./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound10.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_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/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_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/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_4688994e-cee7-4038-8231-bafae5538a78/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 357c28cbcf8a6aaf949faeabbb5ae0b19b92db6bb2faeba12cd91e7c958ae977 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:26:19,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:26:19,206 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-28 20:26:19,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:26:19,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:26:19,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:26:19,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:26:19,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:26:19,238 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:26:19,238 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:26:19,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:26:19,239 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:26:19,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:26:19,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:26:19,241 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:26:19,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:26:19,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:26:19,242 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:26:19,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:26:19,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:26:19,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:26:19,244 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:26:19,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:26:19,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:26:19,245 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-28 20:26:19,245 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:26:19,246 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:26:19,246 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:26:19,246 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:26:19,247 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:26:19,247 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:26:19,247 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:26:19,248 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:26:19,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:26:19,248 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:26:19,249 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:26:19,249 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:26:19,249 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:26:19,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:26:19,249 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:26:19,250 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:26:19,250 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:26:19,250 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:26:19,250 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:26:19,250 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_4688994e-cee7-4038-8231-bafae5538a78/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 357c28cbcf8a6aaf949faeabbb5ae0b19b92db6bb2faeba12cd91e7c958ae977 [2023-11-28 20:26:19,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:26:19,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:26:19,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:26:19,531 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:26:19,532 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:26:19,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound10.c [2023-11-28 20:26:22,347 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:26:22,550 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:26:22,551 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound10.c [2023-11-28 20:26:22,558 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/data/e0fd4a316/114ac8a0dfb94bbe88e1ec2cae3a07ed/FLAG9f20f3db1 [2023-11-28 20:26:22,573 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/data/e0fd4a316/114ac8a0dfb94bbe88e1ec2cae3a07ed [2023-11-28 20:26:22,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:26:22,576 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:26:22,578 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:26:22,578 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:26:22,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:26:22,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:26:22" (1/1) ... [2023-11-28 20:26:22,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@517640b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:22, skipping insertion in model container [2023-11-28 20:26:22,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:26:22" (1/1) ... [2023-11-28 20:26:22,608 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:26:22,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:26:22,770 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:26:22,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:26:22,805 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:26:22,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:22 WrapperNode [2023-11-28 20:26:22,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:26:22,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:26:22,806 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:26:22,806 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:26:22,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:22" (1/1) ... [2023-11-28 20:26:22,818 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:22" (1/1) ... [2023-11-28 20:26:22,841 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 90 [2023-11-28 20:26:22,841 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:26:22,842 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:26:22,842 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:26:22,842 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:26:22,853 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:22" (1/1) ... [2023-11-28 20:26:22,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:22" (1/1) ... [2023-11-28 20:26:22,856 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:22" (1/1) ... [2023-11-28 20:26:22,870 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2023-11-28 20:26:22,870 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:22" (1/1) ... [2023-11-28 20:26:22,870 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:22" (1/1) ... [2023-11-28 20:26:22,874 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:22" (1/1) ... [2023-11-28 20:26:22,878 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:22" (1/1) ... [2023-11-28 20:26:22,879 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:22" (1/1) ... [2023-11-28 20:26:22,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:22" (1/1) ... [2023-11-28 20:26:22,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:26:22,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:26:22,883 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:26:22,883 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:26:22,884 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:22" (1/1) ... [2023-11-28 20:26:22,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:26:22,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:22,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:26:22,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:26:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:26:22,970 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-28 20:26:22,972 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-28 20:26:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:26:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-28 20:26:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:26:22,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:26:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-28 20:26:22,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-28 20:26:23,046 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:26:23,049 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:26:23,245 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:26:23,272 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:26:23,272 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-28 20:26:23,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:26:23 BoogieIcfgContainer [2023-11-28 20:26:23,273 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:26:23,276 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:26:23,277 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:26:23,280 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:26:23,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:26:22" (1/3) ... [2023-11-28 20:26:23,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67510259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:26:23, skipping insertion in model container [2023-11-28 20:26:23,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:22" (2/3) ... [2023-11-28 20:26:23,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67510259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:26:23, skipping insertion in model container [2023-11-28 20:26:23,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:26:23" (3/3) ... [2023-11-28 20:26:23,283 INFO L112 eAbstractionObserver]: Analyzing ICFG lcm1_unwindbound10.c [2023-11-28 20:26:23,303 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:26:23,303 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-28 20:26:23,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:26:23,361 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;@7bfab202, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:26:23,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-28 20:26:23,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 30 states have internal predecessors, (41), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-28 20:26:23,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-28 20:26:23,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:23,375 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:26:23,375 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:23,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:23,381 INFO L85 PathProgramCache]: Analyzing trace with hash 529971304, now seen corresponding path program 1 times [2023-11-28 20:26:23,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:23,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144380444] [2023-11-28 20:26:23,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:23,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:23,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:23,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 20:26:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-28 20:26:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:23,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-28 20:26:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:23,565 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:23,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:23,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144380444] [2023-11-28 20:26:23,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144380444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:26:23,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:26:23,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:26:23,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799976358] [2023-11-28 20:26:23,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:23,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 20:26:23,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:23,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 20:26:23,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:26:23,597 INFO L87 Difference]: Start difference. First operand has 42 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 30 states have internal predecessors, (41), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 20:26:23,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:23,624 INFO L93 Difference]: Finished difference Result 82 states and 124 transitions. [2023-11-28 20:26:23,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 20:26:23,627 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2023-11-28 20:26:23,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:23,634 INFO L225 Difference]: With dead ends: 82 [2023-11-28 20:26:23,634 INFO L226 Difference]: Without dead ends: 38 [2023-11-28 20:26:23,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:26:23,640 INFO L413 NwaCegarLoop]: 52 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, 52 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 [2023-11-28 20:26:23,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:26:23,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-28 20:26:23,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-28 20:26:23,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.434782608695652) internal successors, (33), 28 states have internal predecessors, (33), 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) [2023-11-28 20:26:23,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2023-11-28 20:26:23,683 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 24 [2023-11-28 20:26:23,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:23,684 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2023-11-28 20:26:23,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 20:26:23,684 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2023-11-28 20:26:23,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-28 20:26:23,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:23,686 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:26:23,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:26:23,687 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:23,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:23,688 INFO L85 PathProgramCache]: Analyzing trace with hash 689927656, now seen corresponding path program 1 times [2023-11-28 20:26:23,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:23,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226424344] [2023-11-28 20:26:23,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:23,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:23,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:26:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:23,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 20:26:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:23,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-28 20:26:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:23,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-28 20:26:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:23,866 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:23,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:23,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226424344] [2023-11-28 20:26:23,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226424344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:26:23,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:26:23,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:26:23,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154122602] [2023-11-28 20:26:23,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:23,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:26:23,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:23,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:26:23,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:26:23,871 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 20:26:23,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:23,924 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2023-11-28 20:26:23,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:26:23,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2023-11-28 20:26:23,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:23,926 INFO L225 Difference]: With dead ends: 44 [2023-11-28 20:26:23,926 INFO L226 Difference]: Without dead ends: 42 [2023-11-28 20:26:23,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:26:23,928 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 11 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:23,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 109 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:26:23,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-28 20:26:23,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2023-11-28 20:26:23,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 31 states have internal predecessors, (36), 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) [2023-11-28 20:26:23,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2023-11-28 20:26:23,940 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 24 [2023-11-28 20:26:23,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:23,941 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2023-11-28 20:26:23,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 20:26:23,942 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2023-11-28 20:26:23,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-28 20:26:23,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:23,943 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:26:23,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:26:23,944 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:23,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:23,944 INFO L85 PathProgramCache]: Analyzing trace with hash -254797239, now seen corresponding path program 1 times [2023-11-28 20:26:23,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:23,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105190078] [2023-11-28 20:26:23,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:23,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:23,964 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:23,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1680841418] [2023-11-28 20:26:23,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:23,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:23,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:23,976 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:23,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 20:26:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:24,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:26:24,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:24,159 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:24,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:26:24,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:24,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105190078] [2023-11-28 20:26:24,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:24,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680841418] [2023-11-28 20:26:24,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680841418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:26:24,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:26:24,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:26:24,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855333623] [2023-11-28 20:26:24,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:24,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:26:24,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:24,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:26:24,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:26:24,163 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-28 20:26:24,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:24,254 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2023-11-28 20:26:24,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 20:26:24,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2023-11-28 20:26:24,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:24,257 INFO L225 Difference]: With dead ends: 61 [2023-11-28 20:26:24,257 INFO L226 Difference]: Without dead ends: 60 [2023-11-28 20:26:24,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:26:24,259 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 30 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:24,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 134 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:26:24,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-28 20:26:24,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2023-11-28 20:26:24,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 41 states have internal predecessors, (49), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-28 20:26:24,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 67 transitions. [2023-11-28 20:26:24,270 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 67 transitions. Word has length 34 [2023-11-28 20:26:24,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:24,270 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 67 transitions. [2023-11-28 20:26:24,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-28 20:26:24,271 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 67 transitions. [2023-11-28 20:26:24,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-28 20:26:24,272 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:24,272 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:26:24,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 20:26:24,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:24,474 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:24,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:24,474 INFO L85 PathProgramCache]: Analyzing trace with hash 691220249, now seen corresponding path program 1 times [2023-11-28 20:26:24,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:24,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590632843] [2023-11-28 20:26:24,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:24,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:24,484 