,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:36,824 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:36,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [583319627] [2023-11-29 06:24:36,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:36,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:36,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:36,826 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:36,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:24:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:36,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:24:36,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:36,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:24:36,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:36,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:36,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765504330] [2023-11-29 06:24:36,948 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:36,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583319627] [2023-11-29 06:24:36,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583319627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:36,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:36,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:24:36,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292449870] [2023-11-29 06:24:36,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:36,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:24:36,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:36,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:24:36,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:24:36,951 INFO L87 Difference]: Start difference. First operand 123 states and 129 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:37,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:37,180 INFO L93 Difference]: Finished difference Result 218 states and 230 transitions. [2023-11-29 06:24:37,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:24:37,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2023-11-29 06:24:37,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:37,184 INFO L225 Difference]: With dead ends: 218 [2023-11-29 06:24:37,184 INFO L226 Difference]: Without dead ends: 190 [2023-11-29 06:24:37,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:24:37,186 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 240 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:37,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 310 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:24:37,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-11-29 06:24:37,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 125. [2023-11-29 06:24:37,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 67 states have (on average 1.7761194029850746) internal successors, (119), 116 states have internal predecessors, (119), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 06:24:37,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 131 transitions. [2023-11-29 06:24:37,205 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 131 transitions. Word has length 15 [2023-11-29 06:24:37,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:37,205 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 131 transitions. [2023-11-29 06:24:37,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:37,206 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 131 transitions. [2023-11-29 06:24:37,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 06:24:37,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:37,207 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:37,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:24:37,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:37,408 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:37,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:37,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1111016670, now seen corresponding path program 1 times [2023-11-29 06:24:37,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:37,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904744257] [2023-11-29 06:24:37,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:37,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:37,419 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:37,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1816736481] [2023-11-29 06:24:37,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:37,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:37,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:37,421 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:37,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:24:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:37,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:24:37,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:37,558 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:24:37,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:37,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:37,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904744257] [2023-11-29 06:24:37,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:37,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816736481] [2023-11-29 06:24:37,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816736481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:37,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:37,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:24:37,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216960804] [2023-11-29 06:24:37,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:37,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:24:37,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:37,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:24:37,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:24:37,563 INFO L87 Difference]: Start difference. First operand 125 states and 131 transitions. Second operand has 7 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:37,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:37,734 INFO L93 Difference]: Finished difference Result 197 states and 210 transitions. [2023-11-29 06:24:37,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:24:37,735 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-29 06:24:37,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:37,737 INFO L225 Difference]: With dead ends: 197 [2023-11-29 06:24:37,737 INFO L226 Difference]: Without dead ends: 196 [2023-11-29 06:24:37,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:24:37,739 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 284 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:37,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 367 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:24:37,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-29 06:24:37,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 161. [2023-11-29 06:24:37,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 99 states have (on average 1.8181818181818181) internal successors, (180), 148 states have internal predecessors, (180), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 06:24:37,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 200 transitions. [2023-11-29 06:24:37,757 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 200 transitions. Word has length 18 [2023-11-29 06:24:37,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:37,758 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 200 transitions. [2023-11-29 06:24:37,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:37,758 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 200 transitions. [2023-11-29 06:24:37,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 06:24:37,759 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:37,759 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:37,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:24:37,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-29 06:24:37,964 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:37,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:37,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1111016288, now seen corresponding path program 1 times [2023-11-29 06:24:37,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:37,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706370838] [2023-11-29 06:24:37,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:37,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:37,977 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:37,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059856920] [2023-11-29 06:24:37,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:37,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:37,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:37,979 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:38,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:24:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:38,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:24:38,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:38,059 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:24:38,059 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:38,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:38,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706370838] [2023-11-29 06:24:38,060 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:38,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059856920] [2023-11-29 06:24:38,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059856920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:38,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:38,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:24:38,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844957437] [2023-11-29 06:24:38,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:38,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:24:38,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:38,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:24:38,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:24:38,062 INFO L87 Difference]: Start difference. First operand 161 states and 200 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:38,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:38,128 INFO L93 Difference]: Finished difference Result 197 states and 209 transitions. [2023-11-29 06:24:38,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:24:38,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-29 06:24:38,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:38,131 INFO L225 Difference]: With dead ends: 197 [2023-11-29 06:24:38,131 INFO L226 Difference]: Without dead ends: 193 [2023-11-29 06:24:38,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:24:38,132 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 62 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:38,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 210 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:24:38,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-29 06:24:38,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 164. [2023-11-29 06:24:38,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 102 states have (on average 1.7745098039215685) internal successors, (181), 151 states have internal predecessors, (181), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 06:24:38,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 201 transitions. [2023-11-29 06:24:38,149 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 201 transitions. Word has length 18 [2023-11-29 06:24:38,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:38,149 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 201 transitions. [2023-11-29 06:24:38,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:38,150 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 201 transitions. [2023-11-29 06:24:38,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-29 06:24:38,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:38,151 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:38,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 06:24:38,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:38,356 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:38,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:38,356 INFO L85 PathProgramCache]: Analyzing trace with hash -81778326, now seen corresponding path program 1 times [2023-11-29 06:24:38,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:38,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470090762] [2023-11-29 06:24:38,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:38,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:38,365 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:38,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1692320203] [2023-11-29 06:24:38,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:38,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:38,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:38,367 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:38,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:24:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:38,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:24:38,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:38,493 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:24:38,494 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:38,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:38,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470090762] [2023-11-29 06:24:38,494 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:38,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692320203] [2023-11-29 06:24:38,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692320203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:38,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:38,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:24:38,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123535012] [2023-11-29 06:24:38,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:38,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:24:38,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:38,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:24:38,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:24:38,497 INFO L87 Difference]: Start difference. First operand 164 states and 201 transitions. Second operand has 7 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:38,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:38,641 INFO L93 Difference]: Finished difference Result 193 states and 205 transitions. [2023-11-29 06:24:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:24:38,642 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-29 06:24:38,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:38,643 INFO L225 Difference]: With dead ends: 193 [2023-11-29 06:24:38,643 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 06:24:38,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:24:38,645 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 232 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:38,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 367 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:24:38,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 06:24:38,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 164. [2023-11-29 06:24:38,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 102 states have (on average 1.7647058823529411) internal successors, (180), 151 states have internal predecessors, (180), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 06:24:38,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 200 transitions. [2023-11-29 06:24:38,659 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 200 transitions. Word has length 19 [2023-11-29 06:24:38,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:38,660 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 200 transitions. [2023-11-29 06:24:38,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:38,660 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 200 transitions. [2023-11-29 06:24:38,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 06:24:38,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:38,661 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:38,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 06:24:38,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:38,862 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:38,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:38,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1759839268, now seen corresponding path program 1 times [2023-11-29 06:24:38,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:38,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307363957] [2023-11-29 06:24:38,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:38,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:38,872 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:38,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2099966383] [2023-11-29 06:24:38,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:38,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:38,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:38,874 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:38,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 06:24:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:38,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:24:38,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:39,019 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:24:39,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:39,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:39,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307363957] [2023-11-29 06:24:39,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:39,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099966383] [2023-11-29 06:24:39,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099966383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:39,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:39,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:24:39,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521435593] [2023-11-29 06:24:39,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:39,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:24:39,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:39,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:24:39,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:24:39,022 INFO L87 Difference]: Start difference. First operand 164 states and 200 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:39,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:39,447 INFO L93 Difference]: Finished difference Result 244 states and 263 transitions. [2023-11-29 06:24:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:24:39,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-29 06:24:39,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:39,450 INFO L225 Difference]: With dead ends: 244 [2023-11-29 06:24:39,450 INFO L226 Difference]: Without dead ends: 243 [2023-11-29 06:24:39,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:24:39,465 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 435 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:39,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 393 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:24:39,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-11-29 06:24:39,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 164. [2023-11-29 06:24:39,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 102 states have (on average 1.7549019607843137) internal successors, (179), 151 states have internal predecessors, (179), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 06:24:39,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 199 transitions. [2023-11-29 06:24:39,481 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 199 transitions. Word has length 20 [2023-11-29 06:24:39,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:39,481 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 199 transitions. [2023-11-29 06:24:39,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:39,482 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 199 transitions. [2023-11-29 06:24:39,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 06:24:39,483 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:39,483 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:39,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 06:24:39,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:39,689 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:39,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:39,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1760208674, now seen corresponding path program 1 times [2023-11-29 06:24:39,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:39,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840931840] [2023-11-29 06:24:39,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:39,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:39,699 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:39,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [826646470] [2023-11-29 06:24:39,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:39,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:39,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:39,700 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:39,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 06:24:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:39,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:24:39,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:39,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:24:39,766 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:39,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:39,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840931840] [2023-11-29 06:24:39,767 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:39,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826646470] [2023-11-29 06:24:39,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826646470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:39,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:39,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:24:39,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946412334] [2023-11-29 06:24:39,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:39,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:24:39,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:39,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:24:39,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:24:39,769 INFO L87 Difference]: Start difference. First operand 164 states and 199 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:39,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:39,894 INFO L93 Difference]: Finished difference Result 191 states and 203 transitions. [2023-11-29 06:24:39,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:24:39,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-29 06:24:39,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:39,896 INFO L225 Difference]: With dead ends: 191 [2023-11-29 06:24:39,896 INFO L226 Difference]: Without dead ends: 190 [2023-11-29 06:24:39,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:24:39,897 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 57 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:39,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 396 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:24:39,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-11-29 06:24:39,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 165. [2023-11-29 06:24:39,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 103 states have (on average 1.7475728155339805) internal successors, (180), 152 states have internal predecessors, (180), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 06:24:39,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 200 transitions. [2023-11-29 06:24:39,910 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 200 transitions. Word has length 20 [2023-11-29 06:24:39,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:39,910 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 200 transitions. [2023-11-29 06:24:39,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:39,910 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 200 transitions. [2023-11-29 06:24:39,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 06:24:39,911 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:39,911 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:39,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 06:24:40,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:40,112 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:40,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:40,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1279557460, now seen corresponding path program 1 times [2023-11-29 06:24:40,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:40,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394698651] [2023-11-29 06:24:40,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:40,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:40,124 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:40,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [119753103] [2023-11-29 06:24:40,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:40,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:40,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:40,126 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:40,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 06:24:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:40,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:24:40,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:40,220 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:24:40,220 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:40,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:40,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394698651] [2023-11-29 06:24:40,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:40,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119753103] [2023-11-29 06:24:40,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119753103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:40,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:40,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:24:40,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881019193] [2023-11-29 06:24:40,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:40,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:24:40,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:40,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:24:40,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:24:40,223 INFO L87 Difference]: Start difference. First operand 165 states and 200 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:40,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:40,317 INFO L93 Difference]: Finished difference Result 188 states and 200 transitions. [2023-11-29 06:24:40,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:24:40,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-29 06:24:40,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:40,320 INFO L225 Difference]: With dead ends: 188 [2023-11-29 06:24:40,320 INFO L226 Difference]: Without dead ends: 187 [2023-11-29 06:24:40,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:24:40,321 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 210 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:40,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 176 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:24:40,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-29 06:24:40,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 165. [2023-11-29 06:24:40,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 103 states have (on average 1.7378640776699028) internal successors, (179), 152 states have internal predecessors, (179), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 06:24:40,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 199 transitions. [2023-11-29 06:24:40,334 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 199 transitions. Word has length 21 [2023-11-29 06:24:40,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:40,334 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 199 transitions. [2023-11-29 06:24:40,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:40,334 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 199 transitions. [2023-11-29 06:24:40,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 06:24:40,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:40,335 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:40,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 06:24:40,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:40,538 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:40,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:40,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1268105802, now seen corresponding path program 1 times [2023-11-29 06:24:40,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:40,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485254767] [2023-11-29 06:24:40,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:40,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:40,547 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:40,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1985196467] [2023-11-29 06:24:40,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:40,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:40,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:40,548 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:40,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 06:24:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:40,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:24:40,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:40,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:24:40,629 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:40,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:40,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485254767] [2023-11-29 06:24:40,630 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:40,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985196467] [2023-11-29 06:24:40,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985196467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:40,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:40,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:24:40,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682365815] [2023-11-29 06:24:40,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:40,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:24:40,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:40,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:24:40,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:24:40,632 INFO L87 Difference]: Start difference. First operand 165 states and 199 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:40,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:40,746 INFO L93 Difference]: Finished difference Result 189 states and 201 transitions. [2023-11-29 06:24:40,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:24:40,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-29 06:24:40,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:40,749 INFO L225 Difference]: With dead ends: 189 [2023-11-29 06:24:40,750 INFO L226 Difference]: Without dead ends: 188 [2023-11-29 06:24:40,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:24:40,751 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 57 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:40,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 275 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:24:40,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-29 06:24:40,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 166. [2023-11-29 06:24:40,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 104 states have (on average 1.7307692307692308) internal successors, (180), 153 states have internal predecessors, (180), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 06:24:40,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2023-11-29 06:24:40,761 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 21 [2023-11-29 06:24:40,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:40,762 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2023-11-29 06:24:40,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:40,762 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2023-11-29 06:24:40,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 06:24:40,763 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:40,763 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:40,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 06:24:40,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:40,968 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:40,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:40,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1011575514, now seen corresponding path program 1 times [2023-11-29 06:24:40,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:40,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255156022] [2023-11-29 06:24:40,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:40,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:40,977 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:40,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [221268946] [2023-11-29 06:24:40,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:40,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:40,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:40,978 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:40,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 06:24:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:41,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 06:24:41,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:24:41,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:41,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:41,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255156022] [2023-11-29 06:24:41,167 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:41,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221268946] [2023-11-29 06:24:41,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221268946] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:41,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:41,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:24:41,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54451483] [2023-11-29 06:24:41,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:41,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:24:41,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:41,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:24:41,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:24:41,169 INFO L87 Difference]: Start difference. First operand 166 states and 200 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:41,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:41,634 INFO L93 Difference]: Finished difference Result 242 states and 261 transitions. [2023-11-29 06:24:41,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:24:41,634 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-29 06:24:41,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:41,636 INFO L225 Difference]: With dead ends: 242 [2023-11-29 06:24:41,636 INFO L226 Difference]: Without dead ends: 241 [2023-11-29 06:24:41,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:24:41,637 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 366 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:41,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 359 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:24:41,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-11-29 06:24:41,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 166. [2023-11-29 06:24:41,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 104 states have (on average 1.7211538461538463) internal successors, (179), 153 states have internal predecessors, (179), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 06:24:41,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 199 transitions. [2023-11-29 06:24:41,647 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 199 transitions. Word has length 22 [2023-11-29 06:24:41,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:41,647 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 199 transitions. [2023-11-29 06:24:41,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:41,647 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 199 transitions. [2023-11-29 06:24:41,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 06:24:41,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:41,648 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:41,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 06:24:41,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 06:24:41,852 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:41,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:41,852 INFO L85 PathProgramCache]: Analyzing trace with hash -656574044, now seen corresponding path program 1 times [2023-11-29 06:24:41,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:41,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527703868] [2023-11-29 06:24:41,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:41,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:41,859 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:41,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [998258647] [2023-11-29 06:24:41,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:41,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:41,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:41,861 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:41,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 06:24:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:41,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:24:41,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:41,933 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:24:41,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:41,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:41,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527703868] [2023-11-29 06:24:41,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:41,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998258647] [2023-11-29 06:24:41,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998258647] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:41,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:41,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:24:41,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041143653] [2023-11-29 06:24:41,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:41,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:24:41,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:41,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:24:41,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:24:41,935 INFO L87 Difference]: Start difference. First operand 166 states and 199 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:42,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:42,070 INFO L93 Difference]: Finished difference Result 264 states and 283 transitions. [2023-11-29 06:24:42,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:24:42,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-29 06:24:42,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:42,073 INFO L225 Difference]: With dead ends: 264 [2023-11-29 06:24:42,073 INFO L226 Difference]: Without dead ends: 263 [2023-11-29 06:24:42,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:24:42,074 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 125 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:42,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 319 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:24:42,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-11-29 06:24:42,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 174. [2023-11-29 06:24:42,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 112 states have (on average 1.6785714285714286) internal successors, (188), 161 states have internal predecessors, (188), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 06:24:42,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 208 transitions. [2023-11-29 06:24:42,086 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 208 transitions. Word has length 22 [2023-11-29 06:24:42,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:42,087 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 208 transitions. [2023-11-29 06:24:42,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:42,087 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 208 transitions. [2023-11-29 06:24:42,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 06:24:42,088 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:42,088 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:42,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 06:24:42,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 06:24:42,293 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:42,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:42,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1294069778, now seen corresponding path program 1 times [2023-11-29 06:24:42,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:42,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039651363] [2023-11-29 06:24:42,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:42,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:42,302 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:42,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [982644876] [2023-11-29 06:24:42,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:42,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:42,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:42,304 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:42,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 06:24:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:42,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:24:42,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:24:42,373 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:42,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:42,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039651363] [2023-11-29 06:24:42,373 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:42,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982644876] [2023-11-29 06:24:42,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982644876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:42,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:42,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:24:42,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584277571] [2023-11-29 06:24:42,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:42,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:24:42,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:42,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:24:42,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:24:42,375 INFO L87 Difference]: Start difference. First operand 174 states and 208 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:42,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:42,463 INFO L93 Difference]: Finished difference Result 200 states and 213 transitions. [2023-11-29 06:24:42,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:24:42,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2023-11-29 06:24:42,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:42,465 INFO L225 Difference]: With dead ends: 200 [2023-11-29 06:24:42,465 INFO L226 Difference]: Without dead ends: 199 [2023-11-29 06:24:42,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:24:42,466 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 57 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:42,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 310 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:24:42,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-29 06:24:42,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 174. [2023-11-29 06:24:42,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 112 states have (on average 1.6696428571428572) internal successors, (187), 161 states have internal predecessors, (187), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 06:24:42,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 207 transitions. [2023-11-29 06:24:42,475 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 207 transitions. Word has length 23 [2023-11-29 06:24:42,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:42,475 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 207 transitions. [2023-11-29 06:24:42,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:42,476 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 207 transitions. [2023-11-29 06:24:42,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 06:24:42,476 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:42,476 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:42,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 06:24:42,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 06:24:42,680 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:42,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:42,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1121041272, now seen corresponding path program 1 times [2023-11-29 06:24:42,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:42,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727032651] [2023-11-29 06:24:42,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:42,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:42,688 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:42,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1776377853] [2023-11-29 06:24:42,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:42,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:42,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:42,690 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:42,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 06:24:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:42,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:24:42,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:42,767 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:24:42,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:42,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:42,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727032651] [2023-11-29 06:24:42,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:42,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776377853] [2023-11-29 06:24:42,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776377853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:42,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:42,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:24:42,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289206992] [2023-11-29 06:24:42,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:42,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:24:42,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:42,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:24:42,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:24:42,769 INFO L87 Difference]: Start difference. First operand 174 states and 207 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:42,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:42,898 INFO L93 Difference]: Finished difference Result 262 states and 280 transitions. [2023-11-29 06:24:42,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:24:42,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2023-11-29 06:24:42,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:42,900 INFO L225 Difference]: With dead ends: 262 [2023-11-29 06:24:42,901 INFO L226 Difference]: Without dead ends: 261 [2023-11-29 06:24:42,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:24:42,902 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 121 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:42,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 319 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:24:42,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-11-29 06:24:42,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 175. [2023-11-29 06:24:42,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 113 states have (on average 1.663716814159292) internal successors, (188), 162 states have internal predecessors, (188), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 06:24:42,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 208 transitions. [2023-11-29 06:24:42,912 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 208 transitions. Word has length 23 [2023-11-29 06:24:42,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:42,912 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 208 transitions. [2023-11-29 06:24:42,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:42,912 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 208 transitions. [2023-11-29 06:24:42,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 06:24:42,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:42,913 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:42,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 06:24:43,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 06:24:43,113 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:43,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:43,114 INFO L85 PathProgramCache]: Analyzing trace with hash 392541222, now seen corresponding path program 1 times [2023-11-29 06:24:43,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:43,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126152797] [2023-11-29 06:24:43,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:43,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:43,121 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:43,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1506824337] [2023-11-29 06:24:43,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:43,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:43,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:43,123 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:43,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 06:24:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:43,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:24:43,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:43,197 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:24:43,197 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:43,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:43,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126152797] [2023-11-29 06:24:43,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:43,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506824337] [2023-11-29 06:24:43,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506824337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:43,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:43,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:24:43,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735936778] [2023-11-29 06:24:43,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:43,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:24:43,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:43,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:24:43,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:24:43,200 INFO L87 Difference]: Start difference. First operand 175 states and 208 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:43,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:43,324 INFO L93 Difference]: Finished difference Result 203 states and 216 transitions. [2023-11-29 06:24:43,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:24:43,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-11-29 06:24:43,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:43,326 INFO L225 Difference]: With dead ends: 203 [2023-11-29 06:24:43,326 INFO L226 Difference]: Without dead ends: 202 [2023-11-29 06:24:43,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:24:43,327 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 58 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:43,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 343 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:24:43,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-11-29 06:24:43,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 178. [2023-11-29 06:24:43,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 116 states have (on average 1.6637931034482758) internal successors, (193), 165 states have internal predecessors, (193), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 06:24:43,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 213 transitions. [2023-11-29 06:24:43,336 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 213 transitions. Word has length 24 [2023-11-29 06:24:43,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:43,336 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 213 transitions. [2023-11-29 06:24:43,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:43,337 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 213 transitions. [2023-11-29 06:24:43,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 06:24:43,337 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:43,337 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:43,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 06:24:43,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 06:24:43,540 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:43,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:43,540 INFO L85 PathProgramCache]: Analyzing trace with hash -716123846, now seen corresponding path program 1 times [2023-11-29 06:24:43,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:43,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060068627] [2023-11-29 06:24:43,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:43,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:43,547 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:43,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908278312] [2023-11-29 06:24:43,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:43,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:43,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:43,548 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:43,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 06:24:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:43,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:24:43,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:43,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:24:43,629 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:43,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:43,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060068627] [2023-11-29 06:24:43,630 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:43,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908278312] [2023-11-29 06:24:43,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908278312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:43,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:43,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:24:43,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841271819] [2023-11-29 06:24:43,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:43,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:24:43,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:43,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:24:43,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:24:43,631 INFO L87 Difference]: Start difference. First operand 178 states and 213 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:43,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:43,748 INFO L93 Difference]: Finished difference Result 255 states and 275 transitions. [2023-11-29 06:24:43,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:24:43,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2023-11-29 06:24:43,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:43,750 INFO L225 Difference]: With dead ends: 255 [2023-11-29 06:24:43,750 INFO L226 Difference]: Without dead ends: 252 [2023-11-29 06:24:43,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:24:43,752 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 157 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:43,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 341 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:24:43,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-29 06:24:43,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 210. [2023-11-29 06:24:43,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 144 states have (on average 1.6388888888888888) internal successors, (236), 193 states have internal predecessors, (236), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 06:24:43,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 264 transitions. [2023-11-29 06:24:43,768 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 264 transitions. Word has length 25 [2023-11-29 06:24:43,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:43,769 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 264 transitions. [2023-11-29 06:24:43,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:43,769 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 264 transitions. [2023-11-29 06:24:43,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 06:24:43,770 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:43,770 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:43,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-29 06:24:43,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 06:24:43,970 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:43,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:43,971 INFO L85 PathProgramCache]: Analyzing trace with hash -942893048, now seen corresponding path program 1 times [2023-11-29 06:24:43,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:43,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162094738] [2023-11-29 06:24:43,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:43,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:43,979 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:43,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [709396324] [2023-11-29 06:24:43,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:43,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:43,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:43,980 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:43,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 06:24:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:44,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:24:44,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:44,073 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:24:44,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:24:44,155 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:24:44,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:44,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162094738] [2023-11-29 06:24:44,156 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:44,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709396324] [2023-11-29 06:24:44,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709396324] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:24:44,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:24:44,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2023-11-29 06:24:44,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16447609] [2023-11-29 06:24:44,157 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:24:44,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:24:44,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:44,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:24:44,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:24:44,158 INFO L87 Difference]: Start difference. First operand 210 states and 264 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:24:45,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:45,242 INFO L93 Difference]: Finished difference Result 497 states and 572 transitions. [2023-11-29 06:24:45,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:24:45,243 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2023-11-29 06:24:45,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:45,246 INFO L225 Difference]: With dead ends: 497 [2023-11-29 06:24:45,246 INFO L226 Difference]: Without dead ends: 469 [2023-11-29 06:24:45,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:24:45,247 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 579 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:45,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 543 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:24:45,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-29 06:24:45,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 272. [2023-11-29 06:24:45,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 202 states have (on average 1.698019801980198) internal successors, (343), 251 states have internal predecessors, (343), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 06:24:45,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 379 transitions. [2023-11-29 06:24:45,270 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 379 transitions. Word has length 28 [2023-11-29 06:24:45,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:45,271 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 379 transitions. [2023-11-29 06:24:45,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:24:45,271 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 379 transitions. [2023-11-29 06:24:45,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 06:24:45,272 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:45,272 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:45,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 06:24:45,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 06:24:45,473 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:45,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:45,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1379309403, now seen corresponding path program 1 times [2023-11-29 06:24:45,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:45,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076837685] [2023-11-29 06:24:45,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:45,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:45,481 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:45,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1313324248] [2023-11-29 06:24:45,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:45,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:45,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:45,483 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:45,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 06:24:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:45,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:24:45,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:45,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:24:45,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:45,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:45,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076837685] [2023-11-29 06:24:45,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:45,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313324248] [2023-11-29 06:24:45,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313324248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:45,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:45,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:24:45,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228457015] [2023-11-29 06:24:45,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:45,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:24:45,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:45,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:24:45,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:24:45,615 INFO L87 Difference]: Start difference. First operand 272 states and 379 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:24:45,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:45,889 INFO L93 Difference]: Finished difference Result 296 states and 381 transitions. [2023-11-29 06:24:45,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:24:45,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-11-29 06:24:45,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:45,892 INFO L225 Difference]: With dead ends: 296 [2023-11-29 06:24:45,892 INFO L226 Difference]: Without dead ends: 295 [2023-11-29 06:24:45,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:24:45,893 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 213 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:45,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 342 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:24:45,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-11-29 06:24:45,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 272. [2023-11-29 06:24:45,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 202 states have (on average 1.688118811881188) internal successors, (341), 251 states have internal predecessors, (341), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 06:24:45,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 377 transitions. [2023-11-29 06:24:45,914 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 377 transitions. Word has length 31 [2023-11-29 06:24:45,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:45,915 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 377 transitions. [2023-11-29 06:24:45,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:24:45,915 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 377 transitions. [2023-11-29 06:24:45,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 06:24:45,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:45,916 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:45,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 06:24:46,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 06:24:46,120 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:46,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:46,120 INFO L85 PathProgramCache]: Analyzing trace with hash -191081374, now seen corresponding path program 1 times [2023-11-29 06:24:46,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:46,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43950934] [2023-11-29 06:24:46,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:46,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:46,128 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:46,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [987919530] [2023-11-29 06:24:46,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:46,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:46,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:46,130 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:46,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 06:24:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:46,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:24:46,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:46,245 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:24:46,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:46,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:46,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43950934] [2023-11-29 06:24:46,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:46,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987919530] [2023-11-29 06:24:46,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987919530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:46,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:46,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:24:46,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402161035] [2023-11-29 06:24:46,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:46,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:24:46,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:46,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:24:46,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:24:46,248 INFO L87 Difference]: Start difference. First operand 272 states and 377 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:24:46,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:46,642 INFO L93 Difference]: Finished difference Result 295 states and 379 transitions. [2023-11-29 06:24:46,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:24:46,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2023-11-29 06:24:46,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:46,644 INFO L225 Difference]: With dead ends: 295 [2023-11-29 06:24:46,644 INFO L226 Difference]: Without dead ends: 294 [2023-11-29 06:24:46,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:24:46,645 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 207 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:46,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 174 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:24:46,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-11-29 06:24:46,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 272. [2023-11-29 06:24:46,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 202 states have (on average 1.6782178217821782) internal successors, (339), 251 states have internal predecessors, (339), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 06:24:46,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 375 transitions. [2023-11-29 06:24:46,665 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 375 transitions. Word has length 32 [2023-11-29 06:24:46,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:46,666 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 375 transitions. [2023-11-29 06:24:46,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:24:46,666 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 375 transitions. [2023-11-29 06:24:46,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 06:24:46,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:46,667 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:46,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 06:24:46,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 06:24:46,868 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:46,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:46,868 INFO L85 PathProgramCache]: Analyzing trace with hash -641954874, now seen corresponding path program 1 times [2023-11-29 06:24:46,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:46,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861315081] [2023-11-29 06:24:46,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:46,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:46,876 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:46,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [457975029] [2023-11-29 06:24:46,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:46,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:46,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:46,878 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:46,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 06:24:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:46,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:24:46,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:47,133 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:24:47,134 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:24:47,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:47,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861315081] [2023-11-29 06:24:47,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:47,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457975029] [2023-11-29 06:24:47,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457975029] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:24:47,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:24:47,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:24:47,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874170065] [2023-11-29 06:24:47,637 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:24:47,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:24:47,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:47,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:24:47,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:24:47,639 INFO L87 Difference]: Start difference. First operand 272 states and 375 transitions. Second operand has 12 states, 10 states have (on average 2.7) internal successors, (27), 11 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:24:49,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:49,492 INFO L93 Difference]: Finished difference Result 388 states and 472 transitions. [2023-11-29 06:24:49,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:24:49,492 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.7) internal successors, (27), 11 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2023-11-29 06:24:49,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:49,495 INFO L225 Difference]: With dead ends: 388 [2023-11-29 06:24:49,496 INFO L226 Difference]: Without dead ends: 387 [2023-11-29 06:24:49,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=165, Invalid=591, Unknown=0, NotChecked=0, Total=756 [2023-11-29 06:24:49,497 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 465 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:49,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 617 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:24:49,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-11-29 06:24:49,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 312. [2023-11-29 06:24:49,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 238 states have (on average 1.7016806722689075) internal successors, (405), 287 states have internal predecessors, (405), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:24:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 449 transitions. [2023-11-29 06:24:49,516 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 449 transitions. Word has length 31 [2023-11-29 06:24:49,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:49,516 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 449 transitions. [2023-11-29 06:24:49,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.7) internal successors, (27), 11 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:24:49,516 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 449 transitions. [2023-11-29 06:24:49,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 06:24:49,517 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:49,517 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:49,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-29 06:24:49,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:49,717 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:49,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:49,718 INFO L85 PathProgramCache]: Analyzing trace with hash -641954492, now seen corresponding path program 1 times [2023-11-29 06:24:49,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:49,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882315809] [2023-11-29 06:24:49,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:49,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:49,725 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:49,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [655565611] [2023-11-29 06:24:49,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:49,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:49,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:49,726 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:49,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 06:24:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:49,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:24:49,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:49,799 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:24:49,799 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:49,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:49,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882315809] [2023-11-29 06:24:49,800 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:49,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655565611] [2023-11-29 06:24:49,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655565611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:49,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:49,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:24:49,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146860041] [2023-11-29 06:24:49,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:49,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:24:49,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:49,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:24:49,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:24:49,802 INFO L87 Difference]: Start difference. First operand 312 states and 449 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:49,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:49,935 INFO L93 Difference]: Finished difference Result 550 states and 720 transitions. [2023-11-29 06:24:49,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:24:49,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2023-11-29 06:24:49,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:49,938 INFO L225 Difference]: With dead ends: 550 [2023-11-29 06:24:49,938 INFO L226 Difference]: Without dead ends: 373 [2023-11-29 06:24:49,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:24:49,940 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 211 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:49,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 506 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:24:49,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-29 06:24:49,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 252. [2023-11-29 06:24:49,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 182 states have (on average 1.6428571428571428) internal successors, (299), 231 states have internal predecessors, (299), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 06:24:49,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 335 transitions. [2023-11-29 06:24:49,963 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 335 transitions. Word has length 31 [2023-11-29 06:24:49,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:49,963 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 335 transitions. [2023-11-29 06:24:49,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:24:49,964 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 335 transitions. [2023-11-29 06:24:49,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 06:24:49,964 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:49,964 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:49,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 06:24:50,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:50,165 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:50,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:50,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1628555203, now seen corresponding path program 1 times [2023-11-29 06:24:50,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:50,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163429710] [2023-11-29 06:24:50,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:50,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:50,172 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:50,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1344850250] [2023-11-29 06:24:50,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:50,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:50,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:50,174 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:50,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 06:24:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:50,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 06:24:50,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:50,459 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:24:50,459 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:50,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:50,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163429710] [2023-11-29 06:24:50,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:50,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344850250] [2023-11-29 06:24:50,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344850250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:50,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:50,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:24:50,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063612648] [2023-11-29 06:24:50,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:50,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:24:50,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:50,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:24:50,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:24:50,462 INFO L87 Difference]: Start difference. First operand 252 states and 335 transitions. Second operand has 9 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:24:52,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:52,147 INFO L93 Difference]: Finished difference Result 285 states and 339 transitions. [2023-11-29 06:24:52,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:24:52,148 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2023-11-29 06:24:52,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:52,150 INFO L225 Difference]: With dead ends: 285 [2023-11-29 06:24:52,150 INFO L226 Difference]: Without dead ends: 284 [2023-11-29 06:24:52,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:24:52,151 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 365 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:52,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 273 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:24:52,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-29 06:24:52,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 252. [2023-11-29 06:24:52,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 182 states have (on average 1.6318681318681318) internal successors, (297), 231 states have internal predecessors, (297), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 06:24:52,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 333 transitions. [2023-11-29 06:24:52,167 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 333 transitions. Word has length 33 [2023-11-29 06:24:52,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:52,167 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 333 transitions. [2023-11-29 06:24:52,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:24:52,167 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 333 transitions. [2023-11-29 06:24:52,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 06:24:52,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:52,168 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:52,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-29 06:24:52,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:52,368 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:52,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:52,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1574235462, now seen corresponding path program 1 times [2023-11-29 06:24:52,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:52,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154383989] [2023-11-29 06:24:52,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:52,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:52,374 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:52,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1128545202] [2023-11-29 06:24:52,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:52,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:52,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:52,376 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:52,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 06:24:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:52,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:24:52,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:52,645 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:24:52,645 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:24:53,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:53,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154383989] [2023-11-29 06:24:53,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:53,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128545202] [2023-11-29 06:24:53,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128545202] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:24:53,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:24:53,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:24:53,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487452074] [2023-11-29 06:24:53,966 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:24:53,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:24:53,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:53,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:24:53,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:24:53,967 INFO L87 Difference]: Start difference. First operand 252 states and 333 transitions. Second operand has 12 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:24:56,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:56,049 INFO L93 Difference]: Finished difference Result 320 states and 346 transitions. [2023-11-29 06:24:56,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:24:56,049 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2023-11-29 06:24:56,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:56,051 INFO L225 Difference]: With dead ends: 320 [2023-11-29 06:24:56,051 INFO L226 Difference]: Without dead ends: 319 [2023-11-29 06:24:56,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=165, Invalid=591, Unknown=0, NotChecked=0, Total=756 [2023-11-29 06:24:56,053 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 710 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:56,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 526 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:24:56,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-11-29 06:24:56,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 252. [2023-11-29 06:24:56,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 182 states have (on average 1.6263736263736264) internal successors, (296), 231 states have internal predecessors, (296), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 06:24:56,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 332 transitions. [2023-11-29 06:24:56,070 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 332 transitions. Word has length 32 [2023-11-29 06:24:56,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:56,071 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 332 transitions. [2023-11-29 06:24:56,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:24:56,071 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 332 transitions. [2023-11-29 06:24:56,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 06:24:56,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:56,071 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:56,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 06:24:56,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:56,272 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:56,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:56,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1054396356, now seen corresponding path program 1 times [2023-11-29 06:24:56,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:56,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009196272] [2023-11-29 06:24:56,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:56,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:56,279 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:56,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1015680597] [2023-11-29 06:24:56,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:56,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:56,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:56,280 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:56,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 06:24:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:56,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 06:24:56,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:56,762 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:24:56,762 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:24:56,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:56,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009196272] [2023-11-29 06:24:56,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:56,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015680597] [2023-11-29 06:24:56,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015680597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:24:56,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:24:56,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:24:56,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864997114] [2023-11-29 06:24:56,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:24:56,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:24:56,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:56,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:24:56,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:24:56,765 INFO L87 Difference]: Start difference. First operand 252 states and 332 transitions. Second operand has 10 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:24:59,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:24:59,449 INFO L93 Difference]: Finished difference Result 295 states and 349 transitions. [2023-11-29 06:24:59,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:24:59,450 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2023-11-29 06:24:59,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:24:59,451 INFO L225 Difference]: With dead ends: 295 [2023-11-29 06:24:59,451 INFO L226 Difference]: Without dead ends: 294 [2023-11-29 06:24:59,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:24:59,452 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 340 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:24:59,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 369 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 06:24:59,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-11-29 06:24:59,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 252. [2023-11-29 06:24:59,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 182 states have (on average 1.6153846153846154) internal successors, (294), 231 states have internal predecessors, (294), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 06:24:59,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 330 transitions. [2023-11-29 06:24:59,466 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 330 transitions. Word has length 34 [2023-11-29 06:24:59,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:24:59,466 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 330 transitions. [2023-11-29 06:24:59,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:24:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 330 transitions. [2023-11-29 06:24:59,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 06:24:59,467 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:24:59,467 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:24:59,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 06:24:59,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:59,668 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:24:59,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:24:59,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1556659144, now seen corresponding path program 1 times [2023-11-29 06:24:59,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:24:59,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656560725] [2023-11-29 06:24:59,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:59,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:24:59,675 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:24:59,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1049892254] [2023-11-29 06:24:59,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:24:59,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:24:59,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:24:59,677 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:24:59,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 06:24:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:24:59,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:24:59,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:24:59,831 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:24:59,831 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:24:59,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:24:59,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656560725] [2023-11-29 06:24:59,937 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:24:59,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049892254] [2023-11-29 06:24:59,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049892254] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:24:59,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:24:59,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:24:59,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372035592] [2023-11-29 06:24:59,937 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:24:59,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:24:59,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:24:59,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:24:59,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:24:59,939 INFO L87 Difference]: Start difference. First operand 252 states and 330 transitions. Second operand has 8 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:25:01,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:01,126 INFO L93 Difference]: Finished difference Result 367 states and 435 transitions. [2023-11-29 06:25:01,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:25:01,126 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2023-11-29 06:25:01,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:01,128 INFO L225 Difference]: With dead ends: 367 [2023-11-29 06:25:01,128 INFO L226 Difference]: Without dead ends: 365 [2023-11-29 06:25:01,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:25:01,129 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 421 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:01,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 410 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:25:01,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-11-29 06:25:01,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 294. [2023-11-29 06:25:01,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 220 states have (on average 1.6454545454545455) internal successors, (362), 269 states have internal predecessors, (362), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:25:01,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 406 transitions. [2023-11-29 06:25:01,147 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 406 transitions. Word has length 33 [2023-11-29 06:25:01,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:01,148 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 406 transitions. [2023-11-29 06:25:01,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:25:01,148 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 406 transitions. [2023-11-29 06:25:01,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 06:25:01,148 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:01,148 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:01,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 06:25:01,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:01,349 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:25:01,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:01,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1011793288, now seen corresponding path program 1 times [2023-11-29 06:25:01,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:01,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015895521] [2023-11-29 06:25:01,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:01,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:01,355 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:01,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [886349889] [2023-11-29 06:25:01,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:01,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:01,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:01,357 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:01,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 06:25:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:01,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:25:01,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:01,512 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:25:01,512 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:01,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:01,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015895521] [2023-11-29 06:25:01,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:01,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886349889] [2023-11-29 06:25:01,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886349889] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:01,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:01,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:25:01,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574542245] [2023-11-29 06:25:01,911 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:01,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:25:01,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:01,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:25:01,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:25:01,912 INFO L87 Difference]: Start difference. First operand 294 states and 406 transitions. Second operand has 8 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:25:03,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:03,046 INFO L93 Difference]: Finished difference Result 367 states and 432 transitions. [2023-11-29 06:25:03,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:25:03,047 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2023-11-29 06:25:03,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:03,048 INFO L225 Difference]: With dead ends: 367 [2023-11-29 06:25:03,048 INFO L226 Difference]: Without dead ends: 365 [2023-11-29 06:25:03,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:25:03,049 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 325 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:03,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 583 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:25:03,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-11-29 06:25:03,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 295. [2023-11-29 06:25:03,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 221 states have (on average 1.6334841628959276) internal successors, (361), 270 states have internal predecessors, (361), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:25:03,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 405 transitions. [2023-11-29 06:25:03,082 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 405 transitions. Word has length 34 [2023-11-29 06:25:03,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:03,083 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 405 transitions. [2023-11-29 06:25:03,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:25:03,083 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 405 transitions. [2023-11-29 06:25:03,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 06:25:03,083 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:03,083 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:03,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 06:25:03,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 06:25:03,284 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:25:03,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:03,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1300820938, now seen corresponding path program 1 times [2023-11-29 06:25:03,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:03,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403678966] [2023-11-29 06:25:03,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:03,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:03,291 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:03,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1681828743] [2023-11-29 06:25:03,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:03,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:03,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:03,293 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:03,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 06:25:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:03,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:25:03,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:03,573 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:25:03,574 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:05,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:05,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403678966] [2023-11-29 06:25:05,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:05,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681828743] [2023-11-29 06:25:05,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681828743] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:05,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:05,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:25:05,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273010185] [2023-11-29 06:25:05,623 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:05,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:25:05,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:05,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:25:05,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:25:05,625 INFO L87 Difference]: Start difference. First operand 295 states and 405 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:25:07,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:07,950 INFO L93 Difference]: Finished difference Result 362 states and 422 transitions. [2023-11-29 06:25:07,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:25:07,950 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2023-11-29 06:25:07,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:07,952 INFO L225 Difference]: With dead ends: 362 [2023-11-29 06:25:07,952 INFO L226 Difference]: Without dead ends: 361 [2023-11-29 06:25:07,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2023-11-29 06:25:07,954 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 472 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:07,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 567 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 06:25:07,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-29 06:25:07,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 295. [2023-11-29 06:25:07,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 221 states have (on average 1.6289592760180995) internal successors, (360), 270 states have internal predecessors, (360), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:25:07,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 404 transitions. [2023-11-29 06:25:07,991 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 404 transitions. Word has length 35 [2023-11-29 06:25:07,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:07,992 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 404 transitions. [2023-11-29 06:25:07,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:25:07,992 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 404 transitions. [2023-11-29 06:25:07,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 06:25:07,992 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:07,993 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:07,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 06:25:08,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 06:25:08,193 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:25:08,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:08,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1670743498, now seen corresponding path program 1 times [2023-11-29 06:25:08,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:08,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323125104] [2023-11-29 06:25:08,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:08,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:08,199 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:08,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [995701324] [2023-11-29 06:25:08,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:08,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:08,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:08,200 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:08,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 06:25:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:08,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:25:08,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:08,327 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:25:08,327 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:08,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:08,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323125104] [2023-11-29 06:25:08,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:08,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995701324] [2023-11-29 06:25:08,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995701324] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:08,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:08,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:25:08,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222657344] [2023-11-29 06:25:08,736 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:08,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:25:08,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:08,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:25:08,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:25:08,737 INFO L87 Difference]: Start difference. First operand 295 states and 404 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:25:09,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:09,896 INFO L93 Difference]: Finished difference Result 372 states and 436 transitions. [2023-11-29 06:25:09,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:25:09,896 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2023-11-29 06:25:09,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:09,898 INFO L225 Difference]: With dead ends: 372 [2023-11-29 06:25:09,898 INFO L226 Difference]: Without dead ends: 370 [2023-11-29 06:25:09,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:25:09,898 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 354 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:09,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 561 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:25:09,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-11-29 06:25:09,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 298. [2023-11-29 06:25:09,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 224 states have (on average 1.6160714285714286) internal successors, (362), 273 states have internal predecessors, (362), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:25:09,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 406 transitions. [2023-11-29 06:25:09,915 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 406 transitions. Word has length 36 [2023-11-29 06:25:09,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:09,916 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 406 transitions. [2023-11-29 06:25:09,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:25:09,916 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 406 transitions. [2023-11-29 06:25:09,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 06:25:09,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:09,916 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:09,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 06:25:10,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 06:25:10,117 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:25:10,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:10,117 INFO L85 PathProgramCache]: Analyzing trace with hash 335189530, now seen corresponding path program 1 times [2023-11-29 06:25:10,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:10,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152069689] [2023-11-29 06:25:10,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:10,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:10,123 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:10,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1795993099] [2023-11-29 06:25:10,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:10,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:10,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:10,125 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:10,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 06:25:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:10,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:25:10,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:10,214 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 06:25:10,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:10,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:10,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152069689] [2023-11-29 06:25:10,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:10,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795993099] [2023-11-29 06:25:10,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795993099] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:10,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:10,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:25:10,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123662840] [2023-11-29 06:25:10,261 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:10,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:25:10,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:10,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:25:10,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:25:10,262 INFO L87 Difference]: Start difference. First operand 298 states and 406 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:25:11,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:11,113 INFO L93 Difference]: Finished difference Result 328 states and 410 transitions. [2023-11-29 06:25:11,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:25:11,113 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2023-11-29 06:25:11,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:11,115 INFO L225 Difference]: With dead ends: 328 [2023-11-29 06:25:11,115 INFO L226 Difference]: Without dead ends: 327 [2023-11-29 06:25:11,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:25:11,115 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 314 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:11,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 481 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:25:11,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-11-29 06:25:11,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 298. [2023-11-29 06:25:11,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 224 states have (on average 1.6116071428571428) internal successors, (361), 273 states have internal predecessors, (361), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:25:11,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 405 transitions. [2023-11-29 06:25:11,139 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 405 transitions. Word has length 42 [2023-11-29 06:25:11,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:11,139 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 405 transitions. [2023-11-29 06:25:11,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:25:11,140 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 405 transitions. [2023-11-29 06:25:11,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 06:25:11,140 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:11,140 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:11,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 06:25:11,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 06:25:11,341 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:25:11,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:11,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1800940944, now seen corresponding path program 1 times [2023-11-29 06:25:11,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:11,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801758206] [2023-11-29 06:25:11,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:11,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:11,347 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:11,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1807705639] [2023-11-29 06:25:11,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:11,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:11,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:11,348 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:11,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 06:25:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:11,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:25:11,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:11,463 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 06:25:11,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:25:11,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:11,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801758206] [2023-11-29 06:25:11,463 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:11,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807705639] [2023-11-29 06:25:11,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807705639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:25:11,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:25:11,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:25:11,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304104664] [2023-11-29 06:25:11,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:25:11,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:25:11,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:11,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:25:11,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:25:11,465 INFO L87 Difference]: Start difference. First operand 298 states and 405 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:25:12,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:12,213 INFO L93 Difference]: Finished difference Result 327 states and 409 transitions. [2023-11-29 06:25:12,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:25:12,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2023-11-29 06:25:12,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:12,216 INFO L225 Difference]: With dead ends: 327 [2023-11-29 06:25:12,216 INFO L226 Difference]: Without dead ends: 326 [2023-11-29 06:25:12,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:25:12,217 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 293 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:12,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 248 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:25:12,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2023-11-29 06:25:12,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 298. [2023-11-29 06:25:12,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 224 states have (on average 1.6071428571428572) internal successors, (360), 273 states have internal predecessors, (360), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:25:12,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 404 transitions. [2023-11-29 06:25:12,233 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 404 transitions. Word has length 43 [2023-11-29 06:25:12,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:12,233 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 404 transitions. [2023-11-29 06:25:12,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:25:12,233 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 404 transitions. [2023-11-29 06:25:12,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 06:25:12,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:12,234 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:12,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 06:25:12,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 06:25:12,435 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:25:12,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:12,435 INFO L85 PathProgramCache]: Analyzing trace with hash 2132076373, now seen corresponding path program 1 times [2023-11-29 06:25:12,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:12,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006044933] [2023-11-29 06:25:12,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:12,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:12,440 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:12,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [604455931] [2023-11-29 06:25:12,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:12,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:12,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:12,442 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:12,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 06:25:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:12,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:25:12,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:12,645 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:25:12,645 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:24,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:24,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006044933] [2023-11-29 06:25:24,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:24,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604455931] [2023-11-29 06:25:24,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604455931] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:24,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:24,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:25:24,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014259600] [2023-11-29 06:25:24,983 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:24,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:25:24,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:24,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:25:24,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=112, Unknown=3, NotChecked=0, Total=156 [2023-11-29 06:25:24,984 INFO L87 Difference]: Start difference. First operand 298 states and 404 transitions. Second operand has 9 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:25:25,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:25,759 INFO L93 Difference]: Finished difference Result 373 states and 436 transitions. [2023-11-29 06:25:25,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:25:25,759 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 42 [2023-11-29 06:25:25,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:25,761 INFO L225 Difference]: With dead ends: 373 [2023-11-29 06:25:25,761 INFO L226 Difference]: Without dead ends: 371 [2023-11-29 06:25:25,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=45, Invalid=134, Unknown=3, NotChecked=0, Total=182 [2023-11-29 06:25:25,762 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 378 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:25,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 653 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:25:25,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-11-29 06:25:25,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 299. [2023-11-29 06:25:25,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 225 states have (on average 1.5955555555555556) internal successors, (359), 274 states have internal predecessors, (359), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:25:25,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 403 transitions. [2023-11-29 06:25:25,779 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 403 transitions. Word has length 42 [2023-11-29 06:25:25,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:25,779 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 403 transitions. [2023-11-29 06:25:25,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:25:25,779 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 403 transitions. [2023-11-29 06:25:25,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 06:25:25,780 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:25,780 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:25,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 06:25:25,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:25,980 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:25:25,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:25,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1669858212, now seen corresponding path program 1 times [2023-11-29 06:25:25,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:25,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734072989] [2023-11-29 06:25:25,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:25,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:25,987 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:25,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928941000] [2023-11-29 06:25:25,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:25,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:25,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:25,988 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:25,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 06:25:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:26,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:25:26,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:26,198 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:25:26,198 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:34,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:34,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734072989] [2023-11-29 06:25:34,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:34,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928941000] [2023-11-29 06:25:34,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928941000] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:34,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:34,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:25:34,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858777360] [2023-11-29 06:25:34,746 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:34,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:25:34,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:34,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:25:34,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=113, Unknown=2, NotChecked=0, Total=156 [2023-11-29 06:25:34,747 INFO L87 Difference]: Start difference. First operand 299 states and 403 transitions. Second operand has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:25:35,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:35,689 INFO L93 Difference]: Finished difference Result 373 states and 433 transitions. [2023-11-29 06:25:35,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:25:35,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 43 [2023-11-29 06:25:35,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:35,692 INFO L225 Difference]: With dead ends: 373 [2023-11-29 06:25:35,692 INFO L226 Difference]: Without dead ends: 371 [2023-11-29 06:25:35,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=56, Invalid=152, Unknown=2, NotChecked=0, Total=210 [2023-11-29 06:25:35,693 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 589 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:35,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 450 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:25:35,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-11-29 06:25:35,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 300. [2023-11-29 06:25:35,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 226 states have (on average 1.584070796460177) internal successors, (358), 275 states have internal predecessors, (358), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:25:35,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 402 transitions. [2023-11-29 06:25:35,721 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 402 transitions. Word has length 43 [2023-11-29 06:25:35,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:35,721 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 402 transitions. [2023-11-29 06:25:35,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:25:35,721 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 402 transitions. [2023-11-29 06:25:35,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 06:25:35,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:35,722 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:35,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 06:25:35,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:35,922 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:25:35,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:35,923 INFO L85 PathProgramCache]: Analyzing trace with hash 225997111, now seen corresponding path program 1 times [2023-11-29 06:25:35,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:35,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391309754] [2023-11-29 06:25:35,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:35,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:35,929 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:35,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827876485] [2023-11-29 06:25:35,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:35,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:35,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:35,931 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:35,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 06:25:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:35,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 06:25:35,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:36,276 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:25:36,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:40,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:40,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391309754] [2023-11-29 06:25:40,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:40,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827876485] [2023-11-29 