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:24,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [682573408] [2023-11-28 20:26:24,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:24,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:24,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:24,486 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:24,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 20:26:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:24,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:26:24,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:24,602 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:24,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:26:24,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:24,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590632843] [2023-11-28 20:26:24,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:24,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682573408] [2023-11-28 20:26:24,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682573408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:26:24,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:26:24,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:26:24,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567519755] [2023-11-28 20:26:24,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:24,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:26:24,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:24,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:26:24,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:26:24,606 INFO L87 Difference]: Start difference. First operand 54 states and 67 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-28 20:26:24,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:24,672 INFO L93 Difference]: Finished difference Result 90 states and 110 transitions. [2023-11-28 20:26:24,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 20:26:24,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2023-11-28 20:26:24,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:24,675 INFO L225 Difference]: With dead ends: 90 [2023-11-28 20:26:24,675 INFO L226 Difference]: Without dead ends: 62 [2023-11-28 20:26:24,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:26:24,677 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 8 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:24,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 140 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:26:24,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-28 20:26:24,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-28 20:26:24,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.302325581395349) internal successors, (56), 48 states have internal predecessors, (56), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-28 20:26:24,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 74 transitions. [2023-11-28 20:26:24,689 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 74 transitions. Word has length 35 [2023-11-28 20:26:24,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:24,689 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 74 transitions. [2023-11-28 20:26:24,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-28 20:26:24,689 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 74 transitions. [2023-11-28 20:26:24,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-28 20:26:24,691 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:24,691 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] [2023-11-28 20:26:24,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-28 20:26:24,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:24,892 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:24,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:24,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1149535416, now seen corresponding path program 1 times [2023-11-28 20:26:24,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:24,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948979578] [2023-11-28 20:26:24,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:24,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:24,909 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:24,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [892770383] [2023-11-28 20:26:24,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:24,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:24,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:24,911 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:24,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 20:26:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:24,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:26:24,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:25,081 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:25,081 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:26:25,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:25,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948979578] [2023-11-28 20:26:25,082 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:25,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892770383] [2023-11-28 20:26:25,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892770383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:26:25,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:26:25,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 20:26:25,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080574505] [2023-11-28 20:26:25,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:25,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:26:25,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:25,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:26:25,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:26:25,085 INFO L87 Difference]: Start difference. First operand 62 states and 74 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-28 20:26:25,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:25,216 INFO L93 Difference]: Finished difference Result 70 states and 82 transitions. [2023-11-28 20:26:25,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 20:26:25,217 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 44 [2023-11-28 20:26:25,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:25,219 INFO L225 Difference]: With dead ends: 70 [2023-11-28 20:26:25,219 INFO L226 Difference]: Without dead ends: 67 [2023-11-28 20:26:25,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:26:25,220 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 57 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:25,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 124 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:26:25,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-28 20:26:25,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2023-11-28 20:26:25,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 48 states have internal predecessors, (56), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-28 20:26:25,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2023-11-28 20:26:25,231 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 74 transitions. Word has length 44 [2023-11-28 20:26:25,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:25,231 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 74 transitions. [2023-11-28 20:26:25,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-28 20:26:25,232 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 74 transitions. [2023-11-28 20:26:25,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-28 20:26:25,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:25,233 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] [2023-11-28 20:26:25,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-28 20:26:25,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:25,436 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:25,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:25,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1275859616, now seen corresponding path program 1 times [2023-11-28 20:26:25,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:25,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123921308] [2023-11-28 20:26:25,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:25,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:25,450 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:25,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067057587] [2023-11-28 20:26:25,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:25,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:25,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:25,452 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:25,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 20:26:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:25,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:26:25,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:25,617 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:25,617 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:25,753 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-28 20:26:25,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:25,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123921308] [2023-11-28 20:26:25,753 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:25,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067057587] [2023-11-28 20:26:25,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067057587] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-28 20:26:25,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:26:25,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 13 [2023-11-28 20:26:25,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592237275] [2023-11-28 20:26:25,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:25,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:26:25,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:25,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:26:25,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:26:25,755 INFO L87 Difference]: Start difference. First operand 63 states and 74 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-28 20:26:25,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:25,875 INFO L93 Difference]: Finished difference Result 77 states and 89 transitions. [2023-11-28 20:26:25,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 20:26:25,875 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 45 [2023-11-28 20:26:25,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:25,877 INFO L225 Difference]: With dead ends: 77 [2023-11-28 20:26:25,877 INFO L226 Difference]: Without dead ends: 76 [2023-11-28 20:26:25,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2023-11-28 20:26:25,878 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 33 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:25,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 162 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:26:25,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-28 20:26:25,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72. [2023-11-28 20:26:25,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 55 states have internal predecessors, (64), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-28 20:26:25,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2023-11-28 20:26:25,889 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 45 [2023-11-28 20:26:25,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:25,890 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2023-11-28 20:26:25,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-28 20:26:25,890 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2023-11-28 20:26:25,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-28 20:26:25,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:25,891 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] [2023-11-28 20:26:25,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-28 20:26:26,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:26,096 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:26,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:26,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1275897352, now seen corresponding path program 1 times [2023-11-28 20:26:26,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:26,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203573270] [2023-11-28 20:26:26,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:26,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:26,109 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:26,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2076675246] [2023-11-28 20:26:26,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:26,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:26,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:26,111 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:26,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 20:26:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:26,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:26:26,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:26,255 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:26,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:26,351 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-28 20:26:26,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:26,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203573270] [2023-11-28 20:26:26,352 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:26,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076675246] [2023-11-28 20:26:26,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076675246] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:26,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:26,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2023-11-28 20:26:26,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366411200] [2023-11-28 20:26:26,353 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:26,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-28 20:26:26,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:26,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-28 20:26:26,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:26:26,355 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 6 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-28 20:26:26,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:26,567 INFO L93 Difference]: Finished difference Result 132 states and 156 transitions. [2023-11-28 20:26:26,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-28 20:26:26,568 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 6 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 45 [2023-11-28 20:26:26,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:26,570 INFO L225 Difference]: With dead ends: 132 [2023-11-28 20:26:26,570 INFO L226 Difference]: Without dead ends: 103 [2023-11-28 20:26:26,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2023-11-28 20:26:26,571 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 70 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:26,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 217 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:26:26,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-28 20:26:26,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 95. [2023-11-28 20:26:26,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 72 states have (on average 1.1944444444444444) internal successors, (86), 74 states have internal predecessors, (86), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-28 20:26:26,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 110 transitions. [2023-11-28 20:26:26,585 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 110 transitions. Word has length 45 [2023-11-28 20:26:26,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:26,585 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 110 transitions. [2023-11-28 20:26:26,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 6 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-28 20:26:26,586 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 110 transitions. [2023-11-28 20:26:26,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-28 20:26:26,587 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:26,587 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] [2023-11-28 20:26:26,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-28 20:26:26,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:26,792 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:26,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:26,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1823196049, now seen corresponding path program 1 times [2023-11-28 20:26:26,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:26,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968544213] [2023-11-28 20:26:26,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:26,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:26,803 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:26,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2131434279] [2023-11-28 20:26:26,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:26,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:26,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:26,805 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:26,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-28 20:26:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:26,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:26:26,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:26,952 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:26,952 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:27,057 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-28 20:26:27,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:27,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968544213] [2023-11-28 20:26:27,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:27,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131434279] [2023-11-28 20:26:27,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131434279] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-28 20:26:27,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:26:27,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 14 [2023-11-28 20:26:27,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037728448] [2023-11-28 20:26:27,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:27,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:26:27,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:27,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:26:27,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:26:27,060 INFO L87 Difference]: Start difference. First operand 95 states and 110 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-28 20:26:27,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:27,187 INFO L93 Difference]: Finished difference Result 125 states and 146 transitions. [2023-11-28 20:26:27,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 20:26:27,188 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 49 [2023-11-28 20:26:27,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:27,189 INFO L225 Difference]: With dead ends: 125 [2023-11-28 20:26:27,190 INFO L226 Difference]: Without dead ends: 96 [2023-11-28 20:26:27,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2023-11-28 20:26:27,191 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 41 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:27,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 153 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:26:27,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-28 20:26:27,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-11-28 20:26:27,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 73 states have (on average 1.1917808219178083) internal successors, (87), 75 states have internal predecessors, (87), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-28 20:26:27,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2023-11-28 20:26:27,202 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 49 [2023-11-28 20:26:27,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:27,203 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2023-11-28 20:26:27,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-28 20:26:27,203 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2023-11-28 20:26:27,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-28 20:26:27,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:27,205 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2023-11-28 20:26:27,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-28 20:26:27,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-28 20:26:27,408 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:27,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:27,409 INFO L85 PathProgramCache]: Analyzing trace with hash 922590293, now seen corresponding path program 1 times [2023-11-28 20:26:27,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:27,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046142557] [2023-11-28 20:26:27,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:27,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:27,417 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:27,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1515588016] [2023-11-28 20:26:27,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:27,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:27,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:27,418 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:27,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-28 20:26:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:27,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:26:27,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:27,559 