06:25:40,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827876485] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:40,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:40,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 06:25:40,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997090824] [2023-11-29 06:25:40,751 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:40,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:25:40,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:40,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:25:40,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=348, Unknown=1, NotChecked=0, Total=420 [2023-11-29 06:25:40,752 INFO L87 Difference]: Start difference. First operand 300 states and 402 transitions. Second operand has 13 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:25:42,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:42,104 INFO L93 Difference]: Finished difference Result 365 states and 423 transitions. [2023-11-29 06:25:42,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:25:42,104 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2023-11-29 06:25:42,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:42,105 INFO L225 Difference]: With dead ends: 365 [2023-11-29 06:25:42,106 INFO L226 Difference]: Without dead ends: 364 [2023-11-29 06:25:42,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=143, Invalid=668, Unknown=1, NotChecked=0, Total=812 [2023-11-29 06:25:42,107 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 635 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:42,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 530 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 06:25:42,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-11-29 06:25:42,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 300. [2023-11-29 06:25:42,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 226 states have (on average 1.579646017699115) internal successors, (357), 275 states have internal predecessors, (357), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:25:42,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 401 transitions. [2023-11-29 06:25:42,132 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 401 transitions. Word has length 44 [2023-11-29 06:25:42,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:42,133 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 401 transitions. [2023-11-29 06:25:42,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:25:42,133 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 401 transitions. [2023-11-29 06:25:42,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 06:25:42,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:42,134 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:42,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 06:25:42,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:42,334 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:25:42,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:42,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1584024058, now seen corresponding path program 1 times [2023-11-29 06:25:42,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:42,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309963094] [2023-11-29 06:25:42,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:42,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:42,340 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:42,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [92305574] [2023-11-29 06:25:42,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:42,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:42,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:42,342 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:42,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 06:25:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:42,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 06:25:42,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:42,641 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:25:42,641 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:49,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:49,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309963094] [2023-11-29 06:25:49,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:49,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92305574] [2023-11-29 06:25:49,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92305574] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:49,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:49,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 06:25:49,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134531376] [2023-11-29 06:25:49,639 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:49,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:25:49,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:49,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:25:49,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=348, Unknown=1, NotChecked=0, Total=420 [2023-11-29 06:25:49,640 INFO L87 Difference]: Start difference. First operand 300 states and 401 transitions. Second operand has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:25:52,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:52,244 INFO L93 Difference]: Finished difference Result 364 states and 422 transitions. [2023-11-29 06:25:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:25:52,244 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2023-11-29 06:25:52,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:52,246 INFO L225 Difference]: With dead ends: 364 [2023-11-29 06:25:52,246 INFO L226 Difference]: Without dead ends: 363 [2023-11-29 06:25:52,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=143, Invalid=668, Unknown=1, NotChecked=0, Total=812 [2023-11-29 06:25:52,247 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 455 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:52,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 493 Invalid, 1302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:25:52,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-29 06:25:52,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 300. [2023-11-29 06:25:52,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 226 states have (on average 1.575221238938053) internal successors, (356), 275 states have internal predecessors, (356), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:25:52,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 400 transitions. [2023-11-29 06:25:52,263 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 400 transitions. Word has length 45 [2023-11-29 06:25:52,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:52,263 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 400 transitions. [2023-11-29 06:25:52,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:25:52,264 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 400 transitions. [2023-11-29 06:25:52,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 06:25:52,264 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:52,264 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:52,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 06:25:52,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 06:25:52,465 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:25:52,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:52,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1860105447, now seen corresponding path program 1 times [2023-11-29 06:25:52,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:52,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587740868] [2023-11-29 06:25:52,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:52,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:52,471 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:52,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1222952473] [2023-11-29 06:25:52,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:52,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:52,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:52,473 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:52,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 06:25:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:52,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:25:52,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:52,641 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:25:52,641 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:52,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:52,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587740868] [2023-11-29 06:25:52,766 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:52,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222952473] [2023-11-29 06:25:52,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222952473] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:52,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:52,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:25:52,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952046406] [2023-11-29 06:25:52,767 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:52,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:25:52,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:52,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:25:52,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:25:52,768 INFO L87 Difference]: Start difference. First operand 300 states and 400 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:25:54,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:54,295 INFO L93 Difference]: Finished difference Result 393 states and 451 transitions. [2023-11-29 06:25:54,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:25:54,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 46 [2023-11-29 06:25:54,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:54,297 INFO L225 Difference]: With dead ends: 393 [2023-11-29 06:25:54,298 INFO L226 Difference]: Without dead ends: 391 [2023-11-29 06:25:54,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:25:54,298 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 275 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:54,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 718 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 06:25:54,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2023-11-29 06:25:54,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 308. [2023-11-29 06:25:54,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 233 states have (on average 1.553648068669528) internal successors, (362), 282 states have internal predecessors, (362), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-29 06:25:54,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 408 transitions. [2023-11-29 06:25:54,316 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 408 transitions. Word has length 46 [2023-11-29 06:25:54,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:54,316 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 408 transitions. [2023-11-29 06:25:54,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:25:54,316 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 408 transitions. [2023-11-29 06:25:54,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 06:25:54,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:54,317 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:54,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 06:25:54,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 06:25:54,517 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:25:54,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:54,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1323533737, now seen corresponding path program 1 times [2023-11-29 06:25:54,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:54,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335160345] [2023-11-29 06:25:54,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:54,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:54,523 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:54,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150395322] [2023-11-29 06:25:54,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:54,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:54,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:54,524 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:54,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 06:25:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:54,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:25:54,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:54,629 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 06:25:54,629 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:25:54,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:54,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335160345] [2023-11-29 06:25:54,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:54,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150395322] [2023-11-29 06:25:54,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150395322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:25:54,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:25:54,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:25:54,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194621726] [2023-11-29 06:25:54,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:25:54,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:25:54,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:54,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:25:54,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:25:54,631 INFO L87 Difference]: Start difference. First operand 308 states and 408 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:25:55,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:55,180 INFO L93 Difference]: Finished difference Result 398 states and 498 transitions. [2023-11-29 06:25:55,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:25:55,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2023-11-29 06:25:55,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:55,183 INFO L225 Difference]: With dead ends: 398 [2023-11-29 06:25:55,183 INFO L226 Difference]: Without dead ends: 395 [2023-11-29 06:25:55,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:25:55,184 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 250 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:55,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 334 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:25:55,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2023-11-29 06:25:55,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 364. [2023-11-29 06:25:55,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 281 states have (on average 1.501779359430605) internal successors, (422), 330 states have internal predecessors, (422), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 06:25:55,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 484 transitions. [2023-11-29 06:25:55,220 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 484 transitions. Word has length 49 [2023-11-29 06:25:55,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:55,220 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 484 transitions. [2023-11-29 06:25:55,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:25:55,221 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 484 transitions. [2023-11-29 06:25:55,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-29 06:25:55,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:55,221 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:55,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 06:25:55,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 06:25:55,422 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:25:55,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:55,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1828693912, now seen corresponding path program 1 times [2023-11-29 06:25:55,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:55,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411459297] [2023-11-29 06:25:55,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:55,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:55,429 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:55,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2006655623] [2023-11-29 06:25:55,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:55,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:55,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:55,430 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:55,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 06:25:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:55,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:25:55,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:55,662 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:25:55,662 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:55,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:55,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411459297] [2023-11-29 06:25:55,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:55,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006655623] [2023-11-29 06:25:55,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006655623] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:55,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:55,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:25:55,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075646642] [2023-11-29 06:25:55,862 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:55,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:25:55,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:55,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:25:55,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:25:55,863 INFO L87 Difference]: Start difference. First operand 364 states and 484 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:25:57,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:57,162 INFO L93 Difference]: Finished difference Result 422 states and 501 transitions. [2023-11-29 06:25:57,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:25:57,163 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 47 [2023-11-29 06:25:57,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:57,165 INFO L225 Difference]: With dead ends: 422 [2023-11-29 06:25:57,165 INFO L226 Difference]: Without dead ends: 421 [2023-11-29 06:25:57,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:25:57,166 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 248 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:57,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 502 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:25:57,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2023-11-29 06:25:57,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 364. [2023-11-29 06:25:57,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 281 states have (on average 1.498220640569395) internal successors, (421), 330 states have internal predecessors, (421), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 06:25:57,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 483 transitions. [2023-11-29 06:25:57,194 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 483 transitions. Word has length 47 [2023-11-29 06:25:57,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:57,194 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 483 transitions. [2023-11-29 06:25:57,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:25:57,194 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 483 transitions. [2023-11-29 06:25:57,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 06:25:57,195 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:57,195 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:57,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 06:25:57,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:57,396 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:25:57,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:57,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1920127002, now seen corresponding path program 1 times [2023-11-29 06:25:57,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:57,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551744733] [2023-11-29 06:25:57,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:57,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:57,402 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:57,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [302641126] [2023-11-29 06:25:57,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:57,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:57,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:57,403 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:57,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 06:25:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:57,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:25:57,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:25:57,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:25:57,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:57,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551744733] [2023-11-29 06:25:57,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:57,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302641126] [2023-11-29 06:25:57,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302641126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:25:57,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:25:57,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:25:57,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106653019] [2023-11-29 06:25:57,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:25:57,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:25:57,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:57,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:25:57,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:25:57,533 INFO L87 Difference]: Start difference. First operand 364 states and 483 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:25:58,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:25:58,614 INFO L93 Difference]: Finished difference Result 403 states and 495 transitions. [2023-11-29 06:25:58,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:25:58,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2023-11-29 06:25:58,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:25:58,617 INFO L225 Difference]: With dead ends: 403 [2023-11-29 06:25:58,617 INFO L226 Difference]: Without dead ends: 402 [2023-11-29 06:25:58,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:25:58,618 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 379 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:25:58,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 366 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:25:58,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-11-29 06:25:58,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 364. [2023-11-29 06:25:58,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 281 states have (on average 1.4946619217081851) internal successors, (420), 330 states have internal predecessors, (420), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 06:25:58,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 482 transitions. [2023-11-29 06:25:58,654 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 482 transitions. Word has length 50 [2023-11-29 06:25:58,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:25:58,655 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 482 transitions. [2023-11-29 06:25:58,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:25:58,655 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 482 transitions. [2023-11-29 06:25:58,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 06:25:58,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:25:58,656 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:25:58,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 06:25:58,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 06:25:58,862 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:25:58,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:25:58,863 INFO L85 PathProgramCache]: Analyzing trace with hash 2099019004, now seen corresponding path program 1 times [2023-11-29 06:25:58,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:25:58,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891911592] [2023-11-29 06:25:58,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:58,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:25:58,868 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:25:58,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [864766429] [2023-11-29 06:25:58,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:25:58,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:25:58,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:25:58,869 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:25:58,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 06:25:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:25:58,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:25:58,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:25:59,000 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 06:25:59,000 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:25:59,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:25:59,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891911592] [2023-11-29 06:25:59,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:25:59,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864766429] [2023-11-29 06:25:59,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864766429] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:25:59,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:25:59,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:25:59,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831611098] [2023-11-29 06:25:59,246 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:25:59,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:25:59,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:25:59,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:25:59,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:25:59,247 INFO L87 Difference]: Start difference. First operand 364 states and 482 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:26:00,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:00,758 INFO L93 Difference]: Finished difference Result 603 states and 724 transitions. [2023-11-29 06:26:00,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:26:00,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2023-11-29 06:26:00,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:00,761 INFO L225 Difference]: With dead ends: 603 [2023-11-29 06:26:00,762 INFO L226 Difference]: Without dead ends: 601 [2023-11-29 06:26:00,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:26:00,763 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 547 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:00,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 734 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:26:00,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2023-11-29 06:26:00,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 394. [2023-11-29 06:26:00,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 307 states have (on average 1.488599348534202) internal successors, (457), 356 states have internal predecessors, (457), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 06:26:00,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 527 transitions. [2023-11-29 06:26:00,797 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 527 transitions. Word has length 53 [2023-11-29 06:26:00,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:00,798 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 527 transitions. [2023-11-29 06:26:00,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:26:00,798 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 527 transitions. [2023-11-29 06:26:00,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 06:26:00,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:00,799 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:00,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 06:26:00,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 06:26:00,999 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:01,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:01,000 INFO L85 PathProgramCache]: Analyzing trace with hash -896491264, now seen corresponding path program 1 times [2023-11-29 06:26:01,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:01,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357925355] [2023-11-29 06:26:01,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:01,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:01,005 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:01,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [27015309] [2023-11-29 06:26:01,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:01,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:01,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:01,006 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:01,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 06:26:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:01,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:26:01,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:01,088 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:01,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:26:01,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:01,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357925355] [2023-11-29 06:26:01,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:01,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27015309] [2023-11-29 06:26:01,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27015309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:26:01,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:26:01,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:26:01,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118463450] [2023-11-29 06:26:01,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:26:01,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:26:01,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:01,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:26:01,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:26:01,090 INFO L87 Difference]: Start difference. First operand 394 states and 527 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:01,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:01,643 INFO L93 Difference]: Finished difference Result 429 states and 543 transitions. [2023-11-29 06:26:01,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:26:01,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2023-11-29 06:26:01,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:01,646 INFO L225 Difference]: With dead ends: 429 [2023-11-29 06:26:01,646 INFO L226 Difference]: Without dead ends: 427 [2023-11-29 06:26:01,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:26:01,647 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 292 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:01,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 250 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:26:01,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-11-29 06:26:01,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 396. [2023-11-29 06:26:01,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 309 states have (on average 1.4789644012944985) internal successors, (457), 358 states have internal predecessors, (457), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 06:26:01,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 527 transitions. [2023-11-29 06:26:01,675 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 527 transitions. Word has length 56 [2023-11-29 06:26:01,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:01,675 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 527 transitions. [2023-11-29 06:26:01,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:01,675 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 527 transitions. [2023-11-29 06:26:01,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 06:26:01,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:01,676 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:01,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 06:26:01,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 06:26:01,876 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:01,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:01,877 INFO L85 PathProgramCache]: Analyzing trace with hash 645079786, now seen corresponding path program 1 times [2023-11-29 06:26:01,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:01,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350395419] [2023-11-29 06:26:01,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:01,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:01,883 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:01,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [491513] [2023-11-29 06:26:01,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:01,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:01,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:01,884 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:01,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 06:26:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:01,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:26:01,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:02,019 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 06:26:02,019 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:06,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:06,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350395419] [2023-11-29 06:26:06,290 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:06,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491513] [2023-11-29 06:26:06,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491513] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:26:06,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:26:06,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:26:06,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488435848] [2023-11-29 06:26:06,291 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:06,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:26:06,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:06,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:26:06,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=149, Unknown=1, NotChecked=0, Total=182 [2023-11-29 06:26:06,292 INFO L87 Difference]: Start difference. First operand 396 states and 527 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:26:07,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:07,518 INFO L93 Difference]: Finished difference Result 604 states and 722 transitions. [2023-11-29 06:26:07,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:26:07,518 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 54 [2023-11-29 06:26:07,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:07,521 INFO L225 Difference]: With dead ends: 604 [2023-11-29 06:26:07,521 INFO L226 Difference]: Without dead ends: 603 [2023-11-29 06:26:07,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=102, Invalid=317, Unknown=1, NotChecked=0, Total=420 [2023-11-29 06:26:07,522 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 569 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:07,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 674 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:26:07,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2023-11-29 06:26:07,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 396. [2023-11-29 06:26:07,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 309 states have (on average 1.4757281553398058) internal successors, (456), 358 states have internal predecessors, (456), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 06:26:07,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 526 transitions. [2023-11-29 06:26:07,550 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 526 transitions. Word has length 54 [2023-11-29 06:26:07,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:07,550 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 526 transitions. [2023-11-29 06:26:07,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:26:07,551 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 526 transitions. [2023-11-29 06:26:07,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 06:26:07,551 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:07,551 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:07,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 06:26:07,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 06:26:07,752 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:07,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:07,752 INFO L85 PathProgramCache]: Analyzing trace with hash -2021425292, now seen corresponding path program 1 times [2023-11-29 06:26:07,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:07,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850356459] [2023-11-29 06:26:07,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:07,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:07,757 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:07,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888564280] [2023-11-29 06:26:07,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:07,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:07,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:07,759 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:07,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 06:26:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:07,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:26:07,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:07,845 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:07,845 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:26:07,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:07,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850356459] [2023-11-29 06:26:07,846 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:07,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888564280] [2023-11-29 06:26:07,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888564280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:26:07,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:26:07,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:26:07,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543539258] [2023-11-29 06:26:07,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:26:07,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:26:07,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:07,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:26:07,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:26:07,848 INFO L87 Difference]: Start difference. First operand 396 states and 526 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:08,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:08,332 INFO L93 Difference]: Finished difference Result 429 states and 538 transitions. [2023-11-29 06:26:08,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:26:08,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 57 [2023-11-29 06:26:08,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:08,335 INFO L225 Difference]: With dead ends: 429 [2023-11-29 06:26:08,335 INFO L226 Difference]: Without dead ends: 427 [2023-11-29 06:26:08,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:26:08,335 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 284 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:08,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 254 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:26:08,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-11-29 06:26:08,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 398. [2023-11-29 06:26:08,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 311 states have (on average 1.4662379421221865) internal successors, (456), 360 states have internal predecessors, (456), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 06:26:08,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 526 transitions. [2023-11-29 06:26:08,367 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 526 transitions. Word has length 57 [2023-11-29 06:26:08,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:08,367 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 526 transitions. [2023-11-29 06:26:08,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:08,367 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 526 transitions. [2023-11-29 06:26:08,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 06:26:08,368 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:08,368 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:08,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-29 06:26:08,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2023-11-29 06:26:08,568 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:08,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:08,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1446387052, now seen corresponding path program 1 times [2023-11-29 06:26:08,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:08,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930056638] [2023-11-29 06:26:08,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:08,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:08,575 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:08,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2057165621] [2023-11-29 06:26:08,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:08,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:08,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:08,577 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:08,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 06:26:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:08,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:26:08,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:08,698 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 06:26:08,698 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:08,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:08,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930056638] [2023-11-29 06:26:08,720 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:08,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057165621] [2023-11-29 06:26:08,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057165621] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:26:08,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:26:08,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:26:08,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230414477] [2023-11-29 06:26:08,721 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:08,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:26:08,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:08,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:26:08,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:26:08,722 INFO L87 Difference]: Start difference. First operand 398 states and 526 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:26:09,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:09,161 INFO L93 Difference]: Finished difference Result 506 states and 648 transitions. [2023-11-29 06:26:09,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:26:09,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2023-11-29 06:26:09,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:09,163 INFO L225 Difference]: With dead ends: 506 [2023-11-29 06:26:09,163 INFO L226 Difference]: Without dead ends: 503 [2023-11-29 06:26:09,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:26:09,164 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 431 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:09,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 290 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:26:09,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2023-11-29 06:26:09,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 458. [2023-11-29 06:26:09,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 363 states have (on average 1.4958677685950412) internal successors, (543), 412 states have internal predecessors, (543), 43 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-29 06:26:09,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 629 transitions. [2023-11-29 06:26:09,196 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 629 transitions. Word has length 56 [2023-11-29 06:26:09,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:09,196 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 629 transitions. [2023-11-29 06:26:09,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:26:09,196 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 629 transitions. [2023-11-29 06:26:09,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 06:26:09,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:09,196 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:09,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2023-11-29 06:26:09,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2023-11-29 06:26:09,397 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:09,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:09,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1264483997, now seen corresponding path program 1 times [2023-11-29 06:26:09,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:09,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682020996] [2023-11-29 06:26:09,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:09,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:09,402 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:09,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [206068204] [2023-11-29 06:26:09,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:09,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:09,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:09,404 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:09,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 06:26:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:09,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:26:09,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:09,479 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:09,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:26:09,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:09,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682020996] [2023-11-29 06:26:09,479 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:09,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206068204] [2023-11-29 06:26:09,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206068204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:26:09,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:26:09,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:26:09,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735541671] [2023-11-29 06:26:09,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:26:09,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:26:09,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:09,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:26:09,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:26:09,481 INFO L87 Difference]: Start difference. First operand 458 states and 629 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:09,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:09,580 INFO L93 Difference]: Finished difference Result 660 states and 935 transitions. [2023-11-29 06:26:09,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:26:09,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 59 [2023-11-29 06:26:09,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:09,584 INFO L225 Difference]: With dead ends: 660 [2023-11-29 06:26:09,584 INFO L226 Difference]: Without dead ends: 659 [2023-11-29 06:26:09,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:26:09,585 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 30 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:09,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 215 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:26:09,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2023-11-29 06:26:09,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 607. [2023-11-29 06:26:09,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 489 states have (on average 1.5194274028629857) internal successors, (743), 538 states have internal predecessors, (743), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-29 06:26:09,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 875 transitions. [2023-11-29 06:26:09,640 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 875 transitions. Word has length 59 [2023-11-29 06:26:09,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:09,640 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 875 transitions. [2023-11-29 06:26:09,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:09,640 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 875 transitions. [2023-11-29 06:26:09,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 06:26:09,641 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:09,641 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:09,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 06:26:09,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2023-11-29 06:26:09,842 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:09,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:09,842 INFO L85 PathProgramCache]: Analyzing trace with hash -544298107, now seen corresponding path program 1 times [2023-11-29 06:26:09,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:09,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762518595] [2023-11-29 06:26:09,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:09,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:09,847 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:09,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033221395] [2023-11-29 06:26:09,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:09,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:09,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:09,848 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:09,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 06:26:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:09,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:26:09,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:09,940 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:09,940 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:26:09,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:09,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762518595] [2023-11-29 06:26:09,940 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:09,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033221395] [2023-11-29 06:26:09,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033221395] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:26:09,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:26:09,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:26:09,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181597169] [2023-11-29 06:26:09,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:26:09,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:26:09,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:09,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:26:09,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:26:09,942 INFO L87 Difference]: Start difference. First operand 607 states and 875 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:10,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:10,699 INFO L93 Difference]: Finished difference Result 626 states and 875 transitions. [2023-11-29 06:26:10,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:26:10,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2023-11-29 06:26:10,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:10,703 INFO L225 Difference]: With dead ends: 626 [2023-11-29 06:26:10,703 INFO L226 Difference]: Without dead ends: 625 [2023-11-29 06:26:10,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:26:10,703 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 246 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:10,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 335 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:26:10,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2023-11-29 06:26:10,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 607. [2023-11-29 06:26:10,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 489 states have (on average 1.5173824130879345) internal successors, (742), 538 states have internal predecessors, (742), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-29 06:26:10,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 874 transitions. [2023-11-29 06:26:10,749 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 874 transitions. Word has length 60 [2023-11-29 06:26:10,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:10,749 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 874 transitions. [2023-11-29 06:26:10,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:10,749 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 874 transitions. [2023-11-29 06:26:10,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 06:26:10,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:10,750 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:10,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 06:26:10,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:10,951 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:10,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:10,951 INFO L85 PathProgramCache]: Analyzing trace with hash 306628005, now seen corresponding path program 1 times [2023-11-29 06:26:10,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:10,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241051107] [2023-11-29 06:26:10,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:10,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:10,957 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:10,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [323042031] [2023-11-29 06:26:10,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:10,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:10,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:10,958 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:10,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 06:26:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:11,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:26:11,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:11,066 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:11,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:26:11,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:11,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241051107] [2023-11-29 06:26:11,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:11,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323042031] [2023-11-29 06:26:11,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323042031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:26:11,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:26:11,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:26:11,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759667834] [2023-11-29 06:26:11,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:26:11,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:26:11,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:11,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:26:11,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:26:11,069 INFO L87 Difference]: Start difference. First operand 607 states and 874 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:11,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:11,162 INFO L93 Difference]: Finished difference Result 607 states and 874 transitions. [2023-11-29 06:26:11,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:26:11,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 61 [2023-11-29 06:26:11,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:11,165 INFO L225 Difference]: With dead ends: 607 [2023-11-29 06:26:11,165 INFO L226 Difference]: Without dead ends: 605 [2023-11-29 06:26:11,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:26:11,166 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 80 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:11,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 139 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:26:11,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2023-11-29 06:26:11,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2023-11-29 06:26:11,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 489 states have (on average 1.492842535787321) internal successors, (730), 536 states have internal predecessors, (730), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-29 06:26:11,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 862 transitions. [2023-11-29 06:26:11,233 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 862 transitions. Word has length 61 [2023-11-29 06:26:11,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:11,233 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 862 transitions. [2023-11-29 06:26:11,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:11,233 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 862 transitions. [2023-11-29 06:26:11,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 06:26:11,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:11,234 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:11,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 06:26:11,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 06:26:11,434 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:11,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:11,435 INFO L85 PathProgramCache]: Analyzing trace with hash 915533703, now seen corresponding path program 1 times [2023-11-29 06:26:11,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:11,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186475274] [2023-11-29 06:26:11,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:11,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:11,441 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:11,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661437664] [2023-11-29 06:26:11,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:11,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:11,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:11,443 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:11,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 06:26:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:11,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:26:11,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:11,567 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:11,568 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:26:11,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:11,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186475274] [2023-11-29 06:26:11,568 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:11,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661437664] [2023-11-29 06:26:11,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661437664] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:26:11,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:26:11,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:26:11,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257924744] [2023-11-29 06:26:11,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:26:11,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:26:11,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:11,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:26:11,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:26:11,570 INFO L87 Difference]: Start difference. First operand 605 states and 862 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:11,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:11,702 INFO L93 Difference]: Finished difference Result 686 states and 921 transitions. [2023-11-29 06:26:11,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:26:11,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 62 [2023-11-29 06:26:11,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:11,706 INFO L225 Difference]: With dead ends: 686 [2023-11-29 06:26:11,706 INFO L226 Difference]: Without dead ends: 684 [2023-11-29 06:26:11,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:26:11,706 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 83 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:11,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 302 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:26:11,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2023-11-29 06:26:11,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 627. [2023-11-29 06:26:11,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 511 states have (on average 1.477495107632094) internal successors, (755), 558 states have internal predecessors, (755), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-29 06:26:11,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 887 transitions. [2023-11-29 06:26:11,753 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 887 transitions. Word has length 62 [2023-11-29 06:26:11,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:11,753 INFO L495 AbstractCegarLoop]: Abstraction has 627 states and 887 transitions. [2023-11-29 06:26:11,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:11,753 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 887 transitions. [2023-11-29 06:26:11,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 06:26:11,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:11,754 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:11,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 06:26:11,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:11,954 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:11,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:11,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1194139781, now seen corresponding path program 1 times [2023-11-29 06:26:11,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:11,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932854228] [2023-11-29 06:26:11,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:11,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:11,960 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:11,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [640354293] [2023-11-29 06:26:11,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:11,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:11,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:11,961 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:11,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 06:26:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:12,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:26:12,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:12,109 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 06:26:12,109 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:12,274 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 06:26:12,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:12,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932854228] [2023-11-29 06:26:12,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:12,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640354293] [2023-11-29 06:26:12,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640354293] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:26:12,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:26:12,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 06:26:12,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131077056] [2023-11-29 06:26:12,275 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:12,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:26:12,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:12,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:26:12,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:26:12,276 INFO L87 Difference]: Start difference. First operand 627 states and 887 transitions. Second operand has 15 states, 14 states have (on average 6.0) internal successors, (84), 13 states have internal predecessors, (84), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:26:14,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:14,471 INFO L93 Difference]: Finished difference Result 936 states and 1244 transitions. [2023-11-29 06:26:14,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 06:26:14,472 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.0) internal successors, (84), 13 states have internal predecessors, (84), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 62 [2023-11-29 06:26:14,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:14,476 INFO L225 Difference]: With dead ends: 936 [2023-11-29 06:26:14,477 INFO L226 Difference]: Without dead ends: 934 [2023-11-29 06:26:14,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=220, Invalid=650, Unknown=0, NotChecked=0, Total=870 [2023-11-29 06:26:14,477 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 853 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:14,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 961 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 06:26:14,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2023-11-29 06:26:14,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 675. [2023-11-29 06:26:14,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 553 states have (on average 1.4520795660036165) internal successors, (803), 600 states have internal predecessors, (803), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-29 06:26:14,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 947 transitions. [2023-11-29 06:26:14,534 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 947 transitions. Word has length 62 [2023-11-29 06:26:14,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:14,535 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 947 transitions. [2023-11-29 06:26:14,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.0) internal successors, (84), 13 states have internal predecessors, (84), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:26:14,535 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 947 transitions. [2023-11-29 06:26:14,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 06:26:14,535 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:14,535 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:14,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 06:26:14,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 06:26:14,736 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:14,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:14,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1636372342, now seen corresponding path program 1 times [2023-11-29 06:26:14,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:14,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239808591] [2023-11-29 06:26:14,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:14,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:14,742 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:14,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [963692092] [2023-11-29 06:26:14,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:14,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:14,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:14,743 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:14,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 06:26:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:14,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:26:14,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:14,863 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:26:14,863 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:15,027 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:26:15,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:15,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239808591] [2023-11-29 06:26:15,028 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:15,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963692092] [2023-11-29 06:26:15,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963692092] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:26:15,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:26:15,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 06:26:15,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342689775] [2023-11-29 06:26:15,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:15,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:26:15,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:15,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:26:15,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:26:15,030 INFO L87 Difference]: Start difference. First operand 675 states and 947 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:26:18,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:18,220 INFO L93 Difference]: Finished difference Result 979 states and 1216 transitions. [2023-11-29 06:26:18,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 06:26:18,221 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 63 [2023-11-29 06:26:18,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:18,225 INFO L225 Difference]: With dead ends: 979 [2023-11-29 06:26:18,225 INFO L226 Difference]: Without dead ends: 977 [2023-11-29 06:26:18,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=254, Invalid=558, Unknown=0, NotChecked=0, Total=812 [2023-11-29 06:26:18,227 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 1858 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1858 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:18,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1858 Valid, 443 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 06:26:18,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2023-11-29 06:26:18,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 821. [2023-11-29 06:26:18,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 681 states have (on average 1.4449339207048457) internal successors, (984), 728 states have internal predecessors, (984), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-29 06:26:18,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1164 transitions. [2023-11-29 06:26:18,294 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1164 transitions. Word has length 63 [2023-11-29 06:26:18,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:18,295 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 1164 transitions. [2023-11-29 06:26:18,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:26:18,295 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1164 transitions. [2023-11-29 06:26:18,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 06:26:18,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:18,301 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:18,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2023-11-29 06:26:18,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 06:26:18,501 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:18,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:18,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1487427236, now seen corresponding path program 1 times [2023-11-29 06:26:18,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:18,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472108784] [2023-11-29 06:26:18,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:18,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:18,508 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:18,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193884268] [2023-11-29 06:26:18,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:18,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:18,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:18,509 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:18,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 06:26:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:18,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:26:18,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:18,630 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:18,630 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:18,737 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:18,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:18,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472108784] [2023-11-29 06:26:18,738 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:18,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193884268] [2023-11-29 06:26:18,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193884268] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:26:18,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:26:18,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 06:26:18,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625755300] [2023-11-29 06:26:18,738 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:18,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:26:18,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:18,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:26:18,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:26:18,740 INFO L87 Difference]: Start difference. First operand 821 states and 1164 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:26:20,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:20,373 INFO L93 Difference]: Finished difference Result 1127 states and 1554 transitions. [2023-11-29 06:26:20,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:26:20,373 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 69 [2023-11-29 06:26:20,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:20,378 INFO L225 Difference]: With dead ends: 1127 [2023-11-29 06:26:20,378 INFO L226 Difference]: Without dead ends: 1125 [2023-11-29 06:26:20,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2023-11-29 06:26:20,378 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 1206 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:20,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 502 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:26:20,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2023-11-29 06:26:20,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 824. [2023-11-29 06:26:20,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 683 states have (on average 1.4202049780380674) internal successors, (970), 729 states have internal predecessors, (970), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-11-29 06:26:20,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1154 transitions. [2023-11-29 06:26:20,453 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1154 transitions. Word has length 69 [2023-11-29 06:26:20,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:20,453 INFO L495 AbstractCegarLoop]: Abstraction has 824 states and 1154 transitions. [2023-11-29 06:26:20,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 12 states have internal predecessors, (84), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:26:20,454 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1154 transitions. [2023-11-29 06:26:20,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 06:26:20,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:20,454 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:20,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 06:26:20,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 06:26:20,655 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:20,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:20,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1261604752, now seen corresponding path program 1 times [2023-11-29 06:26:20,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:20,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790243735] [2023-11-29 06:26:20,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:20,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:20,661 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:20,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1762774771] [2023-11-29 06:26:20,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:20,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:20,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:20,663 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:20,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 06:26:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:20,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:26:20,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:20,866 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:20,866 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:26:20,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:20,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790243735] [2023-11-29 06:26:20,866 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:20,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762774771] [2023-11-29 06:26:20,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762774771] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:26:20,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:26:20,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:26:20,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939036632] [2023-11-29 06:26:20,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:26:20,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:26:20,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:20,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:26:20,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:26:20,868 INFO L87 Difference]: Start difference. First operand 824 states and 1154 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:21,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:21,094 INFO L93 Difference]: Finished difference Result 851 states and 1160 transitions. [2023-11-29 06:26:21,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:26:21,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2023-11-29 06:26:21,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:21,099 INFO L225 Difference]: With dead ends: 851 [2023-11-29 06:26:21,099 INFO L226 Difference]: Without dead ends: 850 [2023-11-29 06:26:21,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:26:21,100 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 86 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:21,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 340 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:26:21,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2023-11-29 06:26:21,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 824. [2023-11-29 06:26:21,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 683 states have (on average 1.418740849194729) internal successors, (969), 729 states have internal predecessors, (969), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-11-29 06:26:21,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1153 transitions. [2023-11-29 06:26:21,179 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1153 transitions. Word has length 70 [2023-11-29 06:26:21,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:21,179 INFO L495 AbstractCegarLoop]: Abstraction has 824 states and 1153 transitions. [2023-11-29 06:26:21,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:21,180 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1153 transitions. [2023-11-29 06:26:21,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 06:26:21,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:21,180 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:21,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 06:26:21,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:21,381 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:21,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:21,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1134395824, now seen corresponding path program 1 times [2023-11-29 06:26:21,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:21,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475202903] [2023-11-29 06:26:21,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:21,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:21,386 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:21,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1056356382] [2023-11-29 06:26:21,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:21,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:21,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:21,388 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:21,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 06:26:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:21,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:26:21,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:21,503 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:21,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:26:21,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:21,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475202903] [2023-11-29 06:26:21,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:21,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056356382] [2023-11-29 06:26:21,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056356382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:26:21,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:26:21,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:26:21,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652289227] [2023-11-29 06:26:21,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:26:21,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:26:21,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:21,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:26:21,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:26:21,506 INFO L87 Difference]: Start difference. First operand 824 states and 1153 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:22,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:22,185 INFO L93 Difference]: Finished difference Result 866 states and 1168 transitions. [2023-11-29 06:26:22,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:26:22,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2023-11-29 06:26:22,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:22,191 INFO L225 Difference]: With dead ends: 866 [2023-11-29 06:26:22,191 INFO L226 Difference]: Without dead ends: 864 [2023-11-29 06:26:22,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:26:22,191 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 423 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:22,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 315 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:26:22,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2023-11-29 06:26:22,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 824. [2023-11-29 06:26:22,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 683 states have (on average 1.4011713030746706) internal successors, (957), 729 states have internal predecessors, (957), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-11-29 06:26:22,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1141 transitions. [2023-11-29 06:26:22,266 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1141 transitions. Word has length 70 [2023-11-29 06:26:22,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:22,266 INFO L495 AbstractCegarLoop]: Abstraction has 824 states and 1141 transitions. [2023-11-29 06:26:22,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:22,266 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1141 transitions. [2023-11-29 06:26:22,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 06:26:22,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:22,267 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:22,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 06:26:22,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:22,468 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:22,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:22,468 INFO L85 PathProgramCache]: Analyzing trace with hash 455041804, now seen corresponding path program 1 times [2023-11-29 06:26:22,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:22,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398335426] [2023-11-29 06:26:22,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:22,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:22,474 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:22,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1722506128] [2023-11-29 06:26:22,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:22,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:22,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:22,476 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:22,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 06:26:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:22,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:26:22,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:22,668 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:22,668 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:22,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:22,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398335426] [2023-11-29 06:26:22,738 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:22,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722506128] [2023-11-29 06:26:22,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722506128] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:26:22,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:26:22,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:26:22,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700257459] [2023-11-29 06:26:22,738 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:22,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:26:22,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:22,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:26:22,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:26:22,740 INFO L87 Difference]: Start difference. First operand 824 states and 1141 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:23,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:23,003 INFO L93 Difference]: Finished difference Result 962 states and 1282 transitions. [2023-11-29 06:26:23,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:26:23,003 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 71 [2023-11-29 06:26:23,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:23,007 INFO L225 Difference]: With dead ends: 962 [2023-11-29 06:26:23,007 INFO L226 Difference]: Without dead ends: 961 [2023-11-29 06:26:23,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:26:23,008 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 228 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:23,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 360 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:26:23,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2023-11-29 06:26:23,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 833. [2023-11-29 06:26:23,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 692 states have (on average 1.3973988439306357) internal successors, (967), 738 states have internal predecessors, (967), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-11-29 06:26:23,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1151 transitions. [2023-11-29 06:26:23,091 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1151 transitions. Word has length 71 [2023-11-29 06:26:23,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:23,092 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1151 transitions. [2023-11-29 06:26:23,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:23,092 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1151 transitions. [2023-11-29 06:26:23,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 06:26:23,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:23,093 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:23,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 06:26:23,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:23,293 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:23,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:23,293 INFO L85 PathProgramCache]: Analyzing trace with hash -791485490, now seen corresponding path program 1 times [2023-11-29 06:26:23,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:23,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054473809] [2023-11-29 06:26:23,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:23,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:23,299 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:23,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137513811] [2023-11-29 06:26:23,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:23,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:23,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:23,300 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:23,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 06:26:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:23,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:26:23,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:23,587 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:23,587 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:26:23,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:23,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054473809] [2023-11-29 06:26:23,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:23,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137513811] [2023-11-29 06:26:23,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137513811] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:26:23,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:26:23,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:26:23,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758108870] [2023-11-29 06:26:23,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:26:23,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:26:23,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:23,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:26:23,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:26:23,590 INFO L87 Difference]: Start difference. First operand 833 states and 1151 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:23,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:23,832 INFO L93 Difference]: Finished difference Result 859 states and 1157 transitions. [2023-11-29 06:26:23,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:26:23,832 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 73 [2023-11-29 06:26:23,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:23,836 INFO L225 Difference]: With dead ends: 859 [2023-11-29 06:26:23,836 INFO L226 Difference]: Without dead ends: 858 [2023-11-29 06:26:23,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:26:23,836 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 100 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:23,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 334 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:26:23,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2023-11-29 06:26:23,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 833. [2023-11-29 06:26:23,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 692 states have (on average 1.3959537572254335) internal successors, (966), 738 states have internal predecessors, (966), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-11-29 06:26:23,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1150 transitions. [2023-11-29 06:26:23,913 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1150 transitions. Word has length 73 [2023-11-29 06:26:23,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:23,913 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1150 transitions. [2023-11-29 06:26:23,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:23,913 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1150 transitions. [2023-11-29 06:26:23,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 06:26:23,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:23,914 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:23,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 06:26:24,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:24,114 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:24,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:24,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1983189207, now seen corresponding path program 1 times [2023-11-29 06:26:24,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:24,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298143754] [2023-11-29 06:26:24,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:24,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:24,120 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:24,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [976766813] [2023-11-29 06:26:24,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:24,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:24,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:24,121 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:24,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 06:26:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:24,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:26:24,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:24,239 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:24,239 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:24,348 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:24,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:24,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298143754] [2023-11-29 06:26:24,349 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:24,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976766813] [2023-11-29 06:26:24,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976766813] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:26:24,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:26:24,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 06:26:24,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948806654] [2023-11-29 06:26:24,350 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:24,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:26:24,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:24,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:26:24,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:26:24,351 INFO L87 Difference]: Start difference. First operand 833 states and 1150 transitions. Second operand has 14 states, 13 states have (on average 7.076923076923077) internal successors, (92), 14 states have internal predecessors, (92), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:26:25,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:25,865 INFO L93 Difference]: Finished difference Result 1295 states and 1722 transitions. [2023-11-29 06:26:25,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 06:26:25,866 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.076923076923077) internal successors, (92), 14 states have internal predecessors, (92), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 73 [2023-11-29 06:26:25,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:25,872 INFO L225 Difference]: With dead ends: 1295 [2023-11-29 06:26:25,872 INFO L226 Difference]: Without dead ends: 1293 [2023-11-29 06:26:25,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=545, Invalid=1261, Unknown=0, NotChecked=0, Total=1806 [2023-11-29 06:26:25,875 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 1776 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:25,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 510 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:26:25,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2023-11-29 06:26:25,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1182. [2023-11-29 06:26:25,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 997 states have (on average 1.4052156469408226) internal successors, (1401), 1042 states have internal predecessors, (1401), 137 states have call successors, (137), 2 states have call predecessors, (137), 2 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-29 06:26:25,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1675 transitions. [2023-11-29 06:26:25,998 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1675 transitions. Word has length 73 [2023-11-29 06:26:25,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:25,998 INFO L495 AbstractCegarLoop]: Abstraction has 1182 states and 1675 transitions. [2023-11-29 06:26:25,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.076923076923077) internal successors, (92), 14 states have internal predecessors, (92), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:26:25,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1675 transitions. [2023-11-29 06:26:25,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 06:26:25,999 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:25,999 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:26,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 06:26:26,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:26,200 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:26,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:26,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1896046426, now seen corresponding path program 1 times [2023-11-29 06:26:26,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:26,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86380976] [2023-11-29 06:26:26,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:26,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:26,206 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:26,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [675353766] [2023-11-29 06:26:26,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:26,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:26,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:26,207 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:26,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 06:26:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:26,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:26:26,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:26,573 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:26,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:26,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:26,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86380976] [2023-11-29 06:26:26,726 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:26,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675353766] [2023-11-29 06:26:26,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675353766] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:26:26,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:26:26,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:26:26,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434309816] [2023-11-29 06:26:26,727 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:26,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:26:26,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:26,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:26:26,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:26:26,728 INFO L87 Difference]: Start difference. First operand 1182 states and 1675 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:28,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:28,292 INFO L93 Difference]: Finished difference Result 1629 states and 2241 transitions. [2023-11-29 06:26:28,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:26:28,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 79 [2023-11-29 06:26:28,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:28,301 INFO L225 Difference]: With dead ends: 1629 [2023-11-29 06:26:28,301 INFO L226 Difference]: Without dead ends: 1627 [2023-11-29 06:26:28,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:26:28,302 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 364 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:28,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 566 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:26:28,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2023-11-29 06:26:28,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1552. [2023-11-29 06:26:28,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1323 states have (on average 1.3960695389266817) internal successors, (1847), 1368 states have internal predecessors, (1847), 181 states have call successors, (181), 2 states have call predecessors, (181), 2 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) [2023-11-29 06:26:28,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 2209 transitions. [2023-11-29 06:26:28,482 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 2209 transitions. Word has length 79 [2023-11-29 06:26:28,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:28,483 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 2209 transitions. [2023-11-29 06:26:28,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:28,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 2209 transitions. [2023-11-29 06:26:28,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 06:26:28,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:28,484 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:28,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 06:26:28,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-29 06:26:28,685 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:28,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:28,685 INFO L85 PathProgramCache]: Analyzing trace with hash -406314704, now seen corresponding path program 1 times [2023-11-29 06:26:28,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:28,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518576577] [2023-11-29 06:26:28,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:28,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:28,690 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:28,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [867634556] [2023-11-29 06:26:28,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:28,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:28,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:28,692 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:28,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 06:26:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:28,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:26:28,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:28,920 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:28,920 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:28,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:28,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518576577] [2023-11-29 06:26:28,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:28,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867634556] [2023-11-29 06:26:28,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867634556] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:26:28,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:26:28,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:26:28,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835172811] [2023-11-29 06:26:28,985 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:28,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:26:28,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:28,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:26:28,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:26:28,986 INFO L87 Difference]: Start difference. First operand 1552 states and 2209 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:29,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:29,978 INFO L93 Difference]: Finished difference Result 1637 states and 2255 transitions. [2023-11-29 06:26:29,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:26:29,978 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 79 [2023-11-29 06:26:29,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:29,986 INFO L225 Difference]: With dead ends: 1637 [2023-11-29 06:26:29,986 INFO L226 Difference]: Without dead ends: 1636 [2023-11-29 06:26:29,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:26:29,987 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 144 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:29,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 664 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:26:29,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2023-11-29 06:26:30,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1554. [2023-11-29 06:26:30,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1325 states have (on average 1.3954716981132076) internal successors, (1849), 1370 states have internal predecessors, (1849), 181 states have call successors, (181), 2 states have call predecessors, (181), 2 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) [2023-11-29 06:26:30,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2211 transitions. [2023-11-29 06:26:30,140 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2211 transitions. Word has length 79 [2023-11-29 06:26:30,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:30,140 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 2211 transitions. [2023-11-29 06:26:30,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:30,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2211 transitions. [2023-11-29 06:26:30,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 06:26:30,141 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:30,141 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:30,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-29 06:26:30,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 06:26:30,342 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:30,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:30,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1307349832, now seen corresponding path program 1 times [2023-11-29 06:26:30,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:30,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649737252] [2023-11-29 06:26:30,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:30,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:30,348 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:30,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [669342048] [2023-11-29 06:26:30,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:30,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:30,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:30,349 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:30,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 06:26:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:30,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:26:30,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:30,462 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 06:26:30,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:30,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:30,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649737252] [2023-11-29 06:26:30,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:30,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669342048] [2023-11-29 06:26:30,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669342048] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:26:30,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:26:30,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 06:26:30,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247051096] [2023-11-29 06:26:30,695 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:30,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:26:30,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:30,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:26:30,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:26:30,696 INFO L87 Difference]: Start difference. First operand 1554 states and 2211 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:31,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:31,326 INFO L93 Difference]: Finished difference Result 1607 states and 2230 transitions. [2023-11-29 06:26:31,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:26:31,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 80 [2023-11-29 06:26:31,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:31,332 INFO L225 Difference]: With dead ends: 1607 [2023-11-29 06:26:31,332 INFO L226 Difference]: Without dead ends: 1606 [2023-11-29 06:26:31,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:26:31,333 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 107 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:31,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 446 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:26:31,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2023-11-29 06:26:31,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1555. [2023-11-29 06:26:31,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1326 states have (on average 1.394419306184012) internal successors, (1849), 1371 states have internal predecessors, (1849), 181 states have call successors, (181), 2 states have call predecessors, (181), 2 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) [2023-11-29 06:26:31,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2211 transitions. [2023-11-29 06:26:31,554 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2211 transitions. Word has length 80 [2023-11-29 06:26:31,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:31,555 INFO L495 AbstractCegarLoop]: Abstraction has 1555 states and 2211 transitions. [2023-11-29 06:26:31,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:31,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2211 transitions. [2023-11-29 06:26:31,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 06:26:31,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:31,556 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:31,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 06:26:31,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-29 06:26:31,757 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:31,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:31,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1352102862, now seen corresponding path program 1 times [2023-11-29 06:26:31,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:31,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240110299] [2023-11-29 06:26:31,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:31,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:31,762 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:31,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [266160541] [2023-11-29 06:26:31,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:31,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:31,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:31,763 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:31,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 06:26:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:31,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:26:31,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:32,113 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:32,113 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:26:32,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:26:32,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240110299] [2023-11-29 06:26:32,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:26:32,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266160541] [2023-11-29 06:26:32,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266160541] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:26:32,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:26:32,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:26:32,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7169876] [2023-11-29 06:26:32,669 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:26:32,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:26:32,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:26:32,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:26:32,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:26:32,670 INFO L87 Difference]: Start difference. First operand 1555 states and 2211 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:34,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:26:34,609 INFO L93 Difference]: Finished difference Result 1628 states and 2232 transitions. [2023-11-29 06:26:34,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:26:34,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 80 [2023-11-29 06:26:34,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:26:34,616 INFO L225 Difference]: With dead ends: 1628 [2023-11-29 06:26:34,616 INFO L226 Difference]: Without dead ends: 1626 [2023-11-29 06:26:34,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:26:34,617 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 405 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:26:34,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 502 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 06:26:34,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2023-11-29 06:26:34,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1556. [2023-11-29 06:26:34,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1327 states have (on average 1.3933685003767897) internal successors, (1849), 1372 states have internal predecessors, (1849), 181 states have call successors, (181), 2 states have call predecessors, (181), 2 states have return successors, (181), 181 states have call predecessors, (181), 181 states have call successors, (181) [2023-11-29 06:26:34,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2211 transitions. [2023-11-29 06:26:34,780 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2211 transitions. Word has length 80 [2023-11-29 06:26:34,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:26:34,780 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 2211 transitions. [2023-11-29 06:26:34,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:26:34,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2211 transitions. [2023-11-29 06:26:34,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 06:26:34,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:26:34,781 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:26:34,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-29 06:26:34,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:34,982 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:26:34,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:26:34,982 INFO L85 PathProgramCache]: Analyzing trace with hash 289146212, now seen corresponding path program 1 times [2023-11-29 06:26:34,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:26:34,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350767667] [2023-11-29 06:26:34,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:34,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:26:34,988 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:26:34,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127414531] [2023-11-29 06:26:34,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:26:34,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:26:34,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:26:34,990 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:26:34,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 06:26:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:26:35,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:26:35,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:26:35,240 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:26:35,240 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:27:15,680 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:27:15,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:27:15,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350767667] [2023-11-29 06:27:15,681 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:27:15,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127414531] [2023-11-29 06:27:15,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127414531] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:27:15,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:27:15,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 06:27:15,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305283623] [2023-11-29 06:27:15,681 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:27:15,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:27:15,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:27:15,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:27:15,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=120, Unknown=10, NotChecked=0, Total=182 [2023-11-29 06:27:15,683 INFO L87 Difference]: Start difference. First operand 1556 states and 2211 transitions. Second operand has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 14 states have internal predecessors, (105), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:27:53,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:27:53,192 INFO L93 Difference]: Finished difference Result 2824 states and 3821 transitions. [2023-11-29 06:27:53,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 06:27:53,193 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 14 states have internal predecessors, (105), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 80 [2023-11-29 06:27:53,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:27:53,197 INFO L225 Difference]: With dead ends: 2824 [2023-11-29 06:27:53,198 INFO L226 Difference]: Without dead ends: 2823 [2023-11-29 06:27:53,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 72.7s TimeCoverageRelationStatistics Valid=219, Invalid=413, Unknown=18, NotChecked=0, Total=650 [2023-11-29 06:27:53,199 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 2047 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2067 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:27:53,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2067 Valid, 730 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-11-29 06:27:53,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2823 states. [2023-11-29 06:27:53,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2823 to 1693. [2023-11-29 06:27:53,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1450 states have (on average 1.3972413793103449) internal successors, (2026), 1495 states have internal predecessors, (2026), 195 states have call successors, (195), 2 states have call predecessors, (195), 2 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) [2023-11-29 06:27:53,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2416 transitions. [2023-11-29 06:27:53,405 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2416 transitions. Word has length 80 [2023-11-29 06:27:53,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:27:53,406 INFO L495 AbstractCegarLoop]: Abstraction has 1693 states and 2416 transitions. [2023-11-29 06:27:53,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 14 states have internal predecessors, (105), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:27:53,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2416 transitions. [2023-11-29 06:27:53,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 06:27:53,407 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:27:53,407 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:27:53,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-11-29 06:27:53,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 06:27:53,608 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:27:53,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:27:53,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1873138953, now seen corresponding path program 1 times [2023-11-29 06:27:53,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:27:53,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981565177] [2023-11-29 06:27:53,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:27:53,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:27:53,613 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:27:53,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1758275197] [2023-11-29 06:27:53,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:27:53,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:27:53,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:27:53,615 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:27:53,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 06:27:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:27:53,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 06:27:53,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:27:54,490 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:27:54,490 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:27:56,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:27:56,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981565177] [2023-11-29 06:27:56,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:27:56,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758275197] [2023-11-29 06:27:56,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758275197] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:27:56,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:27:56,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:27:56,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328301926] [2023-11-29 06:27:56,782 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:27:56,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:27:56,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:27:56,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:27:56,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=198, Unknown=1, NotChecked=0, Total=240 [2023-11-29 06:27:56,783 INFO L87 Difference]: Start difference. First operand 1693 states and 2416 transitions. Second operand has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:27:58,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:27:58,617 INFO L93 Difference]: Finished difference Result 2269 states and 3163 transitions. [2023-11-29 06:27:58,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:27:58,620 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 81 [2023-11-29 06:27:58,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:27:58,625 INFO L225 Difference]: With dead ends: 2269 [2023-11-29 06:27:58,625 INFO L226 Difference]: Without dead ends: 2268 [2023-11-29 06:27:58,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=86, Invalid=375, Unknown=1, NotChecked=0, Total=462 [2023-11-29 06:27:58,626 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 417 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:27:58,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 806 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 06:27:58,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2268 states. [2023-11-29 06:27:58,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2268 to 1886. [2023-11-29 06:27:58,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1886 states, 1621 states have (on average 1.3849475632325725) internal successors, (2245), 1666 states have internal predecessors, (2245), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 06:27:58,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1886 states to 1886 states and 2679 transitions. [2023-11-29 06:27:58,833 INFO L78 Accepts]: Start accepts. Automaton has 1886 states and 2679 transitions. Word has length 81 [2023-11-29 06:27:58,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:27:58,833 INFO L495 AbstractCegarLoop]: Abstraction has 1886 states and 2679 transitions. [2023-11-29 06:27:58,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:27:58,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1886 states and 2679 transitions. [2023-11-29 06:27:58,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 06:27:58,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:27:58,834 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:27:58,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2023-11-29 06:27:59,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 06:27:59,035 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:27:59,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:27:59,035 INFO L85 PathProgramCache]: Analyzing trace with hash 373598130, now seen corresponding path program 1 times [2023-11-29 06:27:59,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:27:59,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424651903] [2023-11-29 06:27:59,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:27:59,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:27:59,040 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:27:59,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1098769935] [2023-11-29 06:27:59,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:27:59,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:27:59,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:27:59,041 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:27:59,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 06:27:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:27:59,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:27:59,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:27:59,153 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 06:27:59,153 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:28:03,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:28:03,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424651903] [2023-11-29 06:28:03,263 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:28:03,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098769935] [2023-11-29 06:28:03,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098769935] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:28:03,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:28:03,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:28:03,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977702734] [2023-11-29 06:28:03,264 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:28:03,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:28:03,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:28:03,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:28:03,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=51, Unknown=1, NotChecked=0, Total=72 [2023-11-29 06:28:03,265 INFO L87 Difference]: Start difference. First operand 1886 states and 2679 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:28:03,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:28:03,883 INFO L93 Difference]: Finished difference Result 1942 states and 2703 transitions. [2023-11-29 06:28:03,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:28:03,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 81 [2023-11-29 06:28:03,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:28:03,887 INFO L225 Difference]: With dead ends: 1942 [2023-11-29 06:28:03,887 INFO L226 Difference]: Without dead ends: 1941 [2023-11-29 06:28:03,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=44, Invalid=87, Unknown=1, NotChecked=0, Total=132 [2023-11-29 06:28:03,889 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 115 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:28:03,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 396 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:28:03,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2023-11-29 06:28:04,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1889. [2023-11-29 06:28:04,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1624 states have (on