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-28 20:26:27,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:26:27,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:27,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046142557] [2023-11-28 20:26:27,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:27,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515588016] [2023-11-28 20:26:27,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515588016] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:26:27,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:26:27,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:26:27,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827823818] [2023-11-28 20:26:27,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:27,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:26:27,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:27,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:26:27,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:26:27,562 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-28 20:26:27,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:27,618 INFO L93 Difference]: Finished difference Result 167 states and 201 transitions. [2023-11-28 20:26:27,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:26:27,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 55 [2023-11-28 20:26:27,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:27,621 INFO L225 Difference]: With dead ends: 167 [2023-11-28 20:26:27,621 INFO L226 Difference]: Without dead ends: 138 [2023-11-28 20:26:27,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:26:27,622 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 28 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:27,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 156 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:26:27,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-28 20:26:27,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 120. [2023-11-28 20:26:27,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 93 states have (on average 1.2365591397849462) internal successors, (115), 95 states have internal predecessors, (115), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-28 20:26:27,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 147 transitions. [2023-11-28 20:26:27,637 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 147 transitions. Word has length 55 [2023-11-28 20:26:27,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:27,638 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 147 transitions. [2023-11-28 20:26:27,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-28 20:26:27,638 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 147 transitions. [2023-11-28 20:26:27,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-28 20:26:27,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:27,639 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2023-11-28 20:26:27,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-28 20:26:27,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-28 20:26:27,844 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:27,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:27,845 INFO L85 PathProgramCache]: Analyzing trace with hash 922691581, now seen corresponding path program 1 times [2023-11-28 20:26:27,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:27,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862127593] [2023-11-28 20:26:27,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:27,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:27,854 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:27,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1087419792] [2023-11-28 20:26:27,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:27,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:27,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:27,856 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:27,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-28 20:26:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:27,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 20:26:27,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:28,030 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:28,030 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:28,191 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-28 20:26:28,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:28,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862127593] [2023-11-28 20:26:28,192 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:28,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087419792] [2023-11-28 20:26:28,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087419792] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:28,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:28,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 17 [2023-11-28 20:26:28,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834558724] [2023-11-28 20:26:28,193 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:28,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-28 20:26:28,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:28,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-28 20:26:28,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2023-11-28 20:26:28,196 INFO L87 Difference]: Start difference. First operand 120 states and 147 transitions. Second operand has 18 states, 17 states have (on average 3.411764705882353) internal successors, (58), 18 states have internal predecessors, (58), 8 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2023-11-28 20:26:28,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:28,545 INFO L93 Difference]: Finished difference Result 242 states and 302 transitions. [2023-11-28 20:26:28,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-28 20:26:28,546 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.411764705882353) internal successors, (58), 18 states have internal predecessors, (58), 8 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 55 [2023-11-28 20:26:28,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:28,548 INFO L225 Difference]: With dead ends: 242 [2023-11-28 20:26:28,548 INFO L226 Difference]: Without dead ends: 189 [2023-11-28 20:26:28,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=935, Unknown=0, NotChecked=0, Total=1190 [2023-11-28 20:26:28,550 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 98 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:28,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 258 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:26:28,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-11-28 20:26:28,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 175. [2023-11-28 20:26:28,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 137 states have (on average 1.2043795620437956) internal successors, (165), 139 states have internal predecessors, (165), 22 states have call successors, (22), 13 states have call predecessors, (22), 13 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-28 20:26:28,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 209 transitions. [2023-11-28 20:26:28,566 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 209 transitions. Word has length 55 [2023-11-28 20:26:28,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:28,567 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 209 transitions. [2023-11-28 20:26:28,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.411764705882353) internal successors, (58), 18 states have internal predecessors, (58), 8 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2023-11-28 20:26:28,567 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 209 transitions. [2023-11-28 20:26:28,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-28 20:26:28,569 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:28,569 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2023-11-28 20:26:28,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-28 20:26:28,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-28 20:26:28,774 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:28,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:28,775 INFO L85 PathProgramCache]: Analyzing trace with hash 647425088, now seen corresponding path program 1 times [2023-11-28 20:26:28,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:28,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529801902] [2023-11-28 20:26:28,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:28,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:28,785 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:28,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1425223058] [2023-11-28 20:26:28,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:28,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:28,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:28,787 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:28,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-28 20:26:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:28,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 20:26:28,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:28,936 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:28,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:29,065 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-28 20:26:29,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:29,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529801902] [2023-11-28 20:26:29,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:29,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425223058] [2023-11-28 20:26:29,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425223058] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:29,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:29,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2023-11-28 20:26:29,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056595868] [2023-11-28 20:26:29,066 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:29,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-28 20:26:29,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:29,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-28 20:26:29,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2023-11-28 20:26:29,068 INFO L87 Difference]: Start difference. First operand 175 states and 209 transitions. Second operand has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 8 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2023-11-28 20:26:29,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:29,399 INFO L93 Difference]: Finished difference Result 296 states and 364 transitions. [2023-11-28 20:26:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-28 20:26:29,400 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 8 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 59 [2023-11-28 20:26:29,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:29,402 INFO L225 Difference]: With dead ends: 296 [2023-11-28 20:26:29,402 INFO L226 Difference]: Without dead ends: 243 [2023-11-28 20:26:29,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=282, Invalid=1050, Unknown=0, NotChecked=0, Total=1332 [2023-11-28 20:26:29,404 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 77 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:29,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 295 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:26:29,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-11-28 20:26:29,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 230. [2023-11-28 20:26:29,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 182 states have (on average 1.1703296703296704) internal successors, (213), 184 states have internal predecessors, (213), 27 states have call successors, (27), 18 states have call predecessors, (27), 18 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-28 20:26:29,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 267 transitions. [2023-11-28 20:26:29,437 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 267 transitions. Word has length 59 [2023-11-28 20:26:29,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:29,437 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 267 transitions. [2023-11-28 20:26:29,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 8 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2023-11-28 20:26:29,437 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 267 transitions. [2023-11-28 20:26:29,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-28 20:26:29,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:29,439 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2023-11-28 20:26:29,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-28 20:26:29,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:29,643 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:29,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:29,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1119170293, now seen corresponding path program 1 times [2023-11-28 20:26:29,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:29,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998518946] [2023-11-28 20:26:29,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:29,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:29,653 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:29,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [191110991] [2023-11-28 20:26:29,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:29,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:29,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:29,655 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:29,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-28 20:26:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:29,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-28 20:26:29,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:29,845 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 38 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:29,845 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:30,015 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-28 20:26:30,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:30,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998518946] [2023-11-28 20:26:30,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:30,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191110991] [2023-11-28 20:26:30,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191110991] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:30,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:30,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2023-11-28 20:26:30,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947962092] [2023-11-28 20:26:30,016 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:30,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-28 20:26:30,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:30,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-28 20:26:30,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2023-11-28 20:26:30,018 INFO L87 Difference]: Start difference. First operand 230 states and 267 transitions. Second operand has 22 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 22 states have internal predecessors, (76), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2023-11-28 20:26:30,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:30,423 INFO L93 Difference]: Finished difference Result 366 states and 435 transitions. [2023-11-28 20:26:30,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-28 20:26:30,423 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 22 states have internal predecessors, (76), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 69 [2023-11-28 20:26:30,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:30,426 INFO L225 Difference]: With dead ends: 366 [2023-11-28 20:26:30,426 INFO L226 Difference]: Without dead ends: 300 [2023-11-28 20:26:30,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=410, Invalid=1482, Unknown=0, NotChecked=0, Total=1892 [2023-11-28 20:26:30,428 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 135 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:30,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 336 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:26:30,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-11-28 20:26:30,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 276. [2023-11-28 20:26:30,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 218 states have (on average 1.1422018348623852) internal successors, (249), 221 states have internal predecessors, (249), 32 states have call successors, (32), 23 states have call predecessors, (32), 23 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-28 20:26:30,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 313 transitions. [2023-11-28 20:26:30,454 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 313 transitions. Word has length 69 [2023-11-28 20:26:30,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:30,454 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 313 transitions. [2023-11-28 20:26:30,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 22 states have internal predecessors, (76), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2023-11-28 20:26:30,454 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 313 transitions. [2023-11-28 20:26:30,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-28 20:26:30,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:30,456 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 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] [2023-11-28 20:26:30,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-28 20:26:30,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:30,656 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:30,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:30,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1521044513, now seen corresponding path program 1 times [2023-11-28 20:26:30,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:30,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274771934] [2023-11-28 20:26:30,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:30,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:30,668 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:30,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1788374119] [2023-11-28 20:26:30,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:30,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:30,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:30,669 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:30,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-28 20:26:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:30,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 20:26:30,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:30,885 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:30,885 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:31,062 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-28 20:26:31,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:31,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274771934] [2023-11-28 20:26:31,062 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:31,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788374119] [2023-11-28 20:26:31,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788374119] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:31,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:31,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 25 [2023-11-28 20:26:31,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987624566] [2023-11-28 20:26:31,063 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:31,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-28 20:26:31,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:31,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-28 20:26:31,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2023-11-28 20:26:31,066 INFO L87 Difference]: Start difference. First operand 276 states and 313 transitions. Second operand has 26 states, 25 states have (on average 3.36) internal successors, (84), 26 states have internal predecessors, (84), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) [2023-11-28 20:26:31,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:31,545 INFO L93 Difference]: Finished difference Result 399 states and 455 transitions. [2023-11-28 20:26:31,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-11-28 20:26:31,545 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.36) internal successors, (84), 26 states have internal predecessors, (84), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) Word has length 75 [2023-11-28 20:26:31,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:31,548 INFO L225 Difference]: With dead ends: 399 [2023-11-28 20:26:31,549 INFO L226 Difference]: Without dead ends: 396 [2023-11-28 20:26:31,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=542, Invalid=2214, Unknown=0, NotChecked=0, Total=2756 [2023-11-28 20:26:31,551 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 135 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:31,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 321 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:26:31,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-11-28 20:26:31,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 367. [2023-11-28 20:26:31,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 293 states have (on average 1.1433447098976108) internal successors, (335), 295 states have internal predecessors, (335), 40 states have call successors, (40), 31 states have call predecessors, (40), 31 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-28 20:26:31,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 415 transitions. [2023-11-28 20:26:31,580 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 415 transitions. Word has length 75 [2023-11-28 20:26:31,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:31,581 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 415 transitions. [2023-11-28 20:26:31,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.36) internal successors, (84), 26 states have internal predecessors, (84), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) [2023-11-28 20:26:31,581 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 415 transitions. [2023-11-28 20:26:31,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-28 20:26:31,583 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:31,583 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:26:31,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-28 20:26:31,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-28 20:26:31,783 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:31,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:31,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1835593131, now seen corresponding path program 2 times [2023-11-28 20:26:31,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:31,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103877927] [2023-11-28 20:26:31,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:31,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:31,792 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:31,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [235922463] [2023-11-28 20:26:31,793 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:26:31,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:31,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:31,794 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:31,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-28 20:26:31,850 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:26:31,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:26:31,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 20:26:31,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:31,981 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:31,981 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:32,196 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-28 20:26:32,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:32,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103877927] [2023-11-28 20:26:32,197 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:32,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235922463] [2023-11-28 20:26:32,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235922463] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:32,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:32,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 25 [2023-11-28 20:26:32,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185284172] [2023-11-28 20:26:32,197 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:32,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-28 20:26:32,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:32,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-28 20:26:32,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2023-11-28 20:26:32,199 INFO L87 Difference]: Start difference. First operand 367 states and 415 transitions. Second operand has 26 states, 25 states have (on average 3.36) internal successors, (84), 26 states have internal predecessors, (84), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) [2023-11-28 20:26:32,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:32,607 INFO L93 Difference]: Finished difference Result 499 states and 580 transitions. [2023-11-28 20:26:32,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-28 20:26:32,608 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.36) internal successors, (84), 26 states have internal predecessors, (84), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) Word has length 75 [2023-11-28 20:26:32,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:32,611 INFO L225 Difference]: With dead ends: 499 [2023-11-28 20:26:32,611 INFO L226 Difference]: Without dead ends: 446 [2023-11-28 20:26:32,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=622, Invalid=1540, Unknown=0, NotChecked=0, Total=2162 [2023-11-28 20:26:32,613 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 163 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:32,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 313 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:26:32,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2023-11-28 20:26:32,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 420. [2023-11-28 20:26:32,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 336 states have (on average 1.1517857142857142) internal successors, (387), 338 states have internal predecessors, (387), 45 states have call successors, (45), 36 states have call predecessors, (45), 36 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-28 20:26:32,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 477 transitions. [2023-11-28 20:26:32,647 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 477 transitions. Word has length 75 [2023-11-28 20:26:32,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:32,647 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 477 transitions. [2023-11-28 20:26:32,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.36) internal successors, (84), 26 states have internal predecessors, (84), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) [2023-11-28 20:26:32,648 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 477 transitions. [2023-11-28 20:26:32,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-28 20:26:32,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:32,649 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2023-11-28 20:26:32,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-28 20:26:32,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-28 20:26:32,850 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:32,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:32,851 INFO L85 PathProgramCache]: Analyzing trace with hash 311378950, now seen corresponding path program 1 times [2023-11-28 20:26:32,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:32,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476467174] [2023-11-28 20:26:32,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:32,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:32,873 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:32,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [179556531] [2023-11-28 20:26:32,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:32,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:32,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:32,878 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:32,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-28 20:26:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:33,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:26:33,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:33,113 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-11-28 20:26:33,113 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:26:33,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:33,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476467174] [2023-11-28 20:26:33,114 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:33,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179556531] [2023-11-28 20:26:33,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179556531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:26:33,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:26:33,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:26:33,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901749486] [2023-11-28 20:26:33,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:33,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:26:33,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:33,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:26:33,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:26:33,116 INFO L87 Difference]: Start difference. First operand 420 states and 477 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2023-11-28 20:26:33,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:33,164 INFO L93 Difference]: Finished difference Result 542 states and 631 transitions. [2023-11-28 20:26:33,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:26:33,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 85 [2023-11-28 20:26:33,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:33,168 INFO L225 Difference]: With dead ends: 542 [2023-11-28 20:26:33,168 INFO L226 Difference]: Without dead ends: 424 [2023-11-28 20:26:33,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:26:33,169 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 15 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:33,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 116 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:26:33,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2023-11-28 20:26:33,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 416. [2023-11-28 20:26:33,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 336 states have (on average 1.1636904761904763) internal successors, (391), 338 states have internal predecessors, (391), 44 states have call successors, (44), 33 states have call predecessors, (44), 33 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-28 20:26:33,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 479 transitions. [2023-11-28 20:26:33,201 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 479 transitions. Word has length 85 [2023-11-28 20:26:33,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:33,201 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 479 transitions. [2023-11-28 20:26:33,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2023-11-28 20:26:33,201 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 479 transitions. [2023-11-28 20:26:33,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-28 20:26:33,203 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:33,203 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2023-11-28 20:26:33,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-28 20:26:33,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:33,403 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:33,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:33,404 INFO L85 PathProgramCache]: Analyzing trace with hash 232682424, now seen corresponding path program 1 times [2023-11-28 20:26:33,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:33,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705245925] [2023-11-28 20:26:33,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:33,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:33,419 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:33,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1458561902] [2023-11-28 20:26:33,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:33,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:33,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:33,420 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:33,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-28 20:26:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:33,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-28 20:26:33,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:33,643 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:33,643 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:33,849 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-28 20:26:33,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:33,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705245925] [2023-11-28 20:26:33,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:33,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458561902] [2023-11-28 20:26:33,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458561902] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:33,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:33,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 29 [2023-11-28 20:26:33,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931134153] [2023-11-28 20:26:33,850 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:33,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-28 20:26:33,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:33,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-28 20:26:33,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=691, Unknown=0, NotChecked=0, Total=870 [2023-11-28 20:26:33,852 INFO L87 Difference]: Start difference. First operand 416 states and 479 transitions. Second operand has 30 states, 29 states have (on average 3.3448275862068964) internal successors, (97), 30 states have internal predecessors, (97), 14 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2023-11-28 20:26:34,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:34,419 INFO L93 Difference]: Finished difference Result 657 states and 783 transitions. [2023-11-28 20:26:34,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-28 20:26:34,420 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.3448275862068964) internal successors, (97), 30 states have internal predecessors, (97), 14 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) Word has length 85 [2023-11-28 20:26:34,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:34,422 INFO L225 Difference]: With dead ends: 657 [2023-11-28 20:26:34,422 INFO L226 Difference]: Without dead ends: 582 [2023-11-28 20:26:34,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 922 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=822, Invalid=3210, Unknown=0, NotChecked=0, Total=4032 [2023-11-28 20:26:34,424 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 186 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:34,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 320 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:26:34,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-11-28 20:26:34,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 537. [2023-11-28 20:26:34,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 433 states have (on average 1.1685912240184757) internal successors, (506), 435 states have internal predecessors, (506), 57 states have call successors, (57), 44 states have call predecessors, (57), 44 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-11-28 20:26:34,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 620 transitions. [2023-11-28 20:26:34,455 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 620 transitions. Word has length 85 [2023-11-28 20:26:34,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:34,456 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 620 transitions. [2023-11-28 20:26:34,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.3448275862068964) internal successors, (97), 30 states have internal predecessors, (97), 14 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2023-11-28 20:26:34,456 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 620 transitions. [2023-11-28 20:26:34,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-28 20:26:34,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:34,458 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:26:34,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-28 20:26:34,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-28 20:26:34,659 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:34,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:34,659 INFO L85 PathProgramCache]: Analyzing trace with hash -881635891, now seen corresponding path program 2 times [2023-11-28 20:26:34,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:34,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515577248] [2023-11-28 20:26:34,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:34,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:34,667 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:34,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1003729396] [2023-11-28 20:26:34,667 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:26:34,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:34,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:34,668 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:34,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-28 20:26:34,733 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:26:34,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:26:34,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-28 20:26:34,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:34,898 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 3 proven. 120 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:34,898 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:35,074 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 3 proven. 60 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-28 20:26:35,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:35,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515577248] [2023-11-28 20:26:35,075 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:35,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003729396] [2023-11-28 20:26:35,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003729396] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:35,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:35,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 24 [2023-11-28 20:26:35,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329702267] [2023-11-28 20:26:35,075 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:35,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-28 20:26:35,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:35,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-28 20:26:35,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2023-11-28 20:26:35,077 INFO L87 Difference]: Start difference. First operand 537 states and 620 transitions. Second operand has 24 states, 24 states have (on average 3.875) internal successors, (93), 24 states have internal predecessors, (93), 10 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2023-11-28 20:26:35,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:35,542 INFO L93 Difference]: Finished difference Result 674 states and 793 transitions. [2023-11-28 20:26:35,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-28 20:26:35,542 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.875) internal successors, (93), 24 states have internal predecessors, (93), 10 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) Word has length 89 [2023-11-28 20:26:35,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:35,546 INFO L225 Difference]: With dead ends: 674 [2023-11-28 20:26:35,546 INFO L226 Difference]: Without dead ends: 576 [2023-11-28 20:26:35,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 148 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=560, Invalid=1990, Unknown=0, NotChecked=0, Total=2550 [2023-11-28 20:26:35,548 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 152 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:35,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 281 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:26:35,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2023-11-28 20:26:35,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 569. [2023-11-28 20:26:35,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 461 states have (on average 1.1540130151843817) internal successors, (532), 463 states have internal predecessors, (532), 59 states have call successors, (59), 46 states have call predecessors, (59), 46 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-28 20:26:35,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 650 transitions. [2023-11-28 20:26:35,577 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 650 transitions. Word has length 89 [2023-11-28 20:26:35,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:35,577 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 650 transitions. [2023-11-28 20:26:35,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.875) internal successors, (93), 24 states have internal predecessors, (93), 10 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2023-11-28 20:26:35,577 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 650 transitions. [2023-11-28 20:26:35,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-28 20:26:35,579 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:35,579 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 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] [2023-11-28 20:26:35,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-28 20:26:35,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-28 20:26:35,782 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:35,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:35,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1713654591, now seen corresponding path program 1 times [2023-11-28 20:26:35,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:35,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308242230] [2023-11-28 20:26:35,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:35,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:35,791 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:35,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [427896607] [2023-11-28 20:26:35,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:35,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:35,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:35,792 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:35,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-28 20:26:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:35,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 20:26:35,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:36,093 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:36,093 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:36,354 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-28 