average 1.3848522167487685) internal successors, (2249), 1669 states have internal predecessors, (2249), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 06:28:04,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2683 transitions. [2023-11-29 06:28:04,098 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2683 transitions. Word has length 81 [2023-11-29 06:28:04,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:28:04,099 INFO L495 AbstractCegarLoop]: Abstraction has 1889 states and 2683 transitions. [2023-11-29 06:28:04,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:28:04,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2683 transitions. [2023-11-29 06:28:04,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 06:28:04,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:28:04,100 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:28:04,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 06:28:04,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:04,301 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:28:04,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:28:04,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1303359706, now seen corresponding path program 1 times [2023-11-29 06:28:04,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:28:04,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023373821] [2023-11-29 06:28:04,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:04,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:28:04,307 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:28:04,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [623702346] [2023-11-29 06:28:04,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:04,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:04,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:28:04,309 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:28:04,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 06:28:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:28:04,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:28:04,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:28:04,645 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:28:04,645 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:28:04,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:28:04,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023373821] [2023-11-29 06:28:04,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:28:04,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623702346] [2023-11-29 06:28:04,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623702346] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:28:04,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:28:04,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:28:04,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597691701] [2023-11-29 06:28:04,868 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:28:04,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:28:04,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:28:04,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:28:04,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:28:04,869 INFO L87 Difference]: Start difference. First operand 1889 states and 2683 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:28:05,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:28:05,932 INFO L93 Difference]: Finished difference Result 1966 states and 2720 transitions. [2023-11-29 06:28:05,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:28:05,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 82 [2023-11-29 06:28:05,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:28:05,936 INFO L225 Difference]: With dead ends: 1966 [2023-11-29 06:28:05,936 INFO L226 Difference]: Without dead ends: 1965 [2023-11-29 06:28:05,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:28:05,937 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 163 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:28:05,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 667 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:28:05,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2023-11-29 06:28:06,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1890. [2023-11-29 06:28:06,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1890 states, 1625 states have (on average 1.3846153846153846) internal successors, (2250), 1670 states have internal predecessors, (2250), 217 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2023-11-29 06:28:06,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2684 transitions. [2023-11-29 06:28:06,159 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2684 transitions. Word has length 82 [2023-11-29 06:28:06,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:28:06,160 INFO L495 AbstractCegarLoop]: Abstraction has 1890 states and 2684 transitions. [2023-11-29 06:28:06,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:28:06,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2684 transitions. [2023-11-29 06:28:06,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 06:28:06,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:28:06,161 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:28:06,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2023-11-29 06:28:06,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:06,362 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:28:06,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:28:06,362 INFO L85 PathProgramCache]: Analyzing trace with hash 2001984862, now seen corresponding path program 1 times [2023-11-29 06:28:06,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:28:06,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33027686] [2023-11-29 06:28:06,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:06,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:28:06,367 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:28:06,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1087256524] [2023-11-29 06:28:06,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:06,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:06,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:28:06,368 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:28:06,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 06:28:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:28:06,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 06:28:06,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:28:07,426 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 06:28:07,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:28:08,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:28:08,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33027686] [2023-11-29 06:28:08,790 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:28:08,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087256524] [2023-11-29 06:28:08,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087256524] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:28:08,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:28:08,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:28:08,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064147881] [2023-11-29 06:28:08,790 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:28:08,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:28:08,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:28:08,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:28:08,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:28:08,792 INFO L87 Difference]: Start difference. First operand 1890 states and 2684 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:28:18,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:28:18,404 INFO L93 Difference]: Finished difference Result 2633 states and 3728 transitions. [2023-11-29 06:28:18,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:28:18,405 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 83 [2023-11-29 06:28:18,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:28:18,408 INFO L225 Difference]: With dead ends: 2633 [2023-11-29 06:28:18,408 INFO L226 Difference]: Without dead ends: 1585 [2023-11-29 06:28:18,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:28:18,410 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 200 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:28:18,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 716 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-11-29 06:28:18,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2023-11-29 06:28:18,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1537. [2023-11-29 06:28:18,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1316 states have (on average 1.3966565349544073) internal successors, (1838), 1361 states have internal predecessors, (1838), 173 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (173), 173 states have call predecessors, (173), 173 states have call successors, (173) [2023-11-29 06:28:18,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2184 transitions. [2023-11-29 06:28:18,608 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2184 transitions. Word has length 83 [2023-11-29 06:28:18,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:28:18,608 INFO L495 AbstractCegarLoop]: Abstraction has 1537 states and 2184 transitions. [2023-11-29 06:28:18,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:28:18,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2184 transitions. [2023-11-29 06:28:18,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 06:28:18,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:28:18,609 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:28:18,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2023-11-29 06:28:18,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:18,810 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:28:18,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:28:18,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1749445068, now seen corresponding path program 1 times [2023-11-29 06:28:18,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:28:18,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971364572] [2023-11-29 06:28:18,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:18,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:28:18,817 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:28:18,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193802977] [2023-11-29 06:28:18,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:18,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:18,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:28:18,818 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:28:18,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 06:28:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:28:18,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:28:18,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:28:19,110 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:28:19,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:28:19,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:28:19,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971364572] [2023-11-29 06:28:19,195 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:28:19,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193802977] [2023-11-29 06:28:19,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193802977] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:28:19,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:28:19,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:28:19,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156994532] [2023-11-29 06:28:19,196 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:28:19,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:28:19,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:28:19,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:28:19,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:28:19,197 INFO L87 Difference]: Start difference. First operand 1537 states and 2184 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:28:19,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:28:19,983 INFO L93 Difference]: Finished difference Result 1602 states and 2213 transitions. [2023-11-29 06:28:19,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:28:19,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 83 [2023-11-29 06:28:19,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:28:19,987 INFO L225 Difference]: With dead ends: 1602 [2023-11-29 06:28:19,987 INFO L226 Difference]: Without dead ends: 1601 [2023-11-29 06:28:19,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:28:19,988 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 269 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:28:19,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 439 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:28:19,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2023-11-29 06:28:20,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1546. [2023-11-29 06:28:20,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1325 states have (on average 1.3947169811320754) internal successors, (1848), 1370 states have internal predecessors, (1848), 173 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (173), 173 states have call predecessors, (173), 173 states have call successors, (173) [2023-11-29 06:28:20,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 2194 transitions. [2023-11-29 06:28:20,160 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 2194 transitions. Word has length 83 [2023-11-29 06:28:20,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:28:20,160 INFO L495 AbstractCegarLoop]: Abstraction has 1546 states and 2194 transitions. [2023-11-29 06:28:20,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:28:20,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 2194 transitions. [2023-11-29 06:28:20,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 06:28:20,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:28:20,161 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:28:20,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-29 06:28:20,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2023-11-29 06:28:20,362 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:28:20,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:28:20,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1827703932, now seen corresponding path program 1 times [2023-11-29 06:28:20,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:28:20,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641158392] [2023-11-29 06:28:20,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:20,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:28:20,369 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:28:20,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [130188599] [2023-11-29 06:28:20,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:20,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:20,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:28:20,370 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:28:20,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 06:28:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:28:20,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:28:20,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:28:20,620 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:28:20,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:28:25,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:28:25,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641158392] [2023-11-29 06:28:25,069 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:28:25,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130188599] [2023-11-29 06:28:25,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130188599] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:28:25,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:28:25,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:28:25,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825805281] [2023-11-29 06:28:25,069 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:28:25,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:28:25,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:28:25,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:28:25,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=82, Unknown=1, NotChecked=0, Total=110 [2023-11-29 06:28:25,071 INFO L87 Difference]: Start difference. First operand 1546 states and 2194 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:28:26,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:28:26,228 INFO L93 Difference]: Finished difference Result 1601 states and 2214 transitions. [2023-11-29 06:28:26,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:28:26,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 84 [2023-11-29 06:28:26,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:28:26,233 INFO L225 Difference]: With dead ends: 1601 [2023-11-29 06:28:26,233 INFO L226 Difference]: Without dead ends: 1600 [2023-11-29 06:28:26,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=64, Invalid=175, Unknown=1, NotChecked=0, Total=240 [2023-11-29 06:28:26,234 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 178 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:28:26,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 550 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:28:26,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2023-11-29 06:28:26,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1547. [2023-11-29 06:28:26,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1326 states have (on average 1.394419306184012) internal successors, (1849), 1371 states have internal predecessors, (1849), 173 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (173), 173 states have call predecessors, (173), 173 states have call successors, (173) [2023-11-29 06:28:26,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2195 transitions. [2023-11-29 06:28:26,412 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2195 transitions. Word has length 84 [2023-11-29 06:28:26,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:28:26,412 INFO L495 AbstractCegarLoop]: Abstraction has 1547 states and 2195 transitions. [2023-11-29 06:28:26,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:28:26,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2195 transitions. [2023-11-29 06:28:26,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 06:28:26,413 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:28:26,413 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:28:26,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2023-11-29 06:28:26,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2023-11-29 06:28:26,613 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:28:26,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:28:26,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1601777896, now seen corresponding path program 1 times [2023-11-29 06:28:26,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:28:26,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934900714] [2023-11-29 06:28:26,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:26,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:28:26,619 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:28:26,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [91959007] [2023-11-29 06:28:26,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:26,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:26,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:28:26,620 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:28:26,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 06:28:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:28:26,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:28:26,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:28:26,884 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:28:26,884 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:28:27,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:28:27,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934900714] [2023-11-29 06:28:27,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:28:27,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91959007] [2023-11-29 06:28:27,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91959007] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:28:27,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:28:27,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:28:27,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080237985] [2023-11-29 06:28:27,010 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:28:27,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:28:27,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:28:27,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:28:27,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:28:27,011 INFO L87 Difference]: Start difference. First operand 1547 states and 2195 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:28:27,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:28:27,790 INFO L93 Difference]: Finished difference Result 1601 states and 2213 transitions. [2023-11-29 06:28:27,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:28:27,790 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 84 [2023-11-29 06:28:27,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:28:27,792 INFO L225 Difference]: With dead ends: 1601 [2023-11-29 06:28:27,792 INFO L226 Difference]: Without dead ends: 1600 [2023-11-29 06:28:27,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:28:27,793 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 166 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:28:27,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 782 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:28:27,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2023-11-29 06:28:27,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1548. [2023-11-29 06:28:27,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1327 states have (on average 1.3941220798794274) internal successors, (1850), 1372 states have internal predecessors, (1850), 173 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (173), 173 states have call predecessors, (173), 173 states have call successors, (173) [2023-11-29 06:28:27,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 2196 transitions. [2023-11-29 06:28:27,962 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 2196 transitions. Word has length 84 [2023-11-29 06:28:27,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:28:27,962 INFO L495 AbstractCegarLoop]: Abstraction has 1548 states and 2196 transitions. [2023-11-29 06:28:27,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:28:27,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 2196 transitions. [2023-11-29 06:28:27,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 06:28:27,963 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:28:27,963 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:28:27,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2023-11-29 06:28:28,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2023-11-29 06:28:28,164 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:28:28,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:28:28,164 INFO L85 PathProgramCache]: Analyzing trace with hash 824247227, now seen corresponding path program 1 times [2023-11-29 06:28:28,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:28:28,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367119498] [2023-11-29 06:28:28,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:28,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:28:28,169 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:28:28,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [250290691] [2023-11-29 06:28:28,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:28,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:28,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:28:28,170 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:28:28,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 06:28:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:28:28,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 06:28:28,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:28:33,893 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 06:28:33,893 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:28:36,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:28:36,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367119498] [2023-11-29 06:28:36,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:28:36,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250290691] [2023-11-29 06:28:36,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250290691] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:28:36,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:28:36,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 06:28:36,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806388084] [2023-11-29 06:28:36,208 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:28:36,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:28:36,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:28:36,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:28:36,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=253, Unknown=2, NotChecked=0, Total=306 [2023-11-29 06:28:36,209 INFO L87 Difference]: Start difference. First operand 1548 states and 2196 transitions. Second operand has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 13 states have internal predecessors, (64), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:28:43,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:28:43,687 INFO L93 Difference]: Finished difference Result 1906 states and 2659 transitions. [2023-11-29 06:28:43,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:28:43,687 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 13 states have internal predecessors, (64), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 85 [2023-11-29 06:28:43,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:28:43,691 INFO L225 Difference]: With dead ends: 1906 [2023-11-29 06:28:43,691 INFO L226 Difference]: Without dead ends: 1905 [2023-11-29 06:28:43,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=115, Invalid=533, Unknown=2, NotChecked=0, Total=650 [2023-11-29 06:28:43,692 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 361 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:28:43,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 537 Invalid, 1598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1580 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-11-29 06:28:43,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2023-11-29 06:28:43,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1552. [2023-11-29 06:28:43,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1331 states have (on average 1.3929376408715253) internal successors, (1854), 1376 states have internal predecessors, (1854), 173 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (173), 173 states have call predecessors, (173), 173 states have call successors, (173) [2023-11-29 06:28:43,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 2200 transitions. [2023-11-29 06:28:43,875 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 2200 transitions. Word has length 85 [2023-11-29 06:28:43,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:28:43,876 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 2200 transitions. [2023-11-29 06:28:43,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 13 states have internal predecessors, (64), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:28:43,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 2200 transitions. [2023-11-29 06:28:43,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 06:28:43,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:28:43,876 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:28:43,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2023-11-29 06:28:44,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:44,077 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:28:44,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:28:44,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1884492618, now seen corresponding path program 1 times [2023-11-29 06:28:44,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:28:44,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112359202] [2023-11-29 06:28:44,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:44,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:28:44,082 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:28:44,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568291230] [2023-11-29 06:28:44,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:44,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:44,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:28:44,084 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:28:44,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 06:28:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:28:44,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:28:44,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:28:44,248 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 06:28:44,249 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:28:48,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:28:48,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112359202] [2023-11-29 06:28:48,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:28:48,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568291230] [2023-11-29 06:28:48,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568291230] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:28:48,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:28:48,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:28:48,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240730286] [2023-11-29 06:28:48,473 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:28:48,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:28:48,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:28:48,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:28:48,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=51, Unknown=1, NotChecked=0, Total=72 [2023-11-29 06:28:48,474 INFO L87 Difference]: Start difference. First operand 1552 states and 2200 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:28:49,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:28:49,078 INFO L93 Difference]: Finished difference Result 1610 states and 2225 transitions. [2023-11-29 06:28:49,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:28:49,079 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 85 [2023-11-29 06:28:49,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:28:49,081 INFO L225 Difference]: With dead ends: 1610 [2023-11-29 06:28:49,081 INFO L226 Difference]: Without dead ends: 1609 [2023-11-29 06:28:49,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=25, Invalid=64, Unknown=1, NotChecked=0, Total=90 [2023-11-29 06:28:49,082 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 100 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:28:49,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 627 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:28:49,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2023-11-29 06:28:49,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1555. [2023-11-29 06:28:49,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1334 states have (on average 1.393553223388306) internal successors, (1859), 1379 states have internal predecessors, (1859), 173 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (173), 173 states have call predecessors, (173), 173 states have call successors, (173) [2023-11-29 06:28:49,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2205 transitions. [2023-11-29 06:28:49,272 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2205 transitions. Word has length 85 [2023-11-29 06:28:49,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:28:49,272 INFO L495 AbstractCegarLoop]: Abstraction has 1555 states and 2205 transitions. [2023-11-29 06:28:49,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:28:49,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2205 transitions. [2023-11-29 06:28:49,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 06:28:49,273 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:28:49,273 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:28:49,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2023-11-29 06:28:49,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:49,473 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:28:49,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:28:49,474 INFO L85 PathProgramCache]: Analyzing trace with hash -218139554, now seen corresponding path program 1 times [2023-11-29 06:28:49,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:28:49,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600273619] [2023-11-29 06:28:49,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:49,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:28:49,478 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:28:49,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2143917360] [2023-11-29 06:28:49,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:49,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:49,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:28:49,480 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:28:49,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-29 06:28:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:28:49,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:28:49,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:28:50,065 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:28:50,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:28:50,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:28:50,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600273619] [2023-11-29 06:28:50,345 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:28:50,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143917360] [2023-11-29 06:28:50,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143917360] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:28:50,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:28:50,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:28:50,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157710897] [2023-11-29 06:28:50,346 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:28:50,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:28:50,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:28:50,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:28:50,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:28:50,347 INFO L87 Difference]: Start difference. First operand 1555 states and 2205 transitions. Second operand has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:28:51,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:28:51,946 INFO L93 Difference]: Finished difference Result 1925 states and 2680 transitions. [2023-11-29 06:28:51,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:28:51,946 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 86 [2023-11-29 06:28:51,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:28:51,950 INFO L225 Difference]: With dead ends: 1925 [2023-11-29 06:28:51,950 INFO L226 Difference]: Without dead ends: 1923 [2023-11-29 06:28:51,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:28:51,951 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 323 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:28:51,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 554 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:28:51,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2023-11-29 06:28:52,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1569. [2023-11-29 06:28:52,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1347 states have (on average 1.3897550111358574) internal successors, (1872), 1392 states have internal predecessors, (1872), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2023-11-29 06:28:52,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2220 transitions. [2023-11-29 06:28:52,134 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2220 transitions. Word has length 86 [2023-11-29 06:28:52,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:28:52,134 INFO L495 AbstractCegarLoop]: Abstraction has 1569 states and 2220 transitions. [2023-11-29 06:28:52,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:28:52,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2220 transitions. [2023-11-29 06:28:52,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 06:28:52,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:28:52,135 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:28:52,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2023-11-29 06:28:52,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:52,335 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:28:52,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:28:52,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1710271146, now seen corresponding path program 1 times [2023-11-29 06:28:52,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:28:52,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074361489] [2023-11-29 06:28:52,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:52,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:28:52,340 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:28:52,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123479143] [2023-11-29 06:28:52,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:52,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:52,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:28:52,342 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:28:52,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-29 06:28:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:28:52,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:28:52,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:28:52,705 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:28:52,705 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:28:52,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:28:52,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074361489] [2023-11-29 06:28:52,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:28:52,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123479143] [2023-11-29 06:28:52,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123479143] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:28:52,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:28:52,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:28:52,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364609313] [2023-11-29 06:28:52,817 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:28:52,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:28:52,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:28:52,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:28:52,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:28:52,818 INFO L87 Difference]: Start difference. First operand 1569 states and 2220 transitions. Second operand has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:28:53,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:28:53,890 INFO L93 Difference]: Finished difference Result 1621 states and 2235 transitions. [2023-11-29 06:28:53,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:28:53,891 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 86 [2023-11-29 06:28:53,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:28:53,892 INFO L225 Difference]: With dead ends: 1621 [2023-11-29 06:28:53,893 INFO L226 Difference]: Without dead ends: 1620 [2023-11-29 06:28:53,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:28:53,893 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 189 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:28:53,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 760 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:28:53,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2023-11-29 06:28:54,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1571. [2023-11-29 06:28:54,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1349 states have (on average 1.3891771682727947) internal successors, (1874), 1394 states have internal predecessors, (1874), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2023-11-29 06:28:54,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2222 transitions. [2023-11-29 06:28:54,075 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2222 transitions. Word has length 86 [2023-11-29 06:28:54,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:28:54,075 INFO L495 AbstractCegarLoop]: Abstraction has 1571 states and 2222 transitions. [2023-11-29 06:28:54,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:28:54,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2222 transitions. [2023-11-29 06:28:54,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 06:28:54,076 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:28:54,076 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:28:54,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2023-11-29 06:28:54,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:54,277 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:28:54,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:28:54,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1827608605, now seen corresponding path program 1 times [2023-11-29 06:28:54,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:28:54,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161841089] [2023-11-29 06:28:54,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:54,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:28:54,283 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:28:54,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781360673] [2023-11-29 06:28:54,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:28:54,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:28:54,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:28:54,284 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:28:54,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 06:28:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:28:54,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:28:54,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:28:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:28:55,177 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:28:57,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:28:57,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161841089] [2023-11-29 06:28:57,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:28:57,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781360673] [2023-11-29 06:28:57,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781360673] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:28:57,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:28:57,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:28:57,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866218411] [2023-11-29 06:28:57,858 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:28:57,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:28:57,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:28:57,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:28:57,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=165, Unknown=2, NotChecked=0, Total=210 [2023-11-29 06:28:57,859 INFO L87 Difference]: Start difference. First operand 1571 states and 2222 transitions. Second operand has 10 states, 9 states have (on average 7.0) internal successors, (63), 10 states have internal predecessors, (63), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:29:00,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:29:00,864 INFO L93 Difference]: Finished difference Result 1925 states and 2680 transitions. [2023-11-29 06:29:00,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:29:00,865 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.0) internal successors, (63), 10 states have internal predecessors, (63), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 87 [2023-11-29 06:29:00,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:29:00,867 INFO L225 Difference]: With dead ends: 1925 [2023-11-29 06:29:00,867 INFO L226 Difference]: Without dead ends: 1923 [2023-11-29 06:29:00,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=78, Invalid=262, Unknown=2, NotChecked=0, Total=342 [2023-11-29 06:29:00,867 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 302 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:29:00,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 624 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 06:29:00,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2023-11-29 06:29:01,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1867. [2023-11-29 06:29:01,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1867 states, 1608 states have (on average 1.3818407960199004) internal successors, (2222), 1653 states have internal predecessors, (2222), 211 states have call successors, (211), 2 states have call predecessors, (211), 2 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2023-11-29 06:29:01,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1867 states to 1867 states and 2644 transitions. [2023-11-29 06:29:01,101 INFO L78 Accepts]: Start accepts. Automaton has 1867 states and 2644 transitions. Word has length 87 [2023-11-29 06:29:01,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:29:01,101 INFO L495 AbstractCegarLoop]: Abstraction has 1867 states and 2644 transitions. [2023-11-29 06:29:01,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.0) internal successors, (63), 10 states have internal predecessors, (63), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:29:01,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1867 states and 2644 transitions. [2023-11-29 06:29:01,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 06:29:01,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:29:01,102 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:29:01,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2023-11-29 06:29:01,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:29:01,303 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:29:01,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:01,303 INFO L85 PathProgramCache]: Analyzing trace with hash 821292096, now seen corresponding path program 1 times [2023-11-29 06:29:01,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:01,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420166118] [2023-11-29 06:29:01,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:01,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:01,308 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:29:01,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [91869960] [2023-11-29 06:29:01,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:01,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:29:01,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:29:01,309 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:29:01,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2023-11-29 06:29:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:29:01,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-29 06:29:01,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:29:02,465 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:29:02,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:29:04,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:29:04,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420166118] [2023-11-29 06:29:04,370 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:29:04,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91869960] [2023-11-29 06:29:04,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91869960] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:29:04,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:29:04,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 06:29:04,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991582498] [2023-11-29 06:29:04,371 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:29:04,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 06:29:04,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:29:04,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 06:29:04,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2023-11-29 06:29:04,372 INFO L87 Difference]: Start difference. First operand 1867 states and 2644 transitions. Second operand has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 06:29:06,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:29:06,737 INFO L93 Difference]: Finished difference Result 1908 states and 2654 transitions. [2023-11-29 06:29:06,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 06:29:06,737 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 88 [2023-11-29 06:29:06,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:29:06,740 INFO L225 Difference]: With dead ends: 1908 [2023-11-29 06:29:06,740 INFO L226 Difference]: Without dead ends: 1907 [2023-11-29 06:29:06,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=131, Invalid=925, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 06:29:06,741 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 189 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:29:06,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 732 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2040 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 06:29:06,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2023-11-29 06:29:06,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1868. [2023-11-29 06:29:06,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1609 states have (on average 1.3816034804226227) internal successors, (2223), 1654 states have internal predecessors, (2223), 211 states have call successors, (211), 2 states have call predecessors, (211), 2 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2023-11-29 06:29:06,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2645 transitions. [2023-11-29 06:29:06,983 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2645 transitions. Word has length 88 [2023-11-29 06:29:06,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:29:06,983 INFO L495 AbstractCegarLoop]: Abstraction has 1868 states and 2645 transitions. [2023-11-29 06:29:06,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 06:29:06,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2645 transitions. [2023-11-29 06:29:06,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 06:29:06,984 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:29:06,984 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:29:06,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2023-11-29 06:29:07,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:29:07,184 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:29:07,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:29:07,184 INFO L85 PathProgramCache]: Analyzing trace with hash -309748609, now seen corresponding path program 1 times [2023-11-29 06:29:07,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:29:07,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457823047] [2023-11-29 06:29:07,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:07,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:29:07,189 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:29:07,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1220584603] [2023-11-29 06:29:07,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:29:07,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:29:07,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:29:07,191 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:29:07,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2023-11-29 06:29:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:29:07,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 52 conjunts are in the unsatisfiable core [2023-11-29 06:29:07,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:29:08,621 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:29:08,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:29:11,962 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:29:11,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:29:11,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457823047] [2023-11-29 06:29:11,962 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:29:11,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220584603] [2023-11-29 06:29:11,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220584603] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:29:11,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:29:11,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2023-11-29 06:29:11,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403540648] [2023-11-29 06:29:11,963 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:29:11,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-29 06:29:11,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:29:11,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-29 06:29:11,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2023-11-29 06:29:11,964 INFO L87 Difference]: Start difference. First operand 1868 states and 2645 transitions. Second operand has 29 states, 28 states have (on average 4.607142857142857) internal successors, (129), 29 states have internal predecessors, (129), 8 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 8 states have call successors, (12) [2023-11-29 06:29:34,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:29:47,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:29:49,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:29:51,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:29:52,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:30:05,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:30:13,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:30:14,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:30:24,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:30:26,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:30:39,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:30:41,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:30:46,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:30:51,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:30:56,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:31:19,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:31:35,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:31:47,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:31:54,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:32:15,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:32:36,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:32:36,269 INFO L93 Difference]: Finished difference Result 2086 states and 2815 transitions. [2023-11-29 06:32:36,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-11-29 06:32:36,270 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 4.607142857142857) internal successors, (129), 29 states have internal predecessors, (129), 8 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 8 states have call successors, (12) Word has length 89 [2023-11-29 06:32:36,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:32:36,272 INFO L225 Difference]: With dead ends: 2086 [2023-11-29 06:32:36,272 INFO L226 Difference]: Without dead ends: 2070 [2023-11-29 06:32:36,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1516 ImplicationChecksByTransitivity, 58.2s TimeCoverageRelationStatistics Valid=1103, Invalid=4902, Unknown=1, NotChecked=0, Total=6006 [2023-11-29 06:32:36,273 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 1725 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 3919 mSolverCounterSat, 233 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 147.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 4153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 3919 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 148.