20:26:36,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:36,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308242230] [2023-11-28 20:26:36,354 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:36,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427896607] [2023-11-28 20:26:36,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427896607] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:36,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:36,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 33 [2023-11-28 20:26:36,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479718973] [2023-11-28 20:26:36,355 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:36,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-28 20:26:36,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:36,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-28 20:26:36,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=897, Unknown=0, NotChecked=0, Total=1122 [2023-11-28 20:26:36,357 INFO L87 Difference]: Start difference. First operand 569 states and 650 transitions. Second operand has 34 states, 33 states have (on average 3.3333333333333335) internal successors, (110), 34 states have internal predecessors, (110), 16 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 16 states have call predecessors, (22), 16 states have call successors, (22) [2023-11-28 20:26:37,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:37,100 INFO L93 Difference]: Finished difference Result 893 states and 1056 transitions. [2023-11-28 20:26:37,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-11-28 20:26:37,102 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.3333333333333335) internal successors, (110), 34 states have internal predecessors, (110), 16 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 16 states have call predecessors, (22), 16 states have call successors, (22) Word has length 95 [2023-11-28 20:26:37,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:37,106 INFO L225 Difference]: With dead ends: 893 [2023-11-28 20:26:37,107 INFO L226 Difference]: Without dead ends: 818 [2023-11-28 20:26:37,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1199 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=988, Invalid=4124, Unknown=0, NotChecked=0, Total=5112 [2023-11-28 20:26:37,110 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 256 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:37,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 232 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:26:37,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2023-11-28 20:26:37,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 657. [2023-11-28 20:26:37,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 536 states have (on average 1.1567164179104477) internal successors, (620), 538 states have internal predecessors, (620), 67 states have call successors, (67), 51 states have call predecessors, (67), 51 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-11-28 20:26:37,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 754 transitions. [2023-11-28 20:26:37,161 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 754 transitions. Word has length 95 [2023-11-28 20:26:37,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:37,161 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 754 transitions. [2023-11-28 20:26:37,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.3333333333333335) internal successors, (110), 34 states have internal predecessors, (110), 16 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 16 states have call predecessors, (22), 16 states have call successors, (22) [2023-11-28 20:26:37,161 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 754 transitions. [2023-11-28 20:26:37,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-28 20:26:37,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:37,163 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2023-11-28 20:26:37,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-28 20:26:37,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-28 20:26:37,364 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:37,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:37,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1502901871, now seen corresponding path program 1 times [2023-11-28 20:26:37,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:37,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215950463] [2023-11-28 20:26:37,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:37,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:37,375 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:37,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369814586] [2023-11-28 20:26:37,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:37,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:37,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:37,376 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:37,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-28 20:26:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:37,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 20:26:37,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:37,689 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:37,690 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:37,969 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-28 20:26:37,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:37,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215950463] [2023-11-28 20:26:37,970 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:37,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369814586] [2023-11-28 20:26:37,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369814586] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:37,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:37,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 33 [2023-11-28 20:26:37,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759760318] [2023-11-28 20:26:37,970 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:37,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-28 20:26:37,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:37,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-28 20:26:37,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=885, Unknown=0, NotChecked=0, Total=1122 [2023-11-28 20:26:37,973 INFO L87 Difference]: Start difference. First operand 657 states and 754 transitions. Second operand has 34 states, 33 states have (on average 3.3333333333333335) internal successors, (110), 34 states have internal predecessors, (110), 16 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 16 states have call predecessors, (22), 16 states have call successors, (22) [2023-11-28 20:26:38,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:38,668 INFO L93 Difference]: Finished difference Result 744 states and 855 transitions. [2023-11-28 20:26:38,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-11-28 20:26:38,669 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.3333333333333335) internal successors, (110), 34 states have internal predecessors, (110), 16 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 16 states have call predecessors, (22), 16 states have call successors, (22) Word has length 95 [2023-11-28 20:26:38,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:38,673 INFO L225 Difference]: With dead ends: 744 [2023-11-28 20:26:38,673 INFO L226 Difference]: Without dead ends: 736 [2023-11-28 20:26:38,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1127 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1039, Invalid=3931, Unknown=0, NotChecked=0, Total=4970 [2023-11-28 20:26:38,676 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 190 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:38,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 388 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:26:38,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2023-11-28 20:26:38,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 670. [2023-11-28 20:26:38,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 544 states have (on average 1.161764705882353) internal successors, (632), 548 states have internal predecessors, (632), 70 states have call successors, (70), 53 states have call predecessors, (70), 53 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-28 20:26:38,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 772 transitions. [2023-11-28 20:26:38,745 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 772 transitions. Word has length 95 [2023-11-28 20:26:38,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:38,746 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 772 transitions. [2023-11-28 20:26:38,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.3333333333333335) internal successors, (110), 34 states have internal predecessors, (110), 16 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 16 states have call predecessors, (22), 16 states have call successors, (22) [2023-11-28 20:26:38,746 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 772 transitions. [2023-11-28 20:26:38,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-28 20:26:38,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:38,749 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-28 20:26:38,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-28 20:26:38,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:38,949 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:38,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:38,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1461261516, now seen corresponding path program 1 times [2023-11-28 20:26:38,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:38,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641025005] [2023-11-28 20:26:38,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:38,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:38,960 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:38,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [733308266] [2023-11-28 20:26:38,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:38,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:38,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:38,962 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:38,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-28 20:26:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:39,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 20:26:39,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:39,199 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 3 proven. 142 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:39,199 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:39,413 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 3 proven. 58 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-28 20:26:39,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:39,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641025005] [2023-11-28 20:26:39,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:39,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733308266] [2023-11-28 20:26:39,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733308266] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:39,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:39,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 25 [2023-11-28 20:26:39,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634468502] [2023-11-28 20:26:39,414 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:39,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-28 20:26:39,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:39,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-28 20:26:39,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2023-11-28 20:26:39,416 INFO L87 Difference]: Start difference. First operand 670 states and 772 transitions. Second operand has 25 states, 25 states have (on average 4.12) internal successors, (103), 25 states have internal predecessors, (103), 10 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) [2023-11-28 20:26:39,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:39,877 INFO L93 Difference]: Finished difference Result 881 states and 1025 transitions. [2023-11-28 20:26:39,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-28 20:26:39,878 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.12) internal successors, (103), 25 states have internal predecessors, (103), 10 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) Word has length 99 [2023-11-28 20:26:39,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:39,883 INFO L225 Difference]: With dead ends: 881 [2023-11-28 20:26:39,883 INFO L226 Difference]: Without dead ends: 796 [2023-11-28 20:26:39,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 164 SyntacticMatches, 9 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=506, Invalid=1846, Unknown=0, NotChecked=0, Total=2352 [2023-11-28 20:26:39,886 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 113 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:39,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 403 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:26:39,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2023-11-28 20:26:39,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 730. [2023-11-28 20:26:39,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 592 states have (on average 1.1554054054054055) internal successors, (684), 596 states have internal predecessors, (684), 76 states have call successors, (76), 59 states have call predecessors, (76), 59 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) [2023-11-28 20:26:39,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 836 transitions. [2023-11-28 20:26:39,945 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 836 transitions. Word has length 99 [2023-11-28 20:26:39,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:39,946 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 836 transitions. [2023-11-28 20:26:39,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.12) internal successors, (103), 25 states have internal predecessors, (103), 10 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) [2023-11-28 20:26:39,947 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 836 transitions. [2023-11-28 20:26:39,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-28 20:26:39,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:39,949 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-28 20:26:39,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-28 20:26:40,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:40,152 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:40,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:40,152 INFO L85 PathProgramCache]: Analyzing trace with hash 2034881669, now seen corresponding path program 1 times [2023-11-28 20:26:40,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:40,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928682489] [2023-11-28 20:26:40,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:40,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:40,161 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:40,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1579615369] [2023-11-28 20:26:40,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:40,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:40,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:40,162 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:40,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-28 20:26:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:40,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 20:26:40,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 14 proven. 126 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:40,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:40,618 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 14 proven. 42 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-28 20:26:40,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:40,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928682489] [2023-11-28 20:26:40,618 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:40,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579615369] [2023-11-28 20:26:40,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579615369] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:40,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:40,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 27 [2023-11-28 20:26:40,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4518571] [2023-11-28 20:26:40,619 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:40,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-28 20:26:40,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:40,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-28 20:26:40,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=573, Unknown=0, NotChecked=0, Total=702 [2023-11-28 20:26:40,621 INFO L87 Difference]: Start difference. First operand 730 states and 836 transitions. Second operand has 27 states, 27 states have (on average 4.333333333333333) internal successors, (117), 27 states have internal predecessors, (117), 10 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) [2023-11-28 20:26:41,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:41,125 INFO L93 Difference]: Finished difference Result 960 states and 1112 transitions. [2023-11-28 20:26:41,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-11-28 20:26:41,126 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.333333333333333) internal successors, (117), 27 states have internal predecessors, (117), 10 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) Word has length 103 [2023-11-28 20:26:41,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:41,130 INFO L225 Difference]: With dead ends: 960 [2023-11-28 20:26:41,130 INFO L226 Difference]: Without dead ends: 789 [2023-11-28 20:26:41,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 172 SyntacticMatches, 7 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 768 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=574, Invalid=2506, Unknown=0, NotChecked=0, Total=3080 [2023-11-28 20:26:41,133 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 122 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:41,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 324 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:26:41,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2023-11-28 20:26:41,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 773. [2023-11-28 20:26:41,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 627 states have (on average 1.1403508771929824) internal successors, (715), 631 states have internal predecessors, (715), 79 states have call successors, (79), 64 states have call predecessors, (79), 64 states have return successors, (79), 77 states have call predecessors, (79), 79 states have call successors, (79) [2023-11-28 20:26:41,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 873 transitions. [2023-11-28 20:26:41,171 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 873 transitions. Word has length 103 [2023-11-28 20:26:41,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:41,171 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 873 transitions. [2023-11-28 20:26:41,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.333333333333333) internal successors, (117), 27 states have internal predecessors, (117), 10 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) [2023-11-28 20:26:41,171 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 873 transitions. [2023-11-28 20:26:41,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-28 20:26:41,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:41,173 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-28 20:26:41,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-28 20:26:41,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:41,373 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:41,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:41,374 INFO L85 PathProgramCache]: Analyzing trace with hash -559802573, now seen corresponding path program 2 times [2023-11-28 20:26:41,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:41,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977367706] [2023-11-28 20:26:41,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:41,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:41,381 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:41,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1159924863] [2023-11-28 20:26:41,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:26:41,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:41,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:41,383 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:41,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-28 20:26:41,446 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:26:41,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:26:41,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 20:26:41,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:41,632 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 18 proven. 122 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:41,632 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:41,850 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 18 proven. 38 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-28 20:26:41,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:41,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977367706] [2023-11-28 20:26:41,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:41,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159924863] [2023-11-28 20:26:41,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159924863] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:41,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:41,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 27 [2023-11-28 20:26:41,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031437249] [2023-11-28 20:26:41,851 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:41,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-28 20:26:41,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:41,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-28 20:26:41,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=575, Unknown=0, NotChecked=0, Total=702 [2023-11-28 20:26:41,853 INFO L87 Difference]: Start difference. First operand 773 states and 873 transitions. Second operand has 27 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 27 states have internal predecessors, (115), 10 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) [2023-11-28 20:26:42,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:42,392 INFO L93 Difference]: Finished difference Result 931 states and 1066 transitions. [2023-11-28 20:26:42,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-28 20:26:42,393 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 27 states have internal predecessors, (115), 10 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) Word has length 103 [2023-11-28 20:26:42,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:42,397 INFO L225 Difference]: With dead ends: 931 [2023-11-28 20:26:42,397 INFO L226 Difference]: Without dead ends: 836 [2023-11-28 20:26:42,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 172 SyntacticMatches, 7 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 868 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=607, Invalid=2815, Unknown=0, NotChecked=0, Total=3422 [2023-11-28 20:26:42,400 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 134 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:42,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 442 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:26:42,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2023-11-28 20:26:42,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 791. [2023-11-28 20:26:42,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 643 states have (on average 1.1337480559875583) internal successors, (729), 647 states have internal predecessors, (729), 80 states have call successors, (80), 65 states have call predecessors, (80), 65 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-11-28 20:26:42,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 889 transitions. [2023-11-28 20:26:42,462 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 889 transitions. Word has length 103 [2023-11-28 20:26:42,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:42,462 INFO L495 AbstractCegarLoop]: Abstraction has 791 states and 889 transitions. [2023-11-28 20:26:42,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 27 states have internal predecessors, (115), 10 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) [2023-11-28 20:26:42,462 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 889 transitions. [2023-11-28 20:26:42,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-28 20:26:42,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:42,465 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2023-11-28 20:26:42,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-28 20:26:42,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-28 20:26:42,667 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:42,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:42,667 INFO L85 PathProgramCache]: Analyzing trace with hash 529059419, now seen corresponding path program 1 times [2023-11-28 20:26:42,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:42,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778894555] [2023-11-28 20:26:42,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:42,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:42,678 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:42,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [813424775] [2023-11-28 20:26:42,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:42,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:42,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:42,679 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:42,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-28 20:26:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:42,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-28 20:26:42,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:42,977 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 6 proven. 168 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:42,978 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:43,195 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 6 proven. 56 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-28 20:26:43,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:43,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778894555] [2023-11-28 20:26:43,195 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:43,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813424775] [2023-11-28 20:26:43,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813424775] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:43,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:43,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 27 [2023-11-28 20:26:43,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074717975] [2023-11-28 20:26:43,196 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:43,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-28 20:26:43,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:43,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-28 20:26:43,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=575, Unknown=0, NotChecked=0, Total=702 [2023-11-28 20:26:43,198 INFO L87 Difference]: Start difference. First operand 791 states and 889 transitions. Second operand has 27 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 27 states have internal predecessors, (115), 10 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2023-11-28 20:26:43,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:43,700 INFO L93 Difference]: Finished difference Result 957 states and 1089 transitions. [2023-11-28 20:26:43,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-28 20:26:43,701 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 27 states have internal predecessors, (115), 10 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) Word has length 109 [2023-11-28 20:26:43,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:43,704 INFO L225 Difference]: With dead ends: 957 [2023-11-28 20:26:43,704 INFO L226 Difference]: Without dead ends: 854 [2023-11-28 20:26:43,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 180 SyntacticMatches, 11 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 859 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=600, Invalid=2706, Unknown=0, NotChecked=0, Total=3306 [2023-11-28 20:26:43,706 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 125 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:43,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 322 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:26:43,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2023-11-28 20:26:43,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 812. [2023-11-28 20:26:43,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 660 states have (on average 1.128787878787879) internal successors, (745), 664 states have internal predecessors, (745), 82 states have call successors, (82), 67 states have call predecessors, (82), 67 states have return successors, (82), 80 states have call predecessors, (82), 82 states have call successors, (82) [2023-11-28 20:26:43,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 909 transitions. [2023-11-28 20:26:43,749 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 909 transitions. Word has length 109 [2023-11-28 20:26:43,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:43,750 INFO L495 AbstractCegarLoop]: Abstraction has 812 states and 909 transitions. [2023-11-28 20:26:43,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 27 states have internal predecessors, (115), 10 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2023-11-28 20:26:43,750 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 909 transitions. [2023-11-28 20:26:43,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-28 20:26:43,751 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:43,752 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:26:43,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-28 20:26:43,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-28 20:26:43,952 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:43,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:43,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1923339913, now seen corresponding path program 2 times [2023-11-28 20:26:43,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:43,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811714849] [2023-11-28 20:26:43,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:43,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:43,961 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:43,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1537764238] [2023-11-28 20:26:43,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:26:43,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:43,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:43,963 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:43,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-28 20:26:44,032 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:26:44,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:26:44,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:26:44,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:44,086 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2023-11-28 20:26:44,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:26:44,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:44,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811714849] [2023-11-28 20:26:44,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:44,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537764238] [2023-11-28 20:26:44,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537764238] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:26:44,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:26:44,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:26:44,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917653316] [2023-11-28 20:26:44,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:44,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:26:44,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:44,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:26:44,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:26:44,088 INFO L87 Difference]: Start difference. First operand 812 states and 909 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-28 20:26:44,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:44,154 INFO L93 Difference]: Finished difference Result 1028 states and 1168 transitions. [2023-11-28 20:26:44,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:26:44,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 109 [2023-11-28 20:26:44,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:44,159 INFO L225 Difference]: With dead ends: 1028 [2023-11-28 20:26:44,159 INFO L226 Difference]: Without dead ends: 824 [2023-11-28 20:26:44,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:26:44,160 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 15 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:44,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 160 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:26:44,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2023-11-28 20:26:44,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 814. [2023-11-28 20:26:44,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 662 states have (on average 1.1238670694864048) internal successors, (744), 665 states have internal predecessors, (744), 83 states have call successors, (83), 66 states have call predecessors, (83), 66 states have return successors, (83), 82 states have call predecessors, (83), 83 states have call successors, (83) [2023-11-28 20:26:44,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 910 transitions. [2023-11-28 20:26:44,223 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 910 transitions. Word has length 109 [2023-11-28 20:26:44,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:44,223 INFO L495 AbstractCegarLoop]: Abstraction has 814 states and 910 transitions. [2023-11-28 20:26:44,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-28 20:26:44,223 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 910 transitions. [2023-11-28 20:26:44,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-28 20:26:44,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:44,226 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2023-11-28 20:26:44,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-28 20:26:44,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-28 20:26:44,426 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:44,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:44,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1522722119, now seen corresponding path program 2 times [2023-11-28 20:26:44,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:44,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026195716] [2023-11-28 20:26:44,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:44,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:44,438 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:44,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [7851181] [2023-11-28 20:26:44,438 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:26:44,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:44,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:44,439 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:44,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-28 20:26:44,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:26:44,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:26:44,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-28 20:26:44,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:44,752 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 3 proven. 186 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:44,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:44,954 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 3 proven. 74 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-28 20:26:44,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:44,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026195716] [2023-11-28 20:26:44,955 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:44,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7851181] [2023-11-28 20:26:44,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7851181] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:44,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:44,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 24 [2023-11-28 20:26:44,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707756452] [2023-11-28 20:26:44,955 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:44,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-28 20:26:44,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:44,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-28 20:26:44,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-28 20:26:44,957 INFO L87 Difference]: Start difference. First operand 814 states and 910 transitions. Second operand has 24 states, 24 states have (on average 4.25) internal successors, (102), 24 states have internal predecessors, (102), 10 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2023-11-28 20:26:45,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:45,387 INFO L93 Difference]: Finished difference Result 995 states and 1133 transitions. [2023-11-28 20:26:45,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-28 20:26:45,388 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.25) internal successors, (102), 24 states have internal predecessors, (102), 10 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) Word has length 109 [2023-11-28 20:26:45,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:45,391 INFO L225 Difference]: With dead ends: 995 [2023-11-28 20:26:45,391 INFO L226 Difference]: Without dead ends: 905 [2023-11-28 20:26:45,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 180 SyntacticMatches, 14 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=498, Invalid=1854, Unknown=0, NotChecked=0, Total=2352 [2023-11-28 20:26:45,393 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 112 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:45,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 253 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:26:45,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2023-11-28 20:26:45,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 834. [2023-11-28 20:26:45,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 678 states have (on average 1.1224188790560472) internal successors, (761), 681 states have internal predecessors, (761), 85 states have call successors, (85), 68 states have call predecessors, (85), 68 states have return successors, (85), 84 states have call predecessors, (85), 85 states have call successors, (85) [2023-11-28 20:26:45,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 931 transitions. [2023-11-28 20:26:45,439 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 931 transitions. Word has length 109 [2023-11-28 20:26:45,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:45,440 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 931 transitions. [2023-11-28 20:26:45,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.25) internal successors, (102), 24 states have internal predecessors, (102), 10 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2023-11-28 20:26:45,440 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 931 transitions. [2023-11-28 20:26:45,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-28 20:26:45,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:45,443 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:26:45,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-28 20:26:45,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-28 20:26:45,643 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:45,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:45,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1276503967, now seen corresponding path program 2 times [2023-11-28 20:26:45,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:45,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338821448] [2023-11-28 20:26:45,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:45,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:45,652 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:45,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1556099108] [2023-11-28 20:26:45,653 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:26:45,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:45,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:45,654 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:45,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-28 20:26:45,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:26:45,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:26:45,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-28 20:26:45,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:45,973 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 6 proven. 204 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:45,973 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:46,310 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 6 proven. 