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:32:36,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1725 Valid, 731 Invalid, 4153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 3919 Invalid, 1 Unknown, 0 Unchecked, 148.5s Time] [2023-11-29 06:32:36,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states. [2023-11-29 06:32:36,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 1879. [2023-11-29 06:32:36,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1879 states, 1620 states have (on average 1.3882716049382715) internal successors, (2249), 1665 states have internal predecessors, (2249), 211 states have call successors, (211), 2 states have call predecessors, (211), 2 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2023-11-29 06:32:36,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 2671 transitions. [2023-11-29 06:32:36,627 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 2671 transitions. Word has length 89 [2023-11-29 06:32:36,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:32:36,627 INFO L495 AbstractCegarLoop]: Abstraction has 1879 states and 2671 transitions. [2023-11-29 06:32:36,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.607142857142857) internal successors, (129), 29 states have internal predecessors, (129), 8 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 8 states have call successors, (12) [2023-11-29 06:32:36,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 2671 transitions. [2023-11-29 06:32:36,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 06:32:36,628 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:32:36,628 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:36,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2023-11-29 06:32:36,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:36,829 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:32:36,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:36,829 INFO L85 PathProgramCache]: Analyzing trace with hash -509278056, now seen corresponding path program 1 times [2023-11-29 06:32:36,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:36,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28750829] [2023-11-29 06:32:36,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:36,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:36,834 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:32:36,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [674291031] [2023-11-29 06:32:36,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:36,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:36,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:32:36,835 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:32:36,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2023-11-29 06:32:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:36,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:32:36,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:32:36,975 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:32:36,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:32:37,076 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:32:37,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:37,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28750829] [2023-11-29 06:32:37,076 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:32:37,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674291031] [2023-11-29 06:32:37,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674291031] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:32:37,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:32:37,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2023-11-29 06:32:37,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168551949] [2023-11-29 06:32:37,077 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:32:37,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:32:37,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:37,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:32:37,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:32:37,078 INFO L87 Difference]: Start difference. First operand 1879 states and 2671 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:32:38,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:32:38,232 INFO L93 Difference]: Finished difference Result 2664 states and 3718 transitions. [2023-11-29 06:32:38,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:32:38,233 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 89 [2023-11-29 06:32:38,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:32:38,236 INFO L225 Difference]: With dead ends: 2664 [2023-11-29 06:32:38,236 INFO L226 Difference]: Without dead ends: 2623 [2023-11-29 06:32:38,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 170 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:32:38,237 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 698 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:32:38,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 1100 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:32:38,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2023-11-29 06:32:38,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 1880. [2023-11-29 06:32:38,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1880 states, 1621 states have (on average 1.3830968537939543) internal successors, (2242), 1666 states have internal predecessors, (2242), 211 states have call successors, (211), 2 states have call predecessors, (211), 2 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2023-11-29 06:32:38,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 2664 transitions. [2023-11-29 06:32:38,594 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 2664 transitions. Word has length 89 [2023-11-29 06:32:38,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:32:38,594 INFO L495 AbstractCegarLoop]: Abstraction has 1880 states and 2664 transitions. [2023-11-29 06:32:38,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:32:38,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 2664 transitions. [2023-11-29 06:32:38,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 06:32:38,595 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:32:38,595 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:38,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2023-11-29 06:32:38,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:38,795 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:32:38,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:38,796 INFO L85 PathProgramCache]: Analyzing trace with hash -159685344, now seen corresponding path program 1 times [2023-11-29 06:32:38,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:38,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357863336] [2023-11-29 06:32:38,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:38,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:38,800 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:32:38,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [228475259] [2023-11-29 06:32:38,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:38,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:38,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:32:38,801 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:32:38,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2023-11-29 06:32:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:38,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:32:38,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:32:39,000 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-29 06:32:39,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:32:39,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:39,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357863336] [2023-11-29 06:32:39,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:32:39,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228475259] [2023-11-29 06:32:39,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228475259] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:32:39,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:32:39,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:32:39,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713419329] [2023-11-29 06:32:39,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:32:39,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:32:39,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:39,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:32:39,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:32:39,002 INFO L87 Difference]: Start difference. First operand 1880 states and 2664 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 06:32:39,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:32:39,828 INFO L93 Difference]: Finished difference Result 1897 states and 2664 transitions. [2023-11-29 06:32:39,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:32:39,829 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 95 [2023-11-29 06:32:39,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:32:39,830 INFO L225 Difference]: With dead ends: 1897 [2023-11-29 06:32:39,831 INFO L226 Difference]: Without dead ends: 1896 [2023-11-29 06:32:39,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:32:39,831 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 189 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:32:39,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 443 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:32:39,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2023-11-29 06:32:40,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1880. [2023-11-29 06:32:40,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1880 states, 1621 states have (on average 1.38062924120913) internal successors, (2238), 1666 states have internal predecessors, (2238), 211 states have call successors, (211), 2 states have call predecessors, (211), 2 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2023-11-29 06:32:40,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 2660 transitions. [2023-11-29 06:32:40,181 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 2660 transitions. Word has length 95 [2023-11-29 06:32:40,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:32:40,181 INFO L495 AbstractCegarLoop]: Abstraction has 1880 states and 2660 transitions. [2023-11-29 06:32:40,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 06:32:40,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 2660 transitions. [2023-11-29 06:32:40,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 06:32:40,182 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:32:40,182 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:40,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2023-11-29 06:32:40,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:40,383 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:32:40,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:40,383 INFO L85 PathProgramCache]: Analyzing trace with hash -2079354570, now seen corresponding path program 2 times [2023-11-29 06:32:40,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:40,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469664994] [2023-11-29 06:32:40,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:40,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:40,388 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:32:40,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [543643305] [2023-11-29 06:32:40,389 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:32:40,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:40,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:32:40,390 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:32:40,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2023-11-29 06:32:40,444 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:32:40,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:32:40,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:32:40,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:32:40,929 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:32:40,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:32:41,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:41,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469664994] [2023-11-29 06:32:41,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:32:41,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543643305] [2023-11-29 06:32:41,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543643305] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:32:41,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:32:41,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 06:32:41,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100845550] [2023-11-29 06:32:41,086 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:32:41,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:32:41,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:41,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:32:41,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:32:41,087 INFO L87 Difference]: Start difference. First operand 1880 states and 2660 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 13 states have internal predecessors, (68), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:32:44,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:32:44,526 INFO L93 Difference]: Finished difference Result 2463 states and 3450 transitions. [2023-11-29 06:32:44,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:32:44,526 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 13 states have internal predecessors, (68), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 92 [2023-11-29 06:32:44,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:32:44,529 INFO L225 Difference]: With dead ends: 2463 [2023-11-29 06:32:44,529 INFO L226 Difference]: Without dead ends: 2461 [2023-11-29 06:32:44,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2023-11-29 06:32:44,530 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 643 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:32:44,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1024 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 06:32:44,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2461 states. [2023-11-29 06:32:44,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2461 to 2349. [2023-11-29 06:32:44,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2349 states, 2033 states have (on average 1.4092474176094443) internal successors, (2865), 2078 states have internal predecessors, (2865), 268 states have call successors, (268), 2 states have call predecessors, (268), 2 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2023-11-29 06:32:44,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3401 transitions. [2023-11-29 06:32:44,967 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3401 transitions. Word has length 92 [2023-11-29 06:32:44,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:32:44,968 INFO L495 AbstractCegarLoop]: Abstraction has 2349 states and 3401 transitions. [2023-11-29 06:32:44,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 13 states have internal predecessors, (68), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:32:44,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3401 transitions. [2023-11-29 06:32:44,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 06:32:44,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:32:44,969 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:44,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2023-11-29 06:32:45,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:45,169 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:32:45,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:45,170 INFO L85 PathProgramCache]: Analyzing trace with hash -35482154, now seen corresponding path program 2 times [2023-11-29 06:32:45,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:45,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136793876] [2023-11-29 06:32:45,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:45,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:45,175 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:32:45,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [371323902] [2023-11-29 06:32:45,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:32:45,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:45,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:32:45,176 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:32:45,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2023-11-29 06:32:45,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:32:45,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:32:45,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:32:45,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:32:45,681 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:32:45,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:32:46,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:46,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136793876] [2023-11-29 06:32:46,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:32:46,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371323902] [2023-11-29 06:32:46,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371323902] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:32:46,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:32:46,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 06:32:46,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423733581] [2023-11-29 06:32:46,725 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:32:46,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:32:46,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:46,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:32:46,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:32:46,726 INFO L87 Difference]: Start difference. First operand 2349 states and 3401 transitions. Second operand has 13 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:32:50,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:32:50,173 INFO L93 Difference]: Finished difference Result 2461 states and 3440 transitions. [2023-11-29 06:32:50,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:32:50,174 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 93 [2023-11-29 06:32:50,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:32:50,176 INFO L225 Difference]: With dead ends: 2461 [2023-11-29 06:32:50,176 INFO L226 Difference]: Without dead ends: 2459 [2023-11-29 06:32:50,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2023-11-29 06:32:50,177 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 623 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:32:50,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 1085 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 06:32:50,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2459 states. [2023-11-29 06:32:50,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2459 to 2350. [2023-11-29 06:32:50,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2350 states, 2034 states have (on average 1.404621435594887) internal successors, (2857), 2079 states have internal predecessors, (2857), 268 states have call successors, (268), 2 states have call predecessors, (268), 2 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2023-11-29 06:32:50,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2350 states to 2350 states and 3393 transitions. [2023-11-29 06:32:50,619 INFO L78 Accepts]: Start accepts. Automaton has 2350 states and 3393 transitions. Word has length 93 [2023-11-29 06:32:50,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:32:50,620 INFO L495 AbstractCegarLoop]: Abstraction has 2350 states and 3393 transitions. [2023-11-29 06:32:50,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:32:50,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2350 states and 3393 transitions. [2023-11-29 06:32:50,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 06:32:50,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:32:50,620 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:50,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2023-11-29 06:32:50,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:50,821 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:32:50,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:50,821 INFO L85 PathProgramCache]: Analyzing trace with hash -2106227716, now seen corresponding path program 1 times [2023-11-29 06:32:50,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:50,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397249682] [2023-11-29 06:32:50,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:50,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:50,826 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:32:50,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1881722009] [2023-11-29 06:32:50,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:50,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:50,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:32:50,828 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:32:50,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2023-11-29 06:32:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:50,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:32:50,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:32:52,073 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 06:32:52,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:32:52,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:52,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397249682] [2023-11-29 06:32:52,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:32:52,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881722009] [2023-11-29 06:32:52,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881722009] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:32:52,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:32:52,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:32:52,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987884957] [2023-11-29 06:32:52,202 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:32:52,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:32:52,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:52,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:32:52,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:32:52,203 INFO L87 Difference]: Start difference. First operand 2350 states and 3393 transitions. Second operand has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 10 states have internal predecessors, (66), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:32:54,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:32:54,143 INFO L93 Difference]: Finished difference Result 2409 states and 3427 transitions. [2023-11-29 06:32:54,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:32:54,144 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 10 states have internal predecessors, (66), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 95 [2023-11-29 06:32:54,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:32:54,146 INFO L225 Difference]: With dead ends: 2409 [2023-11-29 06:32:54,147 INFO L226 Difference]: Without dead ends: 2408 [2023-11-29 06:32:54,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:32:54,147 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 279 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:32:54,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 628 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:32:54,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2023-11-29 06:32:54,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 2350. [2023-11-29 06:32:54,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2350 states, 2034 states have (on average 1.3997050147492625) internal successors, (2847), 2079 states have internal predecessors, (2847), 268 states have call successors, (268), 2 states have call predecessors, (268), 2 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2023-11-29 06:32:54,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2350 states to 2350 states and 3383 transitions. [2023-11-29 06:32:54,589 INFO L78 Accepts]: Start accepts. Automaton has 2350 states and 3383 transitions. Word has length 95 [2023-11-29 06:32:54,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:32:54,590 INFO L495 AbstractCegarLoop]: Abstraction has 2350 states and 3383 transitions. [2023-11-29 06:32:54,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 10 states have internal predecessors, (66), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:32:54,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2350 states and 3383 transitions. [2023-11-29 06:32:54,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 06:32:54,591 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:32:54,591 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:54,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2023-11-29 06:32:54,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2023-11-29 06:32:54,791 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:32:54,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:54,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1099946696, now seen corresponding path program 1 times [2023-11-29 06:32:54,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:54,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034153891] [2023-11-29 06:32:54,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:54,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:54,797 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:32:54,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021274763] [2023-11-29 06:32:54,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:54,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:54,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:32:54,798 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:32:54,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2023-11-29 06:32:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:54,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:32:54,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:32:55,256 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:32:55,257 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:32:55,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:55,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034153891] [2023-11-29 06:32:55,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:32:55,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021274763] [2023-11-29 06:32:55,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021274763] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:32:55,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:32:55,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:32:55,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031932000] [2023-11-29 06:32:55,398 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:32:55,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:32:55,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:55,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:32:55,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:32:55,399 INFO L87 Difference]: Start difference. First operand 2350 states and 3383 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 12 states have internal predecessors, (70), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:32:58,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:32:58,713 INFO L93 Difference]: Finished difference Result 2444 states and 3402 transitions. [2023-11-29 06:32:58,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:32:58,714 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 12 states have internal predecessors, (70), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 94 [2023-11-29 06:32:58,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:32:58,716 INFO L225 Difference]: With dead ends: 2444 [2023-11-29 06:32:58,716 INFO L226 Difference]: Without dead ends: 2442 [2023-11-29 06:32:58,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:32:58,717 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 629 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:32:58,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 1053 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 06:32:58,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2023-11-29 06:32:59,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2350. [2023-11-29 06:32:59,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2350 states, 2034 states have (on average 1.3947885939036382) internal successors, (2837), 2079 states have internal predecessors, (2837), 268 states have call successors, (268), 2 states have call predecessors, (268), 2 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2023-11-29 06:32:59,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2350 states to 2350 states and 3373 transitions. [2023-11-29 06:32:59,160 INFO L78 Accepts]: Start accepts. Automaton has 2350 states and 3373 transitions. Word has length 94 [2023-11-29 06:32:59,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:32:59,161 INFO L495 AbstractCegarLoop]: Abstraction has 2350 states and 3373 transitions. [2023-11-29 06:32:59,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 12 states have internal predecessors, (70), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:32:59,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2350 states and 3373 transitions. [2023-11-29 06:32:59,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 06:32:59,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:32:59,162 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:59,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2023-11-29 06:32:59,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2023-11-29 06:32:59,362 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:32:59,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:59,362 INFO L85 PathProgramCache]: Analyzing trace with hash 261390872, now seen corresponding path program 1 times [2023-11-29 06:32:59,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:59,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99947704] [2023-11-29 06:32:59,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:59,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:59,367 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:32:59,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [993609632] [2023-11-29 06:32:59,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:59,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:59,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:32:59,368 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:32:59,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2023-11-29 06:32:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:59,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:32:59,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:32:59,870 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:32:59,870 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:33:00,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:33:00,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99947704] [2023-11-29 06:33:00,257 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:33:00,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993609632] [2023-11-29 06:33:00,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993609632] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:33:00,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:33:00,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:33:00,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796944698] [2023-11-29 06:33:00,257 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:33:00,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:33:00,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:33:00,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:33:00,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:33:00,258 INFO L87 Difference]: Start difference. First operand 2350 states and 3373 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:33:04,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:33:04,169 INFO L93 Difference]: Finished difference Result 2442 states and 3392 transitions. [2023-11-29 06:33:04,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:33:04,170 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 95 [2023-11-29 06:33:04,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:33:04,172 INFO L225 Difference]: With dead ends: 2442 [2023-11-29 06:33:04,172 INFO L226 Difference]: Without dead ends: 2440 [2023-11-29 06:33:04,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2023-11-29 06:33:04,173 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 589 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:33:04,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 1149 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 06:33:04,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2023-11-29 06:33:04,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2350. [2023-11-29 06:33:04,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2350 states, 2034 states have (on average 1.3898721730580137) internal successors, (2827), 2079 states have internal predecessors, (2827), 268 states have call successors, (268), 2 states have call predecessors, (268), 2 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2023-11-29 06:33:04,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2350 states to 2350 states and 3363 transitions. [2023-11-29 06:33:04,623 INFO L78 Accepts]: Start accepts. Automaton has 2350 states and 3363 transitions. Word has length 95 [2023-11-29 06:33:04,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:33:04,623 INFO L495 AbstractCegarLoop]: Abstraction has 2350 states and 3363 transitions. [2023-11-29 06:33:04,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:33:04,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2350 states and 3363 transitions. [2023-11-29 06:33:04,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 06:33:04,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:33:04,624 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:33:04,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2023-11-29 06:33:04,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2023-11-29 06:33:04,824 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:33:04,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:33:04,825 INFO L85 PathProgramCache]: Analyzing trace with hash -486817478, now seen corresponding path program 2 times [2023-11-29 06:33:04,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:33:04,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272106003] [2023-11-29 06:33:04,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:04,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:33:04,830 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:33:04,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273871910] [2023-11-29 06:33:04,830 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:33:04,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:04,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:33:04,831 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:33:04,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2023-11-29 06:33:04,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:33:04,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:33:04,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 06:33:04,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:33:05,377 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:33:05,377 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:33:16,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:33:16,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272106003] [2023-11-29 06:33:16,010 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:33:16,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273871910] [2023-11-29 06:33:16,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273871910] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:33:16,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:33:16,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 06:33:16,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063573514] [2023-11-29 06:33:16,010 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:33:16,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:33:16,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:33:16,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:33:16,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=231, Unknown=3, NotChecked=0, Total=272 [2023-11-29 06:33:16,011 INFO L87 Difference]: Start difference. First operand 2350 states and 3363 transitions. Second operand has 13 states, 12 states have (on average 6.0) internal successors, (72), 13 states have internal predecessors, (72), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:33:18,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:33:18,989 INFO L93 Difference]: Finished difference Result 2440 states and 3382 transitions. [2023-11-29 06:33:18,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:33:18,989 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.0) internal successors, (72), 13 states have internal predecessors, (72), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 96 [2023-11-29 06:33:18,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:33:18,992 INFO L225 Difference]: With dead ends: 2440 [2023-11-29 06:33:18,993 INFO L226 Difference]: Without dead ends: 2439 [2023-11-29 06:33:18,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=89, Invalid=508, Unknown=3, NotChecked=0, Total=600 [2023-11-29 06:33:18,993 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 465 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:33:18,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1184 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2036 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 06:33:18,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2023-11-29 06:33:19,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2350. [2023-11-29 06:33:19,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2350 states, 2034 states have (on average 1.3854473942969519) internal successors, (2818), 2079 states have internal predecessors, (2818), 268 states have call successors, (268), 2 states have call predecessors, (268), 2 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2023-11-29 06:33:19,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2350 states to 2350 states and 3354 transitions. [2023-11-29 06:33:19,436 INFO L78 Accepts]: Start accepts. Automaton has 2350 states and 3354 transitions. Word has length 96 [2023-11-29 06:33:19,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:33:19,436 INFO L495 AbstractCegarLoop]: Abstraction has 2350 states and 3354 transitions. [2023-11-29 06:33:19,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.0) internal successors, (72), 13 states have internal predecessors, (72), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 06:33:19,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2350 states and 3354 transitions. [2023-11-29 06:33:19,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 06:33:19,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:33:19,437 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:33:19,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2023-11-29 06:33:19,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:19,638 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:33:19,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:33:19,638 INFO L85 PathProgramCache]: Analyzing trace with hash 2088527450, now seen corresponding path program 1 times [2023-11-29 06:33:19,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:33:19,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461607517] [2023-11-29 06:33:19,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:19,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:33:19,643 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:33:19,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1796941007] [2023-11-29 06:33:19,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:19,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:19,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:33:19,644 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:33:19,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2023-11-29 06:33:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:33:19,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:33:19,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:33:21,413 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 06:33:21,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:33:23,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:33:23,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461607517] [2023-11-29 06:33:23,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:33:23,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796941007] [2023-11-29 06:33:23,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796941007] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:33:23,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:33:23,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:33:23,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413597895] [2023-11-29 06:33:23,940 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:33:23,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:33:23,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:33:23,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:33:23,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:33:23,941 INFO L87 Difference]: Start difference. First operand 2350 states and 3354 transitions. Second operand has 11 states, 10 states have (on average 7.6) internal successors, (76), 11 states have internal predecessors, (76), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:33:41,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:33:41,351 INFO L93 Difference]: Finished difference Result 2391 states and 3357 transitions. [2023-11-29 06:33:41,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 06:33:41,352 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.6) internal successors, (76), 11 states have internal predecessors, (76), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 97 [2023-11-29 06:33:41,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:33:41,355 INFO L225 Difference]: With dead ends: 2391 [2023-11-29 06:33:41,355 INFO L226 Difference]: Without dead ends: 2389 [2023-11-29 06:33:41,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=184, Invalid=628, Unknown=0, NotChecked=0, Total=812 [2023-11-29 06:33:41,356 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 527 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:33:41,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 298 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2023-11-29 06:33:41,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2023-11-29 06:33:41,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 2349. [2023-11-29 06:33:41,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2349 states, 2034 states have (on average 1.359882005899705) internal successors, (2766), 2078 states have internal predecessors, (2766), 268 states have call successors, (268), 2 states have call predecessors, (268), 2 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2023-11-29 06:33:41,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3302 transitions. [2023-11-29 06:33:41,831 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3302 transitions. Word has length 97 [2023-11-29 06:33:41,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:33:41,831 INFO L495 AbstractCegarLoop]: Abstraction has 2349 states and 3302 transitions. [2023-11-29 06:33:41,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.6) internal successors, (76), 11 states have internal predecessors, (76), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:33:41,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3302 transitions. [2023-11-29 06:33:41,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 06:33:41,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:33:41,832 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:33:41,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2023-11-29 06:33:42,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:42,032 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:33:42,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:33:42,032 INFO L85 PathProgramCache]: Analyzing trace with hash 719044009, now seen corresponding path program 1 times [2023-11-29 06:33:42,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:33:42,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317084188] [2023-11-29 06:33:42,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:42,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:33:42,037 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:33:42,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [252485046] [2023-11-29 06:33:42,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:42,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:42,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:33:42,038 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:33:42,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2023-11-29 06:33:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:33:42,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:33:42,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:33:42,166 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:33:42,166 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:33:42,281 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:33:42,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:33:42,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317084188] [2023-11-29 06:33:42,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:33:42,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252485046] [2023-11-29 06:33:42,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252485046] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:33:42,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:33:42,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 06:33:42,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542650626] [2023-11-29 06:33:42,282 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:33:42,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:33:42,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:33:42,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:33:42,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:33:42,283 INFO L87 Difference]: Start difference. First operand 2349 states and 3302 transitions. Second operand has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 10 states have internal predecessors, (110), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 06:33:43,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:33:43,572 INFO L93 Difference]: Finished difference Result 2518 states and 3488 transitions. [2023-11-29 06:33:43,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:33:43,573 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 10 states have internal predecessors, (110), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 102 [2023-11-29 06:33:43,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:33:43,575 INFO L225 Difference]: With dead ends: 2518 [2023-11-29 06:33:43,576 INFO L226 Difference]: Without dead ends: 2517 [2023-11-29 06:33:43,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:33:43,576 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 428 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:33:43,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 390 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:33:43,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2023-11-29 06:33:44,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2473. [2023-11-29 06:33:44,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 2140 states have (on average 1.3542056074766355) internal successors, (2898), 2184 states have internal predecessors, (2898), 286 states have call successors, (286), 2 states have call predecessors, (286), 2 states have return successors, (286), 286 states have call predecessors, (286), 286 states have call successors, (286) [2023-11-29 06:33:44,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 3470 transitions. [2023-11-29 06:33:44,078 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 3470 transitions. Word has length 102 [2023-11-29 06:33:44,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:33:44,078 INFO L495 AbstractCegarLoop]: Abstraction has 2473 states and 3470 transitions. [2023-11-29 06:33:44,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 10 states have internal predecessors, (110), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 06:33:44,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 3470 transitions. [2023-11-29 06:33:44,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 06:33:44,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:33:44,079 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:33:44,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2023-11-29 06:33:44,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:44,280 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:33:44,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:33:44,280 INFO L85 PathProgramCache]: Analyzing trace with hash 815527915, now seen corresponding path program 1 times [2023-11-29 06:33:44,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:33:44,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136448793] [2023-11-29 06:33:44,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:44,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:33:44,286 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:33:44,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1094278213] [2023-11-29 06:33:44,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:44,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:44,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:33:44,287 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:33:44,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2023-11-29 06:33:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:33:44,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:33:44,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:33:44,409 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:33:44,410 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:33:44,509 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:33:44,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:33:44,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136448793] [2023-11-29 06:33:44,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:33:44,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094278213] [2023-11-29 06:33:44,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094278213] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:33:44,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:33:44,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 06:33:44,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37704034] [2023-11-29 06:33:44,511 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:33:44,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:33:44,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:33:44,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:33:44,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:33:44,512 INFO L87 Difference]: Start difference. First operand 2473 states and 3470 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 06:33:45,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:33:45,692 INFO L93 Difference]: Finished difference Result 2519 states and 3486 transitions. [2023-11-29 06:33:45,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:33:45,692 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 103 [2023-11-29 06:33:45,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:33:45,695 INFO L225 Difference]: With dead ends: 2519 [2023-11-29 06:33:45,695 INFO L226 Difference]: Without dead ends: 2517 [2023-11-29 06:33:45,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:33:45,696 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 570 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:33:45,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 380 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:33:45,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2023-11-29 06:33:46,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 1846. [2023-11-29 06:33:46,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1846 states, 1593 states have (on average 1.325172630257376) internal successors, (2111), 1636 states have internal predecessors, (2111), 207 states have call successors, (207), 2 states have call predecessors, (207), 2 states have return successors, (207), 207 states have call predecessors, (207), 207 states have call successors, (207) [2023-11-29 06:33:46,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 2525 transitions. [2023-11-29 06:33:46,083 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 2525 transitions. Word has length 103 [2023-11-29 06:33:46,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:33:46,084 INFO L495 AbstractCegarLoop]: Abstraction has 1846 states and 2525 transitions. [2023-11-29 06:33:46,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 06:33:46,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 2525 transitions. [2023-11-29 06:33:46,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 06:33:46,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:33:46,085 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:33:46,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2023-11-29 06:33:46,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:46,285 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:33:46,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:33:46,286 INFO L85 PathProgramCache]: Analyzing trace with hash -2120149016, now seen corresponding path program 1 times [2023-11-29 06:33:46,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:33:46,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482481550] [2023-11-29 06:33:46,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:46,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:33:46,291 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:33:46,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [995750444] [2023-11-29 06:33:46,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:46,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:46,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:33:46,293 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:33:46,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2023-11-29 06:33:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:33:46,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:33:46,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:33:46,395 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 06:33:46,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:33:46,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:33:46,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482481550] [2023-11-29 06:33:46,396 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:33:46,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995750444] [2023-11-29 06:33:46,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995750444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:33:46,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:33:46,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:33:46,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043343726] [2023-11-29 06:33:46,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:33:46,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:33:46,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:33:46,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:33:46,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:33:46,398 INFO L87 Difference]: Start difference. First operand 1846 states and 2525 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:33:46,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:33:46,882 INFO L93 Difference]: Finished difference Result 2728 states and 3764 transitions. [2023-11-29 06:33:46,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:33:46,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 101 [2023-11-29 06:33:46,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:33:46,885 INFO L225 Difference]: With dead ends: 2728 [2023-11-29 06:33:46,885 INFO L226 Difference]: Without dead ends: 1667 [2023-11-29 06:33:46,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:33:46,887 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 25 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:33:46,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 312 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:33:46,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2023-11-29 06:33:47,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1614. [2023-11-29 06:33:47,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1389 states have (on average 1.3275737940964722) internal successors, (1844), 1432 states have internal predecessors, (1844), 179 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 06:33:47,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2202 transitions. [2023-11-29 06:33:47,212 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2202 transitions. Word has length 101 [2023-11-29 06:33:47,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:33:47,212 INFO L495 AbstractCegarLoop]: Abstraction has 1614 states and 2202 transitions. [2023-11-29 06:33:47,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:33:47,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2202 transitions. [2023-11-29 06:33:47,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 06:33:47,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:33:47,213 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:33:47,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2023-11-29 06:33:47,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:47,414 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:33:47,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:33:47,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2003070382, now seen corresponding path program 1 times [2023-11-29 06:33:47,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:33:47,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405824923] [2023-11-29 06:33:47,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:47,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:33:47,420 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:33:47,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1891070245] [2023-11-29 06:33:47,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:47,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:47,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:33:47,421 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:33:47,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2023-11-29 06:33:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:33:47,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:33:47,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:33:47,587 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 6 proven. 20 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:33:47,587 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:33:47,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:33:47,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405824923] [2023-11-29 06:33:47,621 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:33:47,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891070245] [2023-11-29 06:33:47,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891070245] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:33:47,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:33:47,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:33:47,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045449408] [2023-11-29 06:33:47,622 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:33:47,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:33:47,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:33:47,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:33:47,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:33:47,623 INFO L87 Difference]: Start difference. First operand 1614 states and 2202 transitions. Second operand has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:33:48,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:33:48,756 INFO L93 Difference]: Finished difference Result 1974 states and 2608 transitions. [2023-11-29 06:33:48,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:33:48,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 103 [2023-11-29 06:33:48,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:33:48,759 INFO L225 Difference]: With dead ends: 1974 [2023-11-29 06:33:48,759 INFO L226 Difference]: Without dead ends: 1973 [2023-11-29 06:33:48,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:33:48,760 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 348 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:33:48,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 893 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:33:48,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1973 states. [2023-11-29 06:33:49,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1973 to 1726. [2023-11-29 06:33:49,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1490 states have (on average 1.3355704697986577) internal successors, (1990), 1533 states have internal predecessors, (1990), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 06:33:49,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2370 transitions. [2023-11-29 06:33:49,109 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2370 transitions. Word has length 103 [2023-11-29 06:33:49,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:33:49,109 INFO L495 AbstractCegarLoop]: Abstraction has 1726 states and 2370 transitions. [2023-11-29 06:33:49,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 06:33:49,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2370 transitions. [2023-11-29 06:33:49,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 06:33:49,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:33:49,110 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:33:49,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2023-11-29 06:33:49,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2023-11-29 06:33:49,311 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:33:49,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:33:49,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2038282266, now seen corresponding path program 1 times [2023-11-29 06:33:49,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:33:49,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477284667] [2023-11-29 06:33:49,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:49,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:33:49,317 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:33:49,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1731264944] [2023-11-29 06:33:49,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:49,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:49,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:33:49,319 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:33:49,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2023-11-29 06:33:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:33:49,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:33:49,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:33:49,448 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:33:49,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:33:49,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:33:49,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477284667] [2023-11-29 06:33:49,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:33:49,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731264944] [2023-11-29 06:33:49,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731264944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:33:49,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:33:49,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:33:49,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573354006] [2023-11-29 06:33:49,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:33:49,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:33:49,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:33:49,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:33:49,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:33:49,451 INFO L87 Difference]: Start difference. First operand 1726 states and 2370 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 06:33:49,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:33:49,917 INFO L93 Difference]: Finished difference Result 1742 states and 2370 transitions. [2023-11-29 06:33:49,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:33:49,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 105 [2023-11-29 06:33:49,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:33:49,920 INFO L225 Difference]: With dead ends: 1742 [2023-11-29 06:33:49,920 INFO L226 Difference]: Without dead ends: 1741 [2023-11-29 06:33:49,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:33:49,921 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 25 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:33:49,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 393 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:33:49,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2023-11-29 06:33:50,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1725. [2023-11-29 06:33:50,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1490 states have (on average 1.3281879194630872) internal successors, (1979), 1532 states have internal predecessors, (1979), 190 states have call successors, (190), 2 states have call predecessors, (190), 2 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2023-11-29 06:33:50,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2359 transitions. [2023-11-29 06:33:50,296 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2359 transitions. Word has length 105 [2023-11-29 06:33:50,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:33:50,297 INFO L495 AbstractCegarLoop]: Abstraction has 1725 states and 2359 transitions. [2023-11-29 06:33:50,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 06:33:50,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2359 transitions. [2023-11-29 06:33:50,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 06:33:50,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:33:50,298 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:33:50,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2023-11-29 06:33:50,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2023-11-29 06:33:50,498 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:33:50,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:33:50,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1237757488, now seen corresponding path program 1 times [2023-11-29 06:33:50,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:33:50,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142688988] [2023-11-29 06:33:50,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:50,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:33:50,504 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:33:50,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1606442221] [2023-11-29 06:33:50,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:50,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:50,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:33:50,506 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:33:50,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2023-11-29 06:33:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:33:50,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:33:50,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:33:50,620 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:33:50,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:33:50,708 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:33:50,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:33:50,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142688988] [2023-11-29 06:33:50,708 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:33:50,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606442221] [2023-11-29 06:33:50,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606442221] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:33:50,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:33:50,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 06:33:50,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774150429] [2023-11-29 06:33:50,709 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:33:50,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:33:50,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:33:50,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:33:50,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:33:50,710 INFO L87 Difference]: Start difference. First operand 1725 states and 2359 transitions. Second operand has 6 states, 5 states have (on average 22.6) internal successors, (113), 6 states have internal predecessors, (113), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:33:51,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:33:51,520 INFO L93 Difference]: Finished difference Result 2729 states and 3769 transitions. [2023-11-29 06:33:51,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:33:51,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 6 states have internal predecessors, (113), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 106 [2023-11-29 06:33:51,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:33:51,523 INFO L225 Difference]: With dead ends: 2729 [2023-11-29 06:33:51,523 INFO L226 Difference]: Without dead ends: 2728 [2023-11-29 06:33:51,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:33:51,524 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 115 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:33:51,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 472 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:33:51,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2023-11-29 06:33:52,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 2571. [2023-11-29 06:33:52,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 2224 states have (on average 1.3556654676258992) internal successors, (3015), 2266 states have internal predecessors, (3015), 302 states have call successors, (302), 2 states have call predecessors, (302), 2 states have return successors, (302), 302 states have call predecessors, (302), 302 states have call successors, (302) [2023-11-29 06:33:52,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 3619 transitions. [2023-11-29 06:33:52,102 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 3619 transitions. Word has length 106 [2023-11-29 06:33:52,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:33:52,102 INFO L495 AbstractCegarLoop]: Abstraction has 2571 states and 3619 transitions. [2023-11-29 06:33:52,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 6 states have internal predecessors, (113), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:33:52,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 3619 transitions. [2023-11-29 06:33:52,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 06:33:52,103 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:33:52,103 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:33:52,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2023-11-29 06:33:52,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2023-11-29 06:33:52,304 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:33:52,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:33:52,304 INFO L85 PathProgramCache]: Analyzing trace with hash 148184037, now seen corresponding path program 1 times [2023-11-29 06:33:52,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:33:52,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576663037] [2023-11-29 