60 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-28 20:26:46,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:46,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338821448] [2023-11-28 20:26:46,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:46,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556099108] [2023-11-28 20:26:46,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556099108] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:46,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:46,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2023-11-28 20:26:46,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310237918] [2023-11-28 20:26:46,310 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:46,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-28 20:26:46,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:46,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-28 20:26:46,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=1270, Unknown=0, NotChecked=0, Total=1560 [2023-11-28 20:26:46,313 INFO L87 Difference]: Start difference. First operand 834 states and 931 transitions. Second operand has 40 states, 39 states have (on average 3.3076923076923075) internal successors, (129), 40 states have internal predecessors, (129), 19 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 19 states have call predecessors, (22), 19 states have call successors, (22) [2023-11-28 20:26:47,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:47,948 INFO L93 Difference]: Finished difference Result 1226 states and 1408 transitions. [2023-11-28 20:26:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-11-28 20:26:47,948 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.3076923076923075) internal successors, (129), 40 states have internal predecessors, (129), 19 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 19 states have call predecessors, (22), 19 states have call successors, (22) Word has length 115 [2023-11-28 20:26:47,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:47,954 INFO L225 Difference]: With dead ends: 1226 [2023-11-28 20:26:47,954 INFO L226 Difference]: Without dead ends: 1211 [2023-11-28 20:26:47,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1763 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1367, Invalid=5943, Unknown=0, NotChecked=0, Total=7310 [2023-11-28 20:26:47,958 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 286 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:47,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 519 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-28 20:26:47,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2023-11-28 20:26:48,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 944. [2023-11-28 20:26:48,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 762 states have (on average 1.1299212598425197) internal successors, (861), 767 states have internal predecessors, (861), 97 states have call successors, (97), 82 states have call predecessors, (97), 82 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-11-28 20:26:48,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1055 transitions. [2023-11-28 20:26:48,042 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1055 transitions. Word has length 115 [2023-11-28 20:26:48,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:48,042 INFO L495 AbstractCegarLoop]: Abstraction has 944 states and 1055 transitions. [2023-11-28 20:26:48,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.3076923076923075) internal successors, (129), 40 states have internal predecessors, (129), 19 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 19 states have call predecessors, (22), 19 states have call successors, (22) [2023-11-28 20:26:48,043 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1055 transitions. [2023-11-28 20:26:48,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-28 20:26:48,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:48,045 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 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] [2023-11-28 20:26:48,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-28 20:26:48,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-28 20:26:48,246 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:48,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:48,247 INFO L85 PathProgramCache]: Analyzing trace with hash -886775019, now seen corresponding path program 3 times [2023-11-28 20:26:48,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:48,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936328229] [2023-11-28 20:26:48,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:48,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:48,259 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:48,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [412603764] [2023-11-28 20:26:48,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:26:48,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:48,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:48,261 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:48,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-28 20:26:48,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-28 20:26:48,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:26:48,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:26:48,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:48,346 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-11-28 20:26:48,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:26:48,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:48,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936328229] [2023-11-28 20:26:48,347 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:48,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412603764] [2023-11-28 20:26:48,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412603764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:26:48,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:26:48,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:26:48,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203898108] [2023-11-28 20:26:48,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:48,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:26:48,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:48,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:26:48,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:26:48,348 INFO L87 Difference]: Start difference. First operand 944 states and 1055 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 20:26:48,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:48,443 INFO L93 Difference]: Finished difference Result 966 states and 1075 transitions. [2023-11-28 20:26:48,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:26:48,443 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 115 [2023-11-28 20:26:48,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:48,448 INFO L225 Difference]: With dead ends: 966 [2023-11-28 20:26:48,448 INFO L226 Difference]: Without dead ends: 962 [2023-11-28 20:26:48,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:26:48,449 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 22 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:48,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 113 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:26:48,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2023-11-28 20:26:48,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 874. [2023-11-28 20:26:48,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 706 states have (on average 1.1218130311614731) internal successors, (792), 711 states have internal predecessors, (792), 89 states have call successors, (89), 76 states have call predecessors, (89), 76 states have return successors, (89), 86 states have call predecessors, (89), 89 states have call successors, (89) [2023-11-28 20:26:48,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 970 transitions. [2023-11-28 20:26:48,534 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 970 transitions. Word has length 115 [2023-11-28 20:26:48,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:48,535 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 970 transitions. [2023-11-28 20:26:48,535 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 20:26:48,535 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 970 transitions. [2023-11-28 20:26:48,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-28 20:26:48,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:48,537 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 7, 7, 7, 7, 6, 4, 4, 4, 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] [2023-11-28 20:26:48,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-28 20:26:48,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-28 20:26:48,739 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:48,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:48,739 INFO L85 PathProgramCache]: Analyzing trace with hash -266882217, now seen corresponding path program 2 times [2023-11-28 20:26:48,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:48,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595311174] [2023-11-28 20:26:48,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:48,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:48,750 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:48,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [51922574] [2023-11-28 20:26:48,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:26:48,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:48,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:48,752 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:48,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-28 20:26:48,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:26:48,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:26:48,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-28 20:26:48,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:49,079 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 273 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:49,079 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:49,418 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-28 20:26:49,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:49,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595311174] [2023-11-28 20:26:49,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:49,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51922574] [2023-11-28 20:26:49,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51922574] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:49,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:49,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21] total 41 [2023-11-28 20:26:49,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234598043] [2023-11-28 20:26:49,419 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:49,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-11-28 20:26:49,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:49,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-11-28 20:26:49,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=369, Invalid=1353, Unknown=0, NotChecked=0, Total=1722 [2023-11-28 20:26:49,421 INFO L87 Difference]: Start difference. First operand 874 states and 970 transitions. Second operand has 42 states, 41 states have (on average 3.317073170731707) internal successors, (136), 42 states have internal predecessors, (136), 20 states have call successors, (26), 11 states have call predecessors, (26), 11 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2023-11-28 20:26:51,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:51,714 INFO L93 Difference]: Finished difference Result 1576 states and 1792 transitions. [2023-11-28 20:26:51,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-11-28 20:26:51,715 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.317073170731707) internal successors, (136), 42 states have internal predecessors, (136), 20 states have call successors, (26), 11 states have call predecessors, (26), 11 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) Word has length 115 [2023-11-28 20:26:51,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:51,719 INFO L225 Difference]: With dead ends: 1576 [2023-11-28 20:26:51,719 INFO L226 Difference]: Without dead ends: 1345 [2023-11-28 20:26:51,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2254 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1905, Invalid=7025, Unknown=0, NotChecked=0, Total=8930 [2023-11-28 20:26:51,721 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 366 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:51,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 343 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-28 20:26:51,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2023-11-28 20:26:51,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1158. [2023-11-28 20:26:51,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 937 states have (on average 1.1323372465314834) internal successors, (1061), 943 states have internal predecessors, (1061), 116 states have call successors, (116), 102 states have call predecessors, (116), 102 states have return successors, (116), 112 states have call predecessors, (116), 116 states have call successors, (116) [2023-11-28 20:26:51,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1293 transitions. [2023-11-28 20:26:51,810 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1293 transitions. Word has length 115 [2023-11-28 20:26:51,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:51,811 INFO L495 AbstractCegarLoop]: Abstraction has 1158 states and 1293 transitions. [2023-11-28 20:26:51,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.317073170731707) internal successors, (136), 42 states have internal predecessors, (136), 20 states have call successors, (26), 11 states have call predecessors, (26), 11 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2023-11-28 20:26:51,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1293 transitions. [2023-11-28 20:26:51,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-28 20:26:51,814 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:51,814 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:26:51,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-28 20:26:52,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-28 20:26:52,015 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:52,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:52,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1363244680, now seen corresponding path program 2 times [2023-11-28 20:26:52,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:52,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741595288] [2023-11-28 20:26:52,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:52,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:52,026 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:52,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [389300312] [2023-11-28 20:26:52,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:26:52,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:52,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:52,028 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:52,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-28 20:26:52,113 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:26:52,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:26:52,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-28 20:26:52,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:52,421 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 372 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:52,421 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:52,819 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-28 20:26:52,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:52,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741595288] [2023-11-28 20:26:52,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:52,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389300312] [2023-11-28 20:26:52,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389300312] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:52,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:52,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 45 [2023-11-28 20:26:52,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967804196] [2023-11-28 20:26:52,820 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:52,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-11-28 20:26:52,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:52,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-11-28 20:26:52,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=475, Invalid=1595, Unknown=0, NotChecked=0, Total=2070 [2023-11-28 20:26:52,822 INFO L87 Difference]: Start difference. First operand 1158 states and 1293 transitions. Second operand has 46 states, 45 states have (on average 3.311111111111111) internal successors, (149), 46 states have internal predecessors, (149), 22 states have call successors, (28), 12 states have call predecessors, (28), 12 states have return successors, (28), 22 states have call predecessors, (28), 22 states have call successors, (28) [2023-11-28 20:26:55,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:55,224 INFO L93 Difference]: Finished difference Result 1729 states and 1968 transitions. [2023-11-28 20:26:55,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2023-11-28 20:26:55,224 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.311111111111111) internal successors, (149), 46 states have internal predecessors, (149), 22 states have call successors, (28), 12 states have call predecessors, (28), 12 states have return successors, (28), 22 states have call predecessors, (28), 22 states have call successors, (28) Word has length 125 [2023-11-28 20:26:55,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:55,229 INFO L225 Difference]: With dead ends: 1729 [2023-11-28 20:26:55,229 INFO L226 Difference]: Without dead ends: 1498 [2023-11-28 20:26:55,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2255 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=2264, Invalid=7242, Unknown=0, NotChecked=0, Total=9506 [2023-11-28 20:26:55,231 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 361 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:55,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 460 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-28 20:26:55,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2023-11-28 20:26:55,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1397. [2023-11-28 20:26:55,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1397 states, 1130 states have (on average 1.1424778761061947) internal successors, (1291), 1139 states have internal predecessors, (1291), 141 states have call successors, (141), 123 states have call predecessors, (141), 123 states have return successors, (141), 134 states have call predecessors, (141), 141 states have call successors, (141) [2023-11-28 20:26:55,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 1573 transitions. [2023-11-28 20:26:55,307 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 1573 transitions. Word has length 125 [2023-11-28 20:26:55,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:55,307 INFO L495 AbstractCegarLoop]: Abstraction has 1397 states and 1573 transitions. [2023-11-28 20:26:55,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.311111111111111) internal successors, (149), 46 states have internal predecessors, (149), 22 states have call successors, (28), 12 states have call predecessors, (28), 12 states have return successors, (28), 22 states have call predecessors, (28), 22 states have call successors, (28) [2023-11-28 20:26:55,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 1573 transitions. [2023-11-28 20:26:55,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-28 20:26:55,310 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:55,310 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 7, 7, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:26:55,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-28 20:26:55,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-28 20:26:55,511 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:55,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:55,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1391144876, now seen corresponding path program 3 times [2023-11-28 20:26:55,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:55,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853365020] [2023-11-28 20:26:55,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:55,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:55,519 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:55,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1576975786] [2023-11-28 20:26:55,519 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:26:55,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:55,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:55,522 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:55,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-28 20:26:55,597 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-28 20:26:55,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:26:55,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:26:55,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:55,617 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2023-11-28 20:26:55,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:26:55,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:55,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853365020] [2023-11-28 20:26:55,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:55,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576975786] [2023-11-28 20:26:55,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576975786] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:26:55,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:26:55,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:26:55,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159975372] [2023-11-28 20:26:55,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:26:55,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:26:55,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:55,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:26:55,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:26:55,619 INFO L87 Difference]: Start difference. First operand 1397 states and 1573 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 20:26:55,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:55,876 INFO L93 Difference]: Finished difference Result 1421 states and 1602 transitions. [2023-11-28 20:26:55,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:26:55,876 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 125 [2023-11-28 20:26:55,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:55,882 INFO L225 Difference]: With dead ends: 1421 [2023-11-28 20:26:55,882 INFO L226 Difference]: Without dead ends: 1420 [2023-11-28 20:26:55,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:26:55,884 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 20 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:55,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 122 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:26:55,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2023-11-28 20:26:55,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1256. [2023-11-28 20:26:55,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 1016 states have (on average 1.1377952755905512) internal successors, (1156), 1025 states have internal predecessors, (1156), 127 states have call successors, (127), 110 states have call predecessors, (127), 110 states have return successors, (127), 120 states have call predecessors, (127), 127 states have call successors, (127) [2023-11-28 20:26:55,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1410 transitions. [2023-11-28 20:26:55,992 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1410 transitions. Word has length 125 [2023-11-28 20:26:55,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:55,993 INFO L495 AbstractCegarLoop]: Abstraction has 1256 states and 1410 transitions. [2023-11-28 20:26:55,993 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 20:26:55,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1410 transitions. [2023-11-28 20:26:55,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-28 20:26:55,996 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:55,996 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 7, 7, 7, 7, 4, 4, 4, 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] [2023-11-28 20:26:56,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-28 20:26:56,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:56,197 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:56,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:56,197 INFO L85 PathProgramCache]: Analyzing trace with hash -456177717, now seen corresponding path program 3 times [2023-11-28 20:26:56,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:56,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102747825] [2023-11-28 20:26:56,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:56,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:56,205 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:56,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [373481504] [2023-11-28 20:26:56,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:26:56,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:56,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:56,206 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:56,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-28 20:26:56,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-28 20:26:56,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:26:56,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:26:56,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:56,300 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 84 proven. 1 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2023-11-28 20:26:56,300 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:56,379 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2023-11-28 20:26:56,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:56,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102747825] [2023-11-28 20:26:56,380 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:56,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373481504] [2023-11-28 20:26:56,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373481504] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:56,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:56,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-28 20:26:56,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453142336] [2023-11-28 20:26:56,380 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:56,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 20:26:56,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:56,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 20:26:56,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-28 20:26:56,382 INFO L87 Difference]: Start difference. First operand 1256 states and 1410 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-28 20:26:56,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:56,824 INFO L93 Difference]: Finished difference Result 1298 states and 1457 transitions. [2023-11-28 20:26:56,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 20:26:56,824 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 129 [2023-11-28 20:26:56,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:56,831 INFO L225 Difference]: With dead ends: 1298 [2023-11-28 20:26:56,831 INFO L226 Difference]: Without dead ends: 1297 [2023-11-28 20:26:56,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-11-28 20:26:56,832 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 82 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:56,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 197 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 20:26:56,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2023-11-28 20:26:56,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1188. [2023-11-28 20:26:56,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 961 states have (on average 1.1279916753381893) internal successors, (1084), 974 states have internal predecessors, (1084), 121 states have call successors, (121), 103 states have call predecessors, (121), 103 states have return successors, (121), 110 states have call predecessors, (121), 121 states have call successors, (121) [2023-11-28 20:26:56,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1326 transitions. [2023-11-28 20:26:56,919 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1326 transitions. Word has length 129 [2023-11-28 20:26:56,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:56,919 INFO L495 AbstractCegarLoop]: Abstraction has 1188 states and 1326 transitions. [2023-11-28 20:26:56,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-28 20:26:56,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1326 transitions. [2023-11-28 20:26:56,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-28 20:26:56,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:56,922 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:26:56,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-28 20:26:57,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:57,122 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:57,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:57,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1789021743, now seen corresponding path program 1 times [2023-11-28 20:26:57,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:57,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590600621] [2023-11-28 20:26:57,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:57,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:57,132 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:57,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777443472] [2023-11-28 20:26:57,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:57,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:57,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:57,133 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:57,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-28 20:26:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:57,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-28 20:26:57,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:57,463 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 524 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:26:57,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:57,676 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 304 proven. 9 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-28 20:26:57,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:57,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590600621] [2023-11-28 20:26:57,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:57,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777443472] [2023-11-28 20:26:57,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777443472] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:57,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:57,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 24] total 24 [2023-11-28 20:26:57,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239492858] [2023-11-28 20:26:57,677 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:57,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-28 20:26:57,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:57,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-28 20:26:57,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2023-11-28 20:26:57,678 INFO L87 Difference]: Start difference. First operand 1188 states and 1326 transitions. Second operand has 24 states, 24 states have (on average 4.583333333333333) internal successors, (110), 24 states have internal predecessors, (110), 12 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2023-11-28 20:26:58,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:26:58,932 INFO L93 Difference]: Finished difference Result 1450 states and 1641 transitions. [2023-11-28 20:26:58,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-28 20:26:58,933 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.583333333333333) internal successors, (110), 24 states have internal predecessors, (110), 12 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) Word has length 143 [2023-11-28 20:26:58,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:26:58,937 INFO L225 Difference]: With dead ends: 1450 [2023-11-28 20:26:58,937 INFO L226 Difference]: Without dead ends: 1142 [2023-11-28 20:26:58,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 241 SyntacticMatches, 21 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=592, Invalid=1388, Unknown=0, NotChecked=0, Total=1980 [2023-11-28 20:26:58,938 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 68 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:26:58,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 570 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-28 20:26:58,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2023-11-28 20:26:59,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1136. [2023-11-28 20:26:59,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 919 states have (on average 1.1229597388465724) internal successors, (1032), 932 states have internal predecessors, (1032), 116 states have call successors, (116), 98 states have call predecessors, (116), 98 states have return successors, (116), 105 states have call predecessors, (116), 116 states have call successors, (116) [2023-11-28 20:26:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1264 transitions. [2023-11-28 20:26:59,033 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1264 transitions. Word has length 143 [2023-11-28 20:26:59,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:26:59,033 INFO L495 AbstractCegarLoop]: Abstraction has 1136 states and 1264 transitions. [2023-11-28 20:26:59,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.583333333333333) internal successors, (110), 24 states have internal predecessors, (110), 12 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2023-11-28 20:26:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1264 transitions. [2023-11-28 20:26:59,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-28 20:26:59,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:26:59,036 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 10, 10, 9, 9, 9, 9, 8, 4, 4, 4, 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] [2023-11-28 20:26:59,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-28 20:26:59,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-28 20:26:59,236 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:26:59,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:26:59,237 INFO L85 PathProgramCache]: Analyzing trace with hash -17226563, now seen corresponding path program 1 times [2023-11-28 20:26:59,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:26:59,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205386252] [2023-11-28 20:26:59,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:59,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:26:59,246 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:26:59,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [451184321] [2023-11-28 20:26:59,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:26:59,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:26:59,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:26:59,247 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:26:59,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-28 20:26:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:26:59,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-28 20:26:59,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:26:59,590 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 533 proven. 6 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-28 20:26:59,590 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:26:59,819 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 233 proven. 6 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2023-11-28 20:26:59,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:26:59,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205386252] [2023-11-28 20:26:59,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:26:59,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451184321] [2023-11-28 20:26:59,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451184321] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:26:59,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:26:59,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 24] total 24 [2023-11-28 20:26:59,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228225154] [2023-11-28 20:26:59,820 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:26:59,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-28 20:26:59,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:26:59,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-28 20:26:59,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2023-11-28 20:26:59,821 INFO L87 Difference]: Start difference. First operand 1136 states and 1264 transitions. Second operand has 24 states, 24 states have (on average 4.333333333333333) internal successors, (104), 24 states have internal predecessors, (104), 12 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2023-11-28 20:27:01,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:27:01,346 INFO L93 Difference]: Finished difference Result 1586 states and 1800 transitions. [2023-11-28 20:27:01,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-28 20:27:01,346 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.333333333333333) internal successors, (104), 24 states have internal predecessors, (104), 12 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) Word has length 155 [2023-11-28 20:27:01,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:27:01,348 INFO L225 Difference]: With dead ends: 1586 [2023-11-28 20:27:01,348 INFO L226 Difference]: Without dead ends: 298 [2023-11-28 20:27:01,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 265 SyntacticMatches, 21 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=596, Invalid=2266, Unknown=0, NotChecked=0, Total=2862 [2023-11-28 20:27:01,350 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 87 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:27:01,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 667 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-28 20:27:01,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-11-28 20:27:01,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 241. [2023-11-28 20:27:01,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 191 states have (on average 1.0890052356020943) internal successors, (208), 193 states have internal predecessors, (208), 25 states have call successors, (25), 22 states have call predecessors, (25), 22 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 20:27:01,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 258 transitions. [2023-11-28 20:27:01,370 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 258 transitions. Word has length 155 [2023-11-28 20:27:01,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:27:01,370 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 258 transitions. [2023-11-28 20:27:01,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.333333333333333) internal successors, (104), 24 states have internal predecessors, (104), 12 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2023-11-28 20:27:01,370 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 258 transitions. [2023-11-28 20:27:01,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-28 20:27:01,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:27:01,372 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 17, 16, 16, 16, 16, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:27:01,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-28 20:27:01,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:27:01,572 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:27:01,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:27:01,573 INFO L85 PathProgramCache]: Analyzing trace with hash -621934402, now seen corresponding path program 1 times [2023-11-28 20:27:01,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:27:01,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510492651] [2023-11-28 20:27:01,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:01,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:27:01,588 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:27:01,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1580429054] [2023-11-28 20:27:01,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:01,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:27:01,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:27:01,589 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:27:01,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-28 20:27:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:01,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-28 20:27:01,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:27:01,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 773 proven. 344 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-11-28 20:27:01,926 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:27:02,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 449 proven. 200 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2023-11-28 20:27:02,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:27:02,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510492651] [2023-11-28 20:27:02,142 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:27:02,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580429054] [2023-11-28 20:27:02,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580429054] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:27:02,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:27:02,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22] total 22 [2023-11-28 20:27:02,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663976908] [2023-11-28 20:27:02,142 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:27:02,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-28 20:27:02,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:27:02,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-28 20:27:02,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2023-11-28 20:27:02,144 INFO L87 Difference]: Start difference. First operand 241 states and 258 transitions. Second operand has 22 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 22 states have internal predecessors, (105), 11 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 11 states have call predecessors, (30), 11 states have call successors, (30) [2023-11-28 20:27:03,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:27:03,250 INFO L93 Difference]: Finished difference Result 368 states and 398 transitions. [2023-11-28 20:27:03,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-28 20:27:03,250 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 22 states have internal predecessors, (105), 11 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 11 states have call predecessors, (30), 11 states have call successors, (30) Word has length 213 [2023-11-28 20:27:03,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:27:03,252 INFO L225 Difference]: With dead ends: 368 [2023-11-28 20:27:03,252 INFO L226 Difference]: Without dead ends: 241 [2023-11-28 20:27:03,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 384 SyntacticMatches, 20 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=488, Invalid=1152, Unknown=0, NotChecked=0, Total=1640 [2023-11-28 20:27:03,253 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 64 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-28 20:27:03,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 270 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-28 20:27:03,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-11-28 20:27:03,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2023-11-28 20:27:03,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 191 states have (on average 1.0837696335078535) internal successors, (207), 193 states have internal predecessors, (207), 25 states have call successors, (25), 22 states have call predecessors, (25), 22 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 20:27:03,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 257 transitions. [2023-11-28 20:27:03,264 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 257 transitions. Word has length 213 [2023-11-28 20:27:03,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:27:03,265 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 257 transitions. [2023-11-28 20:27:03,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 22 states have internal predecessors, (105), 11 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 11 states have call predecessors, (30), 11 states have call successors, (30) [2023-11-28 20:27:03,265 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 257 transitions. [2023-11-28 20:27:03,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-11-28 20:27:03,266 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:27:03,266 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 18, 17, 17, 17, 17, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:27:03,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-28 20:27:03,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:27:03,467 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-28 20:27:03,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:27:03,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1419979