06:33:52,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:52,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:33:52,311 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:33:52,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1164173205] [2023-11-29 06:33:52,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:52,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:52,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:33:52,312 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:33:52,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2023-11-29 06:33:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:33:52,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 06:33:52,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:33:53,227 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 06:33:53,228 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:33:53,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:33:53,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576663037] [2023-11-29 06:33:53,552 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:33:53,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164173205] [2023-11-29 06:33:53,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164173205] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:33:53,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:33:53,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 06:33:53,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574768139] [2023-11-29 06:33:53,552 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:33:53,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:33:53,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:33:53,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:33:53,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:33:53,553 INFO L87 Difference]: Start difference. First operand 2571 states and 3619 transitions. Second operand has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:33:57,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:33:57,126 INFO L93 Difference]: Finished difference Result 2650 states and 3662 transitions. [2023-11-29 06:33:57,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:33:57,126 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 103 [2023-11-29 06:33:57,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:33:57,130 INFO L225 Difference]: With dead ends: 2650 [2023-11-29 06:33:57,130 INFO L226 Difference]: Without dead ends: 2649 [2023-11-29 06:33:57,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=121, Invalid=581, Unknown=0, NotChecked=0, Total=702 [2023-11-29 06:33:57,131 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 456 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:33:57,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 957 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1568 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 06:33:57,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2649 states. [2023-11-29 06:33:57,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2649 to 2571. [2023-11-29 06:33:57,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 2224 states have (on average 1.3511690647482015) internal successors, (3005), 2266 states have internal predecessors, (3005), 302 states have call successors, (302), 2 states have call predecessors, (302), 2 states have return successors, (302), 302 states have call predecessors, (302), 302 states have call successors, (302) [2023-11-29 06:33:57,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 3609 transitions. [2023-11-29 06:33:57,707 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 3609 transitions. Word has length 103 [2023-11-29 06:33:57,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:33:57,708 INFO L495 AbstractCegarLoop]: Abstraction has 2571 states and 3609 transitions. [2023-11-29 06:33:57,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:33:57,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 3609 transitions. [2023-11-29 06:33:57,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 06:33:57,709 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:33:57,709 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:33:57,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2023-11-29 06:33:57,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:57,909 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:33:57,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:33:57,909 INFO L85 PathProgramCache]: Analyzing trace with hash 298737940, now seen corresponding path program 1 times [2023-11-29 06:33:57,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:33:57,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907984259] [2023-11-29 06:33:57,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:57,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:33:57,914 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:33:57,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1149813547] [2023-11-29 06:33:57,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:57,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:57,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:33:57,916 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:33:57,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2023-11-29 06:33:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:33:57,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 06:33:57,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:33:59,695 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 06:33:59,695 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:34:01,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:34:01,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907984259] [2023-11-29 06:34:01,282 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:34:01,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149813547] [2023-11-29 06:34:01,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149813547] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:34:01,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:34:01,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 06:34:01,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945791092] [2023-11-29 06:34:01,283 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:34:01,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:34:01,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:34:01,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:34:01,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=282, Unknown=1, NotChecked=0, Total=342 [2023-11-29 06:34:01,284 INFO L87 Difference]: Start difference. First operand 2571 states and 3609 transitions. Second operand has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:34:04,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:34:04,522 INFO L93 Difference]: Finished difference Result 2649 states and 3652 transitions. [2023-11-29 06:34:04,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:34:04,523 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 104 [2023-11-29 06:34:04,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:34:04,526 INFO L225 Difference]: With dead ends: 2649 [2023-11-29 06:34:04,526 INFO L226 Difference]: Without dead ends: 2648 [2023-11-29 06:34:04,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=113, Invalid=536, Unknown=1, NotChecked=0, Total=650 [2023-11-29 06:34:04,526 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 454 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 1727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:34:04,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 957 Invalid, 1727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 06:34:04,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2648 states. [2023-11-29 06:34:05,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2648 to 2571. [2023-11-29 06:34:05,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 2224 states have (on average 1.3466726618705036) internal successors, (2995), 2266 states have internal predecessors, (2995), 302 states have call successors, (302), 2 states have call predecessors, (302), 2 states have return successors, (302), 302 states have call predecessors, (302), 302 states have call successors, (302) [2023-11-29 06:34:05,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 3599 transitions. [2023-11-29 06:34:05,088 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 3599 transitions. Word has length 104 [2023-11-29 06:34:05,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:34:05,089 INFO L495 AbstractCegarLoop]: Abstraction has 2571 states and 3599 transitions. [2023-11-29 06:34:05,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:34:05,089 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 3599 transitions. [2023-11-29 06:34:05,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 06:34:05,090 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:34:05,090 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:34:05,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2023-11-29 06:34:05,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2023-11-29 06:34:05,290 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:34:05,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:34:05,291 INFO L85 PathProgramCache]: Analyzing trace with hash 219490672, now seen corresponding path program 1 times [2023-11-29 06:34:05,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:34:05,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844034906] [2023-11-29 06:34:05,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:05,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:34:05,297 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:34:05,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1487512221] [2023-11-29 06:34:05,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:05,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:05,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:34:05,298 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:34:05,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2023-11-29 06:34:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:34:05,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:34:05,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:34:05,501 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:34:05,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:34:05,607 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:34:05,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:34:05,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844034906] [2023-11-29 06:34:05,608 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:34:05,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487512221] [2023-11-29 06:34:05,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487512221] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:34:05,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:34:05,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:34:05,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226417158] [2023-11-29 06:34:05,608 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:34:05,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:34:05,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:34:05,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:34:05,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:34:05,610 INFO L87 Difference]: Start difference. First operand 2571 states and 3599 transitions. Second operand has 8 states, 7 states have (on average 17.0) internal successors, (119), 8 states have internal predecessors, (119), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:34:07,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:34:07,290 INFO L93 Difference]: Finished difference Result 3916 states and 5389 transitions. [2023-11-29 06:34:07,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:34:07,291 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.0) internal successors, (119), 8 states have internal predecessors, (119), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 108 [2023-11-29 06:34:07,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:34:07,296 INFO L225 Difference]: With dead ends: 3916 [2023-11-29 06:34:07,296 INFO L226 Difference]: Without dead ends: 3915 [2023-11-29 06:34:07,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:34:07,297 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 550 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:34:07,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 470 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:34:07,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3915 states. [2023-11-29 06:34:07,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3915 to 3049. [2023-11-29 06:34:07,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3049 states, 2646 states have (on average 1.341647770219199) internal successors, (3550), 2688 states have internal predecessors, (3550), 358 states have call successors, (358), 2 states have call predecessors, (358), 2 states have return successors, (358), 358 states have call predecessors, (358), 358 states have call successors, (358) [2023-11-29 06:34:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 4266 transitions. [2023-11-29 06:34:07,990 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 4266 transitions. Word has length 108 [2023-11-29 06:34:07,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:34:07,990 INFO L495 AbstractCegarLoop]: Abstraction has 3049 states and 4266 transitions. [2023-11-29 06:34:07,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.0) internal successors, (119), 8 states have internal predecessors, (119), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:34:07,991 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 4266 transitions. [2023-11-29 06:34:07,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 06:34:07,991 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:34:07,991 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:34:07,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2023-11-29 06:34:08,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:08,192 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:34:08,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:34:08,192 INFO L85 PathProgramCache]: Analyzing trace with hash 670941639, now seen corresponding path program 1 times [2023-11-29 06:34:08,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:34:08,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058395870] [2023-11-29 06:34:08,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:08,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:34:08,197 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:34:08,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [218491014] [2023-11-29 06:34:08,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:08,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:08,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:34:08,199 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:34:08,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2023-11-29 06:34:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:34:08,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 06:34:08,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:34:09,234 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 06:34:09,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:34:10,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:34:10,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058395870] [2023-11-29 06:34:10,257 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:34:10,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218491014] [2023-11-29 06:34:10,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218491014] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:34:10,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:34:10,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 06:34:10,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640528423] [2023-11-29 06:34:10,257 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:34:10,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:34:10,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:34:10,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:34:10,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=317, Unknown=1, NotChecked=0, Total=380 [2023-11-29 06:34:10,258 INFO L87 Difference]: Start difference. First operand 3049 states and 4266 transitions. Second operand has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 15 states have internal predecessors, (76), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:34:13,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:34:13,740 INFO L93 Difference]: Finished difference Result 3148 states and 4339 transitions. [2023-11-29 06:34:13,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:34:13,740 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 15 states have internal predecessors, (76), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 105 [2023-11-29 06:34:13,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:34:13,744 INFO L225 Difference]: With dead ends: 3148 [2023-11-29 06:34:13,744 INFO L226 Difference]: Without dead ends: 3147 [2023-11-29 06:34:13,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=102, Invalid=497, Unknown=1, NotChecked=0, Total=600 [2023-11-29 06:34:13,745 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 450 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:34:13,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 970 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 06:34:13,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3147 states. [2023-11-29 06:34:14,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3147 to 3049. [2023-11-29 06:34:14,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3049 states, 2646 states have (on average 1.3371126228269086) internal successors, (3538), 2688 states have internal predecessors, (3538), 358 states have call successors, (358), 2 states have call predecessors, (358), 2 states have return successors, (358), 358 states have call predecessors, (358), 358 states have call successors, (358) [2023-11-29 06:34:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 4254 transitions. [2023-11-29 06:34:14,432 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 4254 transitions. Word has length 105 [2023-11-29 06:34:14,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:34:14,433 INFO L495 AbstractCegarLoop]: Abstraction has 3049 states and 4254 transitions. [2023-11-29 06:34:14,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 15 states have internal predecessors, (76), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:34:14,433 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 4254 transitions. [2023-11-29 06:34:14,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 06:34:14,433 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:34:14,434 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:34:14,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Forceful destruction successful, exit code 0 [2023-11-29 06:34:14,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:14,634 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:34:14,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:34:14,635 INFO L85 PathProgramCache]: Analyzing trace with hash -675645578, now seen corresponding path program 1 times [2023-11-29 06:34:14,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:34:14,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348838959] [2023-11-29 06:34:14,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:14,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:34:14,640 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:34:14,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [45624375] [2023-11-29 06:34:14,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:14,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:14,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:34:14,641 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:34:14,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2023-11-29 06:34:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:34:14,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 06:34:14,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:34:15,606 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 06:34:15,606 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:34:17,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:34:17,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348838959] [2023-11-29 06:34:17,666 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:34:17,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45624375] [2023-11-29 06:34:17,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45624375] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:34:17,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:34:17,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 06:34:17,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788268976] [2023-11-29 06:34:17,667 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:34:17,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:34:17,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:34:17,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:34:17,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=311, Unknown=1, NotChecked=0, Total=380 [2023-11-29 06:34:17,668 INFO L87 Difference]: Start difference. First operand 3049 states and 4254 transitions. Second operand has 15 states, 14 states have (on average 5.5) internal successors, (77), 15 states have internal predecessors, (77), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:34:20,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:34:20,544 INFO L93 Difference]: Finished difference Result 3147 states and 4327 transitions. [2023-11-29 06:34:20,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:34:20,544 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.5) internal successors, (77), 15 states have internal predecessors, (77), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 106 [2023-11-29 06:34:20,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:34:20,547 INFO L225 Difference]: With dead ends: 3147 [2023-11-29 06:34:20,548 INFO L226 Difference]: Without dead ends: 3146 [2023-11-29 06:34:20,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=117, Invalid=532, Unknown=1, NotChecked=0, Total=650 [2023-11-29 06:34:20,548 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 505 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:34:20,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 850 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1568 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 06:34:20,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2023-11-29 06:34:21,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 3049. [2023-11-29 06:34:21,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3049 states, 2646 states have (on average 1.3325774754346182) internal successors, (3526), 2688 states have internal predecessors, (3526), 358 states have call successors, (358), 2 states have call predecessors, (358), 2 states have return successors, (358), 358 states have call predecessors, (358), 358 states have call successors, (358) [2023-11-29 06:34:21,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 4242 transitions. [2023-11-29 06:34:21,273 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 4242 transitions. Word has length 106 [2023-11-29 06:34:21,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:34:21,273 INFO L495 AbstractCegarLoop]: Abstraction has 3049 states and 4242 transitions. [2023-11-29 06:34:21,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.5) internal successors, (77), 15 states have internal predecessors, (77), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:34:21,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 4242 transitions. [2023-11-29 06:34:21,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 06:34:21,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:34:21,274 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:34:21,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2023-11-29 06:34:21,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:21,474 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:34:21,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:34:21,475 INFO L85 PathProgramCache]: Analyzing trace with hash 529823657, now seen corresponding path program 1 times [2023-11-29 06:34:21,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:34:21,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846376273] [2023-11-29 06:34:21,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:21,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:34:21,480 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:34:21,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1871526992] [2023-11-29 06:34:21,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:21,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:21,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:34:21,481 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:34:21,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2023-11-29 06:34:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:34:21,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 06:34:21,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:34:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 06:34:22,379 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:34:22,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:34:22,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846376273] [2023-11-29 06:34:22,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:34:22,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871526992] [2023-11-29 06:34:22,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871526992] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:34:22,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:34:22,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 06:34:22,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857836002] [2023-11-29 06:34:22,457 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:34:22,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:34:22,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:34:22,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:34:22,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:34:22,458 INFO L87 Difference]: Start difference. First operand 3049 states and 4242 transitions. Second operand has 15 states, 14 states have (on average 5.571428571428571) internal successors, (78), 15 states have internal predecessors, (78), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:34:25,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:34:25,175 INFO L93 Difference]: Finished difference Result 3146 states and 4315 transitions. [2023-11-29 06:34:25,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:34:25,176 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.571428571428571) internal successors, (78), 15 states have internal predecessors, (78), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 107 [2023-11-29 06:34:25,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:34:25,179 INFO L225 Difference]: With dead ends: 3146 [2023-11-29 06:34:25,179 INFO L226 Difference]: Without dead ends: 3145 [2023-11-29 06:34:25,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:34:25,180 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 357 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:34:25,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 1066 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 06:34:25,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3145 states. [2023-11-29 06:34:25,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3145 to 3049. [2023-11-29 06:34:25,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3049 states, 2646 states have (on average 1.3280423280423281) internal successors, (3514), 2688 states have internal predecessors, (3514), 358 states have call successors, (358), 2 states have call predecessors, (358), 2 states have return successors, (358), 358 states have call predecessors, (358), 358 states have call successors, (358) [2023-11-29 06:34:25,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 4230 transitions. [2023-11-29 06:34:25,877 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 4230 transitions. Word has length 107 [2023-11-29 06:34:25,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:34:25,877 INFO L495 AbstractCegarLoop]: Abstraction has 3049 states and 4230 transitions. [2023-11-29 06:34:25,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.571428571428571) internal successors, (78), 15 states have internal predecessors, (78), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:34:25,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 4230 transitions. [2023-11-29 06:34:25,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 06:34:25,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:34:25,878 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:34:25,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2023-11-29 06:34:26,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:26,079 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:34:26,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:34:26,079 INFO L85 PathProgramCache]: Analyzing trace with hash -944711055, now seen corresponding path program 1 times [2023-11-29 06:34:26,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:34:26,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952141203] [2023-11-29 06:34:26,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:26,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:34:26,084 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:34:26,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [275372305] [2023-11-29 06:34:26,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:26,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:26,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:34:26,085 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:34:26,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2023-11-29 06:34:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:34:26,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:34:26,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:34:26,269 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 06:34:26,269 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:34:26,408 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 06:34:26,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:34:26,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952141203] [2023-11-29 06:34:26,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:34:26,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275372305] [2023-11-29 06:34:26,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275372305] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:34:26,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:34:26,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2023-11-29 06:34:26,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790140501] [2023-11-29 06:34:26,409 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:34:26,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:34:26,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:34:26,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:34:26,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:34:26,410 INFO L87 Difference]: Start difference. First operand 3049 states and 4230 transitions. Second operand has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 06:34:29,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:34:29,192 INFO L93 Difference]: Finished difference Result 3425 states and 4656 transitions. [2023-11-29 06:34:29,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 06:34:29,193 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 110 [2023-11-29 06:34:29,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:34:29,196 INFO L225 Difference]: With dead ends: 3425 [2023-11-29 06:34:29,196 INFO L226 Difference]: Without dead ends: 3424 [2023-11-29 06:34:29,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=380, Invalid=1102, Unknown=0, NotChecked=0, Total=1482 [2023-11-29 06:34:29,197 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 805 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:34:29,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1050 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:34:29,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3424 states. [2023-11-29 06:34:29,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3424 to 3269. [2023-11-29 06:34:29,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3269 states, 2838 states have (on average 1.3414376321353065) internal successors, (3807), 2880 states have internal predecessors, (3807), 386 states have call successors, (386), 2 states have call predecessors, (386), 2 states have return successors, (386), 386 states have call predecessors, (386), 386 states have call successors, (386) [2023-11-29 06:34:29,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3269 states to 3269 states and 4579 transitions. [2023-11-29 06:34:29,977 INFO L78 Accepts]: Start accepts. Automaton has 3269 states and 4579 transitions. Word has length 110 [2023-11-29 06:34:29,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:34:29,977 INFO L495 AbstractCegarLoop]: Abstraction has 3269 states and 4579 transitions. [2023-11-29 06:34:29,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 06:34:29,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3269 states and 4579 transitions. [2023-11-29 06:34:29,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 06:34:29,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:34:29,978 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:34:29,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Forceful destruction successful, exit code 0 [2023-11-29 06:34:30,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:30,179 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:34:30,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:34:30,179 INFO L85 PathProgramCache]: Analyzing trace with hash -755335720, now seen corresponding path program 2 times [2023-11-29 06:34:30,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:34:30,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415236373] [2023-11-29 06:34:30,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:30,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:34:30,186 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:34:30,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [381247539] [2023-11-29 06:34:30,187 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:34:30,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:30,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:34:30,188 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:34:30,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2023-11-29 06:34:30,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:34:30,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:34:30,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-29 06:34:30,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:34:31,112 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 06:34:31,113 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:34:31,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:34:31,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415236373] [2023-11-29 06:34:31,336 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:34:31,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381247539] [2023-11-29 06:34:31,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381247539] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:34:31,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:34:31,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 06:34:31,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303918648] [2023-11-29 06:34:31,337 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:34:31,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:34:31,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:34:31,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:34:31,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:34:31,338 INFO L87 Difference]: Start difference. First operand 3269 states and 4579 transitions. Second operand has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:34:34,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:34:34,330 INFO L93 Difference]: Finished difference Result 3347 states and 4626 transitions. [2023-11-29 06:34:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 06:34:34,331 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 108 [2023-11-29 06:34:34,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:34:34,334 INFO L225 Difference]: With dead ends: 3347 [2023-11-29 06:34:34,334 INFO L226 Difference]: Without dead ends: 3346 [2023-11-29 06:34:34,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2023-11-29 06:34:34,335 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 501 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:34:34,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 989 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 06:34:34,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3346 states. [2023-11-29 06:34:35,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3346 to 3269. [2023-11-29 06:34:35,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3269 states, 2838 states have (on average 1.3410852713178294) internal successors, (3806), 2880 states have internal predecessors, (3806), 386 states have call successors, (386), 2 states have call predecessors, (386), 2 states have return successors, (386), 386 states have call predecessors, (386), 386 states have call successors, (386) [2023-11-29 06:34:35,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3269 states to 3269 states and 4578 transitions. [2023-11-29 06:34:35,102 INFO L78 Accepts]: Start accepts. Automaton has 3269 states and 4578 transitions. Word has length 108 [2023-11-29 06:34:35,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:34:35,103 INFO L495 AbstractCegarLoop]: Abstraction has 3269 states and 4578 transitions. [2023-11-29 06:34:35,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:34:35,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3269 states and 4578 transitions. [2023-11-29 06:34:35,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 06:34:35,103 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:34:35,104 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:34:35,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2023-11-29 06:34:35,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:35,304 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:34:35,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:34:35,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1209575993, now seen corresponding path program 1 times [2023-11-29 06:34:35,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:34:35,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727339470] [2023-11-29 06:34:35,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:35,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:34:35,310 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:34:35,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1556802932] [2023-11-29 06:34:35,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:35,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:35,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:34:35,311 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:34:35,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2023-11-29 06:34:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:34:35,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:34:35,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:34:35,455 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:34:35,455 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:34:35,580 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:34:35,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:34:35,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727339470] [2023-11-29 06:34:35,581 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:34:35,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556802932] [2023-11-29 06:34:35,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556802932] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:34:35,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:34:35,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 06:34:35,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956999235] [2023-11-29 06:34:35,582 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:34:35,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:34:35,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:34:35,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:34:35,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:34:35,583 INFO L87 Difference]: Start difference. First operand 3269 states and 4578 transitions. Second operand has 14 states, 13 states have (on average 10.615384615384615) internal successors, (138), 14 states have internal predecessors, (138), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 06:34:37,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:34:37,431 INFO L93 Difference]: Finished difference Result 3466 states and 4701 transitions. [2023-11-29 06:34:37,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:34:37,432 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.615384615384615) internal successors, (138), 14 states have internal predecessors, (138), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 116 [2023-11-29 06:34:37,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:34:37,435 INFO L225 Difference]: With dead ends: 3466 [2023-11-29 06:34:37,435 INFO L226 Difference]: Without dead ends: 3465 [2023-11-29 06:34:37,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=559, Unknown=0, NotChecked=0, Total=812 [2023-11-29 06:34:37,436 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 1298 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:34:37,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 443 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:34:37,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2023-11-29 06:34:38,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3269. [2023-11-29 06:34:38,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3269 states, 2838 states have (on average 1.3238195912614517) internal successors, (3757), 2880 states have internal predecessors, (3757), 386 states have call successors, (386), 2 states have call predecessors, (386), 2 states have return successors, (386), 386 states have call predecessors, (386), 386 states have call successors, (386) [2023-11-29 06:34:38,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3269 states to 3269 states and 4529 transitions. [2023-11-29 06:34:38,238 INFO L78 Accepts]: Start accepts. Automaton has 3269 states and 4529 transitions. Word has length 116 [2023-11-29 06:34:38,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:34:38,239 INFO L495 AbstractCegarLoop]: Abstraction has 3269 states and 4529 transitions. [2023-11-29 06:34:38,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.615384615384615) internal successors, (138), 14 states have internal predecessors, (138), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 06:34:38,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3269 states and 4529 transitions. [2023-11-29 06:34:38,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 06:34:38,239 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:34:38,240 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:34:38,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2023-11-29 06:34:38,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:38,440 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:34:38,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:34:38,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1271388984, now seen corresponding path program 1 times [2023-11-29 06:34:38,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:34:38,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377427571] [2023-11-29 06:34:38,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:38,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:34:38,447 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:34:38,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942725754] [2023-11-29 06:34:38,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:38,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:38,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:34:38,449 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:34:38,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2023-11-29 06:34:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:34:38,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:34:38,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:34:38,579 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:34:38,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:34:38,704 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:34:38,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:34:38,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377427571] [2023-11-29 06:34:38,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:34:38,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942725754] [2023-11-29 06:34:38,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942725754] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:34:38,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:34:38,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 06:34:38,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628959877] [2023-11-29 06:34:38,705 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:34:38,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:34:38,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:34:38,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:34:38,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:34:38,707 INFO L87 Difference]: Start difference. First operand 3269 states and 4529 transitions. Second operand has 10 states, 9 states have (on average 15.0) internal successors, (135), 10 states have internal predecessors, (135), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:34:40,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:34:40,603 INFO L93 Difference]: Finished difference Result 4543 states and 6196 transitions. [2023-11-29 06:34:40,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-29 06:34:40,603 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.0) internal successors, (135), 10 states have internal predecessors, (135), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 117 [2023-11-29 06:34:40,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:34:40,607 INFO L225 Difference]: With dead ends: 4543 [2023-11-29 06:34:40,608 INFO L226 Difference]: Without dead ends: 4542 [2023-11-29 06:34:40,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=313, Invalid=877, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 06:34:40,609 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 700 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:34:40,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 1314 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:34:40,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4542 states. [2023-11-29 06:34:41,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4542 to 4132. [2023-11-29 06:34:41,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4132 states, 3605 states have (on average 1.336754507628294) internal successors, (4819), 3647 states have internal predecessors, (4819), 482 states have call successors, (482), 2 states have call predecessors, (482), 2 states have return successors, (482), 482 states have call predecessors, (482), 482 states have call successors, (482) [2023-11-29 06:34:41,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4132 states to 4132 states and 5783 transitions. [2023-11-29 06:34:41,643 INFO L78 Accepts]: Start accepts. Automaton has 4132 states and 5783 transitions. Word has length 117 [2023-11-29 06:34:41,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:34:41,644 INFO L495 AbstractCegarLoop]: Abstraction has 4132 states and 5783 transitions. [2023-11-29 06:34:41,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.0) internal successors, (135), 10 states have internal predecessors, (135), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:34:41,644 INFO L276 IsEmpty]: Start isEmpty. Operand 4132 states and 5783 transitions. [2023-11-29 06:34:41,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 06:34:41,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:34:41,645 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:34:41,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2023-11-29 06:34:41,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:41,845 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:34:41,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:34:41,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1727774909, now seen corresponding path program 1 times [2023-11-29 06:34:41,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:34:41,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601428931] [2023-11-29 06:34:41,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:41,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:34:41,852 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:34:41,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [864074873] [2023-11-29 06:34:41,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:41,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:41,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:34:41,853 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:34:41,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2023-11-29 06:34:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:34:41,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:34:41,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:34:42,161 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:34:42,161 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:34:42,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:34:42,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601428931] [2023-11-29 06:34:42,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:34:42,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864074873] [2023-11-29 06:34:42,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864074873] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:34:42,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:34:42,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:34:42,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877150444] [2023-11-29 06:34:42,221 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:34:42,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:34:42,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:34:42,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:34:42,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:34:42,222 INFO L87 Difference]: Start difference. First operand 4132 states and 5783 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:34:43,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:34:43,455 INFO L93 Difference]: Finished difference Result 4325 states and 6005 transitions. [2023-11-29 06:34:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:34:43,456 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 117 [2023-11-29 06:34:43,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:34:43,460 INFO L225 Difference]: With dead ends: 4325 [2023-11-29 06:34:43,460 INFO L226 Difference]: Without dead ends: 4324 [2023-11-29 06:34:43,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:34:43,461 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 147 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:34:43,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 442 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:34:43,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4324 states. [2023-11-29 06:34:44,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4324 to 4139. [2023-11-29 06:34:44,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4139 states, 3612 states have (on average 1.3361018826135105) internal successors, (4826), 3654 states have internal predecessors, (4826), 482 states have call successors, (482), 2 states have call predecessors, (482), 2 states have return successors, (482), 482 states have call predecessors, (482), 482 states have call successors, (482) [2023-11-29 06:34:44,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 5790 transitions. [2023-11-29 06:34:44,672 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 5790 transitions. Word has length 117 [2023-11-29 06:34:44,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:34:44,673 INFO L495 AbstractCegarLoop]: Abstraction has 4139 states and 5790 transitions. [2023-11-29 06:34:44,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:34:44,673 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 5790 transitions. [2023-11-29 06:34:44,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-29 06:34:44,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:34:44,674 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:34:44,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Forceful destruction successful, exit code 0 [2023-11-29 06:34:44,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2023-11-29 06:34:44,874 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:34:44,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:34:44,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1962939537, now seen corresponding path program 1 times [2023-11-29 06:34:44,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:34:44,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184725106] [2023-11-29 06:34:44,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:44,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:34:44,881 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:34:44,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [29957001] [2023-11-29 06:34:44,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:44,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:44,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:34:44,882 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:34:44,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2023-11-29 06:34:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:34:44,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:34:44,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:34:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:34:45,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:34:45,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:34:45,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184725106] [2023-11-29 06:34:45,643 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:34:45,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29957001] [2023-11-29 06:34:45,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29957001] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:34:45,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:34:45,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:34:45,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889065491] [2023-11-29 06:34:45,644 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:34:45,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:34:45,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:34:45,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:34:45,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:34:45,645 INFO L87 Difference]: Start difference. First operand 4139 states and 5790 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 9 states have internal predecessors, (81), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:34:48,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:34:48,350 INFO L93 Difference]: Finished difference Result 4226 states and 5844 transitions. [2023-11-29 06:34:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:34:48,351 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 9 states have internal predecessors, (81), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 125 [2023-11-29 06:34:48,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:34:48,355 INFO L225 Difference]: With dead ends: 4226 [2023-11-29 06:34:48,355 INFO L226 Difference]: Without dead ends: 4224 [2023-11-29 06:34:48,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:34:48,356 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 274 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:34:48,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 595 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:34:48,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4224 states. [2023-11-29 06:34:49,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4224 to 4141. [2023-11-29 06:34:49,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4141 states, 3614 states have (on average 1.329551743220808) internal successors, (4805), 3656 states have internal predecessors, (4805), 482 states have call successors, (482), 2 states have call predecessors, (482), 2 states have return successors, (482), 482 states have call predecessors, (482), 482 states have call successors, (482) [2023-11-29 06:34:49,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4141 states to 4141 states and 5769 transitions. [2023-11-29 06:34:49,419 INFO L78 Accepts]: Start accepts. Automaton has 4141 states and 5769 transitions. Word has length 125 [2023-11-29 06:34:49,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:34:49,419 INFO L495 AbstractCegarLoop]: Abstraction has 4141 states and 5769 transitions. [2023-11-29 06:34:49,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 9 states have internal predecessors, (81), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:34:49,419 INFO L276 IsEmpty]: Start isEmpty. Operand 4141 states and 5769 transitions. [2023-11-29 06:34:49,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-29 06:34:49,420 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:34:49,420 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:34:49,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2023-11-29 06:34:49,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2023-11-29 06:34:49,621 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:34:49,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:34:49,621 INFO L85 PathProgramCache]: Analyzing trace with hash 721583579, now seen corresponding path program 1 times [2023-11-29 06:34:49,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:34:49,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470399224] [2023-11-29 06:34:49,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:49,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:34:49,627 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:34:49,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1252455828] [2023-11-29 06:34:49,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:49,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:49,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:34:49,628 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:34:49,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2023-11-29 06:34:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:34:49,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:34:49,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:34:50,154 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 28 proven. 12 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:34:50,154 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:34:50,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:34:50,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470399224] [2023-11-29 06:34:50,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:34:50,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252455828] [2023-11-29 06:34:50,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252455828] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:34:50,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:34:50,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:34:50,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625732713] [2023-11-29 06:34:50,854 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:34:50,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:34:50,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:34:50,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:34:50,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:34:50,856 INFO L87 Difference]: Start difference. First operand 4141 states and 5769 transitions. Second operand has 9 states, 8 states have (on average 10.25) internal successors, (82), 9 states have internal predecessors, (82), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:34:53,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:34:53,921 INFO L93 Difference]: Finished difference Result 4224 states and 5819 transitions. [2023-11-29 06:34:53,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:34:53,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 9 states have internal predecessors, (82), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 126 [2023-11-29 06:34:53,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:34:53,926 INFO L225 Difference]: With dead ends: 4224 [2023-11-29 06:34:53,926 INFO L226 Difference]: Without dead ends: 4222 [2023-11-29 06:34:53,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:34:53,927 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 246 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:34:53,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 600 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:34:53,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4222 states. [2023-11-29 06:34:54,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4222 to 4142. [2023-11-29 06:34:54,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4142 states, 3615 states have (on average 1.3289073305670815) internal successors, (4804), 3657 states have internal predecessors, (4804), 482 states have call successors, (482), 2 states have call predecessors, (482), 2 states have return successors, (482), 482 states have call predecessors, (482), 482 states have call successors, (482) [2023-11-29 06:34:54,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4142 states to 4142 states and 5768 transitions. [2023-11-29 06:34:54,892 INFO L78 Accepts]: Start accepts. Automaton has 4142 states and 5768 transitions. Word has length 126 [2023-11-29 06:34:54,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:34:54,892 INFO L495 AbstractCegarLoop]: Abstraction has 4142 states and 5768 transitions. [2023-11-29 06:34:54,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 9 states have internal predecessors, (82), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:34:54,892 INFO L276 IsEmpty]: Start isEmpty. Operand 4142 states and 5768 transitions. [2023-11-29 06:34:54,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 06:34:54,893 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:34:54,893 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:34:54,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Ended with exit code 0 [2023-11-29 06:34:55,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2023-11-29 06:34:55,094 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:34:55,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:34:55,094 INFO L85 PathProgramCache]: Analyzing trace with hash -2013368722, now seen corresponding path program 1 times [2023-11-29 06:34:55,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:34:55,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967805600] [2023-11-29 06:34:55,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:55,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:34:55,100 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:34:55,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602454429] [2023-11-29 06:34:55,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:34:55,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:34:55,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:34:55,101 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:34:55,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2023-11-29 06:34:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:34:55,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:34:55,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:34:56,253 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:34:56,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:34:57,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:34:57,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967805600] [2023-11-29 06:34:57,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:34:57,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602454429] [2023-11-29 06:34:57,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602454429] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:34:57,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:34:57,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 06:34:57,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347255892] [2023-11-29 06:34:57,060 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:34:57,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:34:57,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:34:57,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:34:57,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:34:57,061 INFO L87 Difference]: Start difference. First operand 4142 states and 5768 transitions. Second operand has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 14 states have internal predecessors, (83), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:35:00,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:35:00,652 INFO L93 Difference]: Finished difference Result 4782 states and 6580 transitions. [2023-11-29 06:35:00,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:35:00,653 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 14 states have internal predecessors, (83), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 127 [2023-11-29 06:35:00,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:35:00,658 INFO L225 Difference]: With dead ends: 4782 [2023-11-29 06:35:00,658 INFO L226 Difference]: Without dead ends: 4781 [2023-11-29 06:35:00,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=151, Invalid=841, Unknown=0, NotChecked=0, Total=992 [2023-11-29 06:35:00,659 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 331 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 1618 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:35:00,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 1037 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1618 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 06:35:00,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4781 states. [2023-11-29 06:35:01,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4781 to 4152. [2023-11-29 06:35:01,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4152 states, 3625 states have (on average 1.3282758620689654) internal successors, (4815), 3667 states have internal predecessors, (4815), 482 states have call successors, (482), 2 states have call predecessors, (482), 2 states have return successors, (482), 482 states have call predecessors, (482), 482 states have call successors, (482) [2023-11-29 06:35:01,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4152 states to 4152 states and 5779 transitions. [2023-11-29 06:35:01,655 INFO L78 Accepts]: Start accepts. Automaton has 4152 states and 5779 transitions. Word has length 127 [2023-11-29 06:35:01,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:35:01,656 INFO L495 AbstractCegarLoop]: Abstraction has 4152 states and 5779 transitions. [2023-11-29 06:35:01,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 14 states have internal predecessors, (83), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:35:01,656 INFO L276 IsEmpty]: Start isEmpty. Operand 4152 states and 5779 transitions. [2023-11-29 06:35:01,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 06:35:01,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:35:01,657 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:35:01,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Forceful destruction successful, exit code 0 [2023-11-29 06:35:01,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2023-11-29 06:35:01,857 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:35:01,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:35:01,858 INFO L85 PathProgramCache]: Analyzing trace with hash 385163029, now seen corresponding path program 1 times [2023-11-29 06:35:01,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:35:01,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099759383] [2023-11-29 06:35:01,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:35:01,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:35:01,863 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:35:01,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1194393769] [2023-11-29 06:35:01,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:35:01,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:35:01,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:35:01,864 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:35:01,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2023-11-29 06:35:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:35:01,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 06:35:01,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:35:04,623 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 43 proven. 24 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-11-29 06:35:04,623 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:35:06,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:35:06,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099759383] [2023-11-29 06:35:06,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:35:06,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194393769] [2023-11-29 06:35:06,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194393769] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:35:06,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:35:06,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 06:35:06,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44640286] [2023-11-29 06:35:06,236 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:35:06,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:35:06,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:35:06,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:35:06,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:35:06,237 INFO L87 Difference]: Start difference. First operand 4152 states and 5779 transitions. Second operand has 13 states, 12 states have (on average 7.333333333333333) internal successors, (88), 13 states have internal predecessors, (88), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:35:22,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:35:22,528 INFO L93 Difference]: Finished difference Result 4219 states and 5813 transitions. [2023-11-29 06:35:22,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:35:22,529 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.333333333333333) internal successors, (88), 13 states have internal predecessors, (88), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 129 [2023-11-29 06:35:22,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:35:22,533 INFO L225 Difference]: With dead ends: 4219 [2023-11-29 06:35:22,533 INFO L226 Difference]: Without dead ends: 4218 [2023-11-29 06:35:22,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=124, Invalid=632, Unknown=0, NotChecked=0, Total=756 [2023-11-29 06:35:22,534 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 215 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:35:22,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 780 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2023-11-29 06:35:22,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4218 states. [2023-11-29 06:35:23,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4218 to 4152. [2023-11-29 06:35:23,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4152 states, 3625 states have (on average 1.321655172413793) internal successors, (4791), 3667 states have internal predecessors, (4791), 482 states have call successors, (482), 2 states have call predecessors, (482), 2 states have return successors, (482), 482 states have call predecessors, (482), 482 states have call successors, (482) [2023-11-29 06:35:23,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4152 states to 4152 states and 5755 transitions. [2023-11-29 06:35:23,528 INFO L78 Accepts]: Start accepts. Automaton has 4152 states and 5755 transitions. Word has length 129 [2023-11-29 06:35:23,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:35:23,529 INFO L495 AbstractCegarLoop]: Abstraction has 4152 states and 5755 transitions. [2023-11-29 06:35:23,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.333333333333333) internal successors, (88), 13 states have internal predecessors, (88), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:35:23,529 INFO L276 IsEmpty]: Start isEmpty. Operand 4152 states and 5755 transitions. [2023-11-29 06:35:23,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 06:35:23,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:35:23,530 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:35:23,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2023-11-29 06:35:23,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2023-11-29 06:35:23,730 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:35:23,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:35:23,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1049132635, now seen corresponding path program 1 times [2023-11-29 06:35:23,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:35:23,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324100980] [2023-11-29 06:35:23,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:35:23,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:35:23,736 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:35:23,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1610790209] [2023-11-29 06:35:23,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:35:23,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:35:23,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:35:23,737 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:35:23,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2023-11-29 06:35:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:35:23,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:35:23,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:35:24,197 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:35:24,197 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:35:24,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:35:24,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324100980] [2023-11-29 06:35:24,577 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:35:24,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610790209] [2023-11-29 06:35:24,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610790209] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:35:24,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:35:24,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:35:24,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053989071] [2023-11-29 06:35:24,578 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:35:24,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:35:24,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:35:24,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:35:24,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:35:24,579 INFO L87 Difference]: Start difference. First operand 4152 states and 5755 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:35:27,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:35:27,348 INFO L93 Difference]: Finished difference Result 4231 states and 5803 transitions. [2023-11-29 06:35:27,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:35:27,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 130 [2023-11-29 06:35:27,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:35:27,353 INFO L225 Difference]: With dead ends: 4231 [2023-11-29 06:35:27,353 INFO L226 Difference]: Without dead ends: 4230 [2023-11-29 06:35:27,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:35:27,353 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 133 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:35:27,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 769 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:35:27,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4230 states. [2023-11-29 06:35:28,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4230 to 4144. [2023-11-29 06:35:28,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4144 states, 3617 states have (on average 1.3220901299419408) internal successors, (4782), 3659 states have internal predecessors, (4782), 482 states have call successors, (482), 2 states have call predecessors, (482), 2 states have return successors, (482), 482 states have call predecessors, (482), 482 states have call successors, (482) [2023-11-29 06:35:28,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4144 states to 4144 states and 5746 transitions. [2023-11-29 06:35:28,328 INFO L78 Accepts]: Start accepts. Automaton has 4144 states and 5746 transitions. Word has length 130 [2023-11-29 06:35:28,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:35:28,328 INFO L495 AbstractCegarLoop]: Abstraction has 4144 states and 5746 transitions. [2023-11-29 06:35:28,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:35:28,329 INFO L276 IsEmpty]: Start isEmpty. Operand 4144 states and 5746 transitions. [2023-11-29 06:35:28,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 06:35:28,329 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:35:28,329 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:35:28,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Ended with exit code 0 [2023-11-29 06:35:28,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2023-11-29 06:35:28,530 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:35:28,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:35:28,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1044088776, now seen corresponding path program 2 times [2023-11-29 06:35:28,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:35:28,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746259181] [2023-11-29 06:35:28,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:35:28,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:35:28,536 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:35:28,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [138227731] [2023-11-29 06:35:28,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:35:28,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:35:28,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:35:28,537 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:35:28,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2023-11-29 06:35:28,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:35:28,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:35:28,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:35:28,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:35:31,529 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~s~0#1_142| Int) (|v_ULTIMATE.start_main_~k~0#1_186| Int)) (let ((.cse0 (* |v_ULTIMATE.start_main_~s~0#1_142| |v_ULTIMATE.start_main_~k~0#1_186|))) (and (<= 0 (+ .cse0 |c_ULTIMATE.start_main_~s~0#1|)) (<= .cse0 9223372036854775807)))) is different from true [2023-11-29 06:35:31,950 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 118 trivial. 2 not checked. [2023-11-29 06:35:31,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:35:41,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:35:41,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746259181] [2023-11-29 06:35:41,486 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:35:41,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138227731] [2023-11-29 06:35:41,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138227731] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:35:41,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:35:41,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:35:41,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799769216] [2023-11-29 06:35:41,487 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:35:41,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:35:41,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:35:41,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:35:41,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=4, NotChecked=26, Total=240 [2023-11-29 06:35:41,488 INFO L87 Difference]: Start difference. First operand 4144 states and 5746 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:35:44,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:35:48,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:35:49,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:35:49,324 INFO L93 Difference]: Finished difference Result 4178 states and 5756 transitions. [2023-11-29 06:35:49,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:35:49,325 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 131 [2023-11-29 06:35:49,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:35:49,329 INFO L225 Difference]: With dead ends: 4178 [2023-11-29 06:35:49,329 INFO L226 Difference]: Without dead ends: 4177 [2023-11-29 06:35:49,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=4, NotChecked=28, Total=272 [2023-11-29 06:35:49,330 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 65 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 306 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:35:49,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 742 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 419 Invalid, 2 Unknown, 306 Unchecked, 6.8s Time] [2023-11-29 06:35:49,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4177 states. [2023-11-29 06:35:50,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4177 to 4144. [2023-11-29 06:35:50,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4144 states, 3617 states have (on average 1.3218136577273984) internal successors, (4781), 3659 states have internal predecessors, (4781), 482 states have call successors, (482), 2 states have call predecessors, (482), 2 states have return successors, (482), 482 states have call predecessors, (482), 482 states have call successors, (482) [2023-11-29 06:35:50,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4144 states to 4144 states and 5745 transitions. [2023-11-29 06:35:50,332 INFO L78 Accepts]: Start accepts. Automaton has 4144 states and 5745 transitions. Word has length 131 [2023-11-29 06:35:50,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:35:50,332 INFO L495 AbstractCegarLoop]: Abstraction has 4144 states and 5745 transitions. [2023-11-29 06:35:50,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:35:50,332 INFO L276 IsEmpty]: Start isEmpty. Operand 4144 states and 5745 transitions. [2023-11-29 06:35:50,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 06:35:50,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:35:50,333 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:35:50,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Ended with exit code 0 [2023-11-29 06:35:50,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2023-11-29 06:35:50,534 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:35:50,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:35:50,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1836626866, now seen corresponding path program 1 times [2023-11-29 06:35:50,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:35:50,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32789916] [2023-11-29 06:35:50,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:35:50,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:35:50,540 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:35:50,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1492438016] [2023-11-29 06:35:50,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:35:50,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:35:50,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:35:50,541 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:35:50,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2023-11-29 06:35:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:35:50,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-29 06:35:50,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:35:51,653 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 24 proven. 42 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 06:35:51,653 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:35:52,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:35:52,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32789916] [2023-11-29 06:35:52,192 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:35:52,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492438016] [2023-11-29 06:35:52,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492438016] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:35:52,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:35:52,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 06:35:52,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265892026] [2023-11-29 06:35:52,193 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:35:52,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:35:52,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:35:52,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:35:52,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:35:52,194 INFO L87 Difference]: Start difference. First operand 4144 states and 5745 transitions. Second operand has 15 states, 14 states have (on average 6.428571428571429) internal successors, (90), 15 states have internal predecessors, (90), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:35:55,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:35:55,206 INFO L93 Difference]: Finished difference Result 4754 states and 6513 transitions. [2023-11-29 06:35:55,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 06:35:55,207 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.428571428571429) internal successors, (90), 15 states have internal predecessors, (90), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 131 [2023-11-29 06:35:55,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:35:55,212 INFO L225 Difference]: With dead ends: 4754 [2023-11-29 06:35:55,212 INFO L226 Difference]: Without dead ends: 4753 [2023-11-29 06:35:55,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2023-11-29 06:35:55,213 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 302 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 1990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:35:55,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 848 Invalid, 1990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 06:35:55,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4753 states. [2023-11-29 06:35:56,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4753 to 4148. [2023-11-29 06:35:56,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4148 states, 3621 states have (on average 1.3214581607290803) internal successors, (4785), 3663 states have internal predecessors, (4785), 482 states have call successors, (482), 2 states have call predecessors, (482), 2 states have return successors, (482), 482 states have call predecessors, (482), 482 states have call successors, (482) [2023-11-29 06:35:56,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4148 states to 4148 states and 5749 transitions. [2023-11-29 06:35:56,220 INFO L78 Accepts]: Start accepts. Automaton has 4148 states and 5749 transitions. Word has length 131 [2023-11-29 06:35:56,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:35:56,221 INFO L495 AbstractCegarLoop]: Abstraction has 4148 states and 5749 transitions. [2023-11-29 06:35:56,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.428571428571429) internal successors, (90), 15 states have internal predecessors, (90), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:35:56,221 INFO L276 IsEmpty]: Start isEmpty. Operand 4148 states and 5749 transitions. [2023-11-29 06:35:56,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 06:35:56,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:35:56,221 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:35:56,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Ended with exit code 0 [2023-11-29 06:35:56,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2023-11-29 06:35:56,422 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:35:56,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:35:56,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1992986156, now seen corresponding path program 2 times [2023-11-29 06:35:56,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:35:56,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746411600] [2023-11-29 06:35:56,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:35:56,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:35:56,428 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:35:56,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [101298860] [2023-11-29 06:35:56,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:35:56,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:35:56,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:35:56,429 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:35:56,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2023-11-29 06:35:56,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:35:56,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:35:56,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:35:56,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:35:56,908 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 2 proven. 49 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:35:56,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:35:56,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:35:56,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746411600] [2023-11-29 06:35:56,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:35:56,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101298860] [2023-11-29 06:35:56,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101298860] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:35:56,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:35:56,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:35:56,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281071735] [2023-11-29 06:35:56,993 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:35:56,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:35:56,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:35:56,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:35:56,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:35:56,994 INFO L87 Difference]: Start difference. First operand 4148 states and 5749 transitions. Second operand has 11 states, 10 states have (on average 8.8) internal successors, (88), 11 states have internal predecessors, (88), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:35:58,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:35:58,585 INFO L93 Difference]: Finished difference Result 4228 states and 5810 transitions. [2023-11-29 06:35:58,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:35:58,585 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.8) internal successors, (88), 11 states have internal predecessors, (88), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 132 [2023-11-29 06:35:58,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:35:58,589 INFO L225 Difference]: With dead ends: 4228 [2023-11-29 06:35:58,589 INFO L226 Difference]: Without dead ends: 4227 [2023-11-29 06:35:58,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:35:58,590 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 211 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:35:58,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 659 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:35:58,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4227 states. [2023-11-29 06:35:59,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4227 to 4188. [2023-11-29 06:35:59,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4188 states, 3661 states have (on average 1.3193116634799236) internal successors, (4830), 3703 states have internal predecessors, (4830), 482 states have call successors, (482), 2 states have call predecessors, (482), 2 states have return successors, (482), 482 states have call predecessors, (482), 482 states have call successors, (482) [2023-11-29 06:35:59,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4188 states to 4188 states and 5794 transitions. [2023-11-29 06:35:59,597 INFO L78 Accepts]: Start accepts. Automaton has 4188 states and 5794 transitions. Word has length 132 [2023-11-29 06:35:59,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:35:59,597 INFO L495 AbstractCegarLoop]: Abstraction has 4188 states and 5794 transitions. [2023-11-29 06:35:59,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.8) internal successors, (88), 11 states have internal predecessors, (88), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:35:59,598 INFO L276 IsEmpty]: Start isEmpty. Operand 4188 states and 5794 transitions. [2023-11-29 06:35:59,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 06:35:59,598 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:35:59,599 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:35:59,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Ended with exit code 0 [2023-11-29 06:35:59,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2023-11-29 06:35:59,799 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:35:59,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:35:59,799 INFO L85 PathProgramCache]: Analyzing trace with hash 162474733, now seen corresponding path program 1 times [2023-11-29 06:35:59,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:35:59,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998658729] [2023-11-29 06:35:59,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:35:59,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:35:59,808 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:35:59,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [371938811] [2023-11-29 06:35:59,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:35:59,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:35:59,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:35:59,809 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:35:59,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2023-11-29 06:35:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:35:59,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:35:59,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:00,228 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 2 proven. 58 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-29 06:36:00,228 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:36:00,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:36:00,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998658729] [2023-11-29 06:36:00,383 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:36:00,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371938811] [2023-11-29 06:36:00,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371938811] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:36:00,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:36:00,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:36:00,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129449748] [2023-11-29 06:36:00,384 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:36:00,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:36:00,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:36:00,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:36:00,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:36:00,385 INFO L87 Difference]: Start difference. First operand 4188 states and 5794 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:36:02,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:36:02,610 INFO L93 Difference]: Finished difference Result 6646 states and 9224 transitions. [2023-11-29 06:36:02,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:36:02,611 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 134 [2023-11-29 06:36:02,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:36:02,617 INFO L225 Difference]: With dead ends: 6646 [2023-11-29 06:36:02,617 INFO L226 Difference]: Without dead ends: 6644 [2023-11-29 06:36:02,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2023-11-29 06:36:02,619 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 308 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:36:02,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 1033 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:36:02,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6644 states. [2023-11-29 06:36:04,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6644 to 6376. [2023-11-29 06:36:04,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6376 states, 5569 states have (on average 1.3217812892799425) internal successors, (7361), 5611 states have internal predecessors, (7361), 762 states have call successors, (762), 2 states have call predecessors, (762), 2 states have return successors, (762), 762 states have call predecessors, (762), 762 states have call successors, (762) [2023-11-29 06:36:04,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6376 states to 6376 states and 8885 transitions. [2023-11-29 06:36:04,232 INFO L78 Accepts]: Start accepts. Automaton has 6376 states and 8885 transitions. Word has length 134 [2023-11-29 06:36:04,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:36:04,232 INFO L495 AbstractCegarLoop]: Abstraction has 6376 states and 8885 transitions. [2023-11-29 06:36:04,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:36:04,233 INFO L276 IsEmpty]: Start isEmpty. Operand 6376 states and 8885 transitions. [2023-11-29 06:36:04,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 06:36:04,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:36:04,234 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:36:04,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Ended with exit code 0 [2023-11-29 06:36:04,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2023-11-29 06:36:04,434 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:36:04,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:04,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1100858183, now seen corresponding path program 1 times [2023-11-29 06:36:04,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:04,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250089648] [2023-11-29 06:36:04,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:04,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:04,443 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:36:04,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [48524535] [2023-11-29 06:36:04,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:04,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:36:04,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:04,444 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:36:04,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2023-11-29 06:36:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:04,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:36:04,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:05,538 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:36:05,538 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:36:06,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:36:06,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250089648] [2023-11-29 06:36:06,186 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:36:06,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48524535] [2023-11-29 06:36:06,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48524535] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:36:06,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:36:06,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 06:36:06,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266426500] [2023-11-29 06:36:06,187 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:36:06,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:36:06,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:36:06,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:36:06,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:36:06,188 INFO L87 Difference]: Start difference. First operand 6376 states and 8885 transitions. Second operand has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 14 states have internal predecessors, (88), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:36:09,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:36:09,401 INFO L93 Difference]: Finished difference Result 7178 states and 9912 transitions. [2023-11-29 06:36:09,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:36:09,402 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 14 states have internal predecessors, (88), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 132 [2023-11-29 06:36:09,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:36:09,412 INFO L225 Difference]: With dead ends: 7178 [2023-11-29 06:36:09,412 INFO L226 Difference]: Without dead ends: 7176 [2023-11-29 06:36:09,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2023-11-29 06:36:09,413 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 401 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:36:09,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 482 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 06:36:09,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7176 states. [2023-11-29 06:36:11,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7176 to 6390. [2023-11-29 06:36:11,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6390 states, 5582 states have (on average 1.3210318882121104) internal successors, (7374), 5624 states have internal predecessors, (7374), 763 states have call successors, (763), 2 states have call predecessors, (763), 2 states have return successors, (763), 763 states have call predecessors, (763), 763 states have call successors, (763) [2023-11-29 06:36:11,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6390 states to 6390 states and 8900 transitions. [2023-11-29 06:36:11,056 INFO L78 Accepts]: Start accepts. Automaton has 6390 states and 8900 transitions. Word has length 132 [2023-11-29 06:36:11,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:36:11,056 INFO L495 AbstractCegarLoop]: Abstraction has 6390 states and 8900 transitions. [2023-11-29 06:36:11,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 14 states have internal predecessors, (88), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:36:11,056 INFO L276 IsEmpty]: Start isEmpty. Operand 6390 states and 8900 transitions. [2023-11-29 06:36:11,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 06:36:11,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:36:11,057 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:36:11,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Ended with exit code 0 [2023-11-29 06:36:11,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:36:11,258 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:36:11,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:11,258 INFO L85 PathProgramCache]: Analyzing trace with hash 741749529, now seen corresponding path program 1 times [2023-11-29 06:36:11,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:11,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814940195] [2023-11-29 06:36:11,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:11,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:11,264 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:36:11,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1748134168] [2023-11-29 06:36:11,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:11,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:36:11,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:11,265 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:36:11,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2023-11-29 06:36:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:11,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:36:11,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:11,843 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-29 06:36:11,843 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:36:12,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:36:12,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814940195] [2023-11-29 06:36:12,275 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:36:12,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748134168] [2023-11-29 06:36:12,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748134168] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:36:12,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:36:12,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:36:12,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535764538] [2023-11-29 06:36:12,275 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:36:12,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:36:12,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:36:12,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:36:12,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:36:12,276 INFO L87 Difference]: Start difference. First operand 6390 states and 8900 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 12 states have internal predecessors, (81), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:36:15,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:36:15,593 INFO L93 Difference]: Finished difference Result 6511 states and 9031 transitions. [2023-11-29 06:36:15,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:36:15,594 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 12 states have internal predecessors, (81), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 135 [2023-11-29 06:36:15,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:36:15,602 INFO L225 Difference]: With dead ends: 6511 [2023-11-29 06:36:15,602 INFO L226 Difference]: Without dead ends: 6509 [2023-11-29 06:36:15,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=161, Invalid=595, Unknown=0, NotChecked=0, Total=756 [2023-11-29 06:36:15,603 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 437 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:36:15,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 460 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:36:15,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6509 states. [2023-11-29 06:36:17,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6509 to 6482. [2023-11-29 06:36:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6482 states, 5662 states have (on average 1.3179088661250442) internal successors, (7462), 5704 states have internal predecessors, (7462), 775 states have call successors, (775), 2 states have call predecessors, (775), 2 states have return successors, (775), 775 states have call predecessors, (775), 775 states have call successors, (775) [2023-11-29 06:36:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6482 states to 6482 states and 9012 transitions. [2023-11-29 06:36:17,347 INFO L78 Accepts]: Start accepts. Automaton has 6482 states and 9012 transitions. Word has length 135 [2023-11-29 06:36:17,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:36:17,348 INFO L495 AbstractCegarLoop]: Abstraction has 6482 states and 9012 transitions. [2023-11-29 06:36:17,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 12 states have internal predecessors, (81), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:36:17,348 INFO L276 IsEmpty]: Start isEmpty. Operand 6482 states and 9012 transitions. [2023-11-29 06:36:17,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 06:36:17,349 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:36:17,349 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:36:17,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Ended with exit code 0 [2023-11-29 06:36:17,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:36:17,549 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:36:17,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:17,550 INFO L85 PathProgramCache]: Analyzing trace with hash -233134508, now seen corresponding path program 1 times [2023-11-29 06:36:17,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:17,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866634841] [2023-11-29 06:36:17,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:17,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:17,557 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:36:17,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1526497058] [2023-11-29 06:36:17,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:17,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:36:17,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:17,558 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:36:17,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2023-11-29 06:36:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:17,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:36:17,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:18,848 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:36:18,848 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:36:20,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:36:20,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866634841] [2023-11-29 06:36:20,552 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:36:20,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526497058] [2023-11-29 06:36:20,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526497058] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:36:20,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:36:20,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 06:36:20,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967272927] [2023-11-29 06:36:20,552 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:36:20,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:36:20,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:36:20,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:36:20,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:36:20,553 INFO L87 Difference]: Start difference. First operand 6482 states and 9012 transitions. Second operand has 14 states, 13 states have (on average 6.846153846153846) internal successors, (89), 14 states have internal predecessors, (89), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:36:26,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:36:26,608 INFO L93 Difference]: Finished difference Result 6585 states and 9090 transitions. [2023-11-29 06:36:26,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 06:36:26,609 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.846153846153846) internal successors, (89), 14 states have internal predecessors, (89), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 133 [2023-11-29 06:36:26,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:36:26,616 INFO L225 Difference]: With dead ends: 6585 [2023-11-29 06:36:26,616 INFO L226 Difference]: Without dead ends: 6583 [2023-11-29 06:36:26,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2023-11-29 06:36:26,618 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 273 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:36:26,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 733 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1490 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-29 06:36:26,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6583 states. [2023-11-29 06:36:28,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6583 to 6494. [2023-11-29 06:36:28,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6494 states, 5674 states have (on average 1.3110680296087416) internal successors, (7439), 5716 states have internal predecessors, (7439), 775 states have call successors, (775), 2 states have call predecessors, (775), 2 states have return successors, (775), 775 states have call predecessors, (775), 775 states have call successors, (775) [2023-11-29 06:36:28,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6494 states to 6494 states and 8989 transitions. [2023-11-29 06:36:28,263 INFO L78 Accepts]: Start accepts. Automaton has 6494 states and 8989 transitions. Word has length 133 [2023-11-29 06:36:28,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:36:28,263 INFO L495 AbstractCegarLoop]: Abstraction has 6494 states and 8989 transitions. [2023-11-29 06:36:28,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.846153846153846) internal successors, (89), 14 states have internal predecessors, (89), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 06:36:28,264 INFO L276 IsEmpty]: Start isEmpty. Operand 6494 states and 8989 transitions. [2023-11-29 06:36:28,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 06:36:28,264 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:36:28,264 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:36:28,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Ended with exit code 0 [2023-11-29 06:36:28,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:36:28,465 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:36:28,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:28,465 INFO L85 PathProgramCache]: Analyzing trace with hash 295723158, now seen corresponding path program 2 times [2023-11-29 06:36:28,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:28,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446627008] [2023-11-29 06:36:28,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:28,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:28,472 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:36:28,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [400206026] [2023-11-29 06:36:28,473 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:36:28,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:36:28,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:28,474 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:36:28,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2023-11-29 06:36:28,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:36:28,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:36:28,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 06:36:28,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:29,118 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:36:29,118 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:36:29,435 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:36:29,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:36:29,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446627008] [2023-11-29 06:36:29,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:36:29,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400206026] [2023-11-29 06:36:29,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400206026] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:36:29,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:36:29,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-11-29 06:36:29,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590640555] [2023-11-29 06:36:29,436 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:36:29,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 06:36:29,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:36:29,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 06:36:29,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:36:29,437 INFO L87 Difference]: Start difference. First operand 6494 states and 8989 transitions. Second operand has 22 states, 21 states have (on average 8.238095238095237) internal successors, (173), 22 states have internal predecessors, (173), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:36:39,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:36:39,364 INFO L93 Difference]: Finished difference Result 9612 states and 13312 transitions. [2023-11-29 06:36:39,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-29 06:36:39,365 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 8.238095238095237) internal successors, (173), 22 states have internal predecessors, (173), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 134 [2023-11-29 06:36:39,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:36:39,375 INFO L225 Difference]: With dead ends: 9612 [2023-11-29 06:36:39,375 INFO L226 Difference]: Without dead ends: 9611 [2023-11-29 06:36:39,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=562, Invalid=2194, Unknown=0, NotChecked=0, Total=2756 [2023-11-29 06:36:39,377 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 1678 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 1849 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1686 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 1849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:36:39,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1686 Valid, 1383 Invalid, 2042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 1849 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-29 06:36:39,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9611 states. [2023-11-29 06:36:41,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9611 to 6662. [2023-11-29 06:36:41,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6662 states, 5827 states have (on average 1.3114810365539729) internal successors, (7642), 5869 states have internal predecessors, (7642), 790 states have call successors, (790), 2 states have call predecessors, (790), 2 states have return successors, (790), 790 states have call predecessors, (790), 790 states have call successors, (790) [2023-11-29 06:36:41,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6662 states to 6662 states and 9222 transitions. [2023-11-29 06:36:41,124 INFO L78 Accepts]: Start accepts. Automaton has 6662 states and 9222 transitions. Word has length 134 [2023-11-29 06:36:41,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:36:41,124 INFO L495 AbstractCegarLoop]: Abstraction has 6662 states and 9222 transitions. [2023-11-29 06:36:41,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 8.238095238095237) internal successors, (173), 22 states have internal predecessors, (173), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 06:36:41,124 INFO L276 IsEmpty]: Start isEmpty. Operand 6662 states and 9222 transitions. [2023-11-29 06:36:41,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-29 06:36:41,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:36:41,125 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:36:41,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Forceful destruction successful, exit code 0 [2023-11-29 06:36:41,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2023-11-29 06:36:41,325 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:36:41,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:41,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1519399023, now seen corresponding path program 1 times [2023-11-29 06:36:41,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:41,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979788892] [2023-11-29 06:36:41,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:41,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:41,331 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:36:41,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [393616794] [2023-11-29 06:36:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:41,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:36:41,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:41,333 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:36:41,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2023-11-29 06:36:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:41,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:36:41,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:41,548 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 2 proven. 62 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-29 06:36:41,548 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:36:41,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:36:41,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979788892] [2023-11-29 06:36:41,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:36:41,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393616794] [2023-11-29 06:36:41,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393616794] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:36:41,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:36:41,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:36:41,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150598455] [2023-11-29 06:36:41,639 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:36:41,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:36:41,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:36:41,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:36:41,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:36:41,640 INFO L87 Difference]: Start difference. First operand 6662 states and 9222 transitions. Second operand has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:36:43,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:36:43,331 INFO L93 Difference]: Finished difference Result 10507 states and 14651 transitions. [2023-11-29 06:36:43,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:36:43,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 136 [2023-11-29 06:36:43,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:36:43,337 INFO L225 Difference]: With dead ends: 10507 [2023-11-29 06:36:43,337 INFO L226 Difference]: Without dead ends: 5055 [2023-11-29 06:36:43,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:36:43,345 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 121 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:36:43,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 652 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:36:43,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5055 states. [2023-11-29 06:36:44,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5055 to 4692. [2023-11-29 06:36:44,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4692 states, 4105 states have (on average 1.3030450669914737) internal successors, (5349), 4147 states have internal predecessors, (5349), 542 states have call successors, (542), 2 states have call predecessors, (542), 2 states have return successors, (542), 542 states have call predecessors, (542), 542 states have call successors, (542) [2023-11-29 06:36:44,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4692 states to 4692 states and 6433 transitions. [2023-11-29 06:36:44,572 INFO L78 Accepts]: Start accepts. Automaton has 4692 states and 6433 transitions. Word has length 136 [2023-11-29 06:36:44,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:36:44,572 INFO L495 AbstractCegarLoop]: Abstraction has 4692 states and 6433 transitions. [2023-11-29 06:36:44,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:36:44,572 INFO L276 IsEmpty]: Start isEmpty. Operand 4692 states and 6433 transitions. [2023-11-29 06:36:44,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 06:36:44,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:36:44,573 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:36:44,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Forceful destruction successful, exit code 0 [2023-11-29 06:36:44,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2023-11-29 06:36:44,773 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-29 06:36:44,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:44,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1362765033, now seen corresponding path program 1 times [2023-11-29 06:36:44,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:44,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771079794] [2023-11-29 06:36:44,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:44,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:44,779 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:36:44,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720185030] [2023-11-29 06:36:44,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:44,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:36:44,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:44,781 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:36:44,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18f6020d-db07-4971-b86c-5b63edf061e2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Waiting until timeout for monitored process [2023-11-29 06:36:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:44,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-29 06:36:44,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:46,872 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 15 proven. 36 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-11-29 06:36:46,872 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:36:56,828 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 15 proven. 36 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-11-29 06:36:56,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:36:56,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771079794] [2023-11-29 06:36:56,829 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:36:56,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720185030] [2023-11-29 06:36:56,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720185030] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:36:56,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:36:56,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2023-11-29 06:36:56,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452775294] [2023-11-29 06:36:56,829 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:36:56,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-29 06:36:56,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:36:56,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-29 06:36:56,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=821, Unknown=0, NotChecked=0, Total=930 [2023-11-29 06:36:56,830 INFO L87 Difference]: Start difference. First operand 4692 states and 6433 transitions. Second operand has 31 states, 30 states have (on average 5.933333333333334) internal successors, (178), 31 states have internal predecessors, (178), 7 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2023-11-29 06:36:58,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-29 06:37:08,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:37:17,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:37:31,038 WARN L293 SmtUtils]: Spent 8.59s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:37:34,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:37:38,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:37:53,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:37:59,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:38:04,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:38:05,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:38:12,661 WARN L293 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 77 DAG size of output: 62 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:38:17,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:38:23,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:38:28,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:38:37,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:38:41,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:38:44,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:38:51,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:38:57,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.94s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:39:00,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:39:02,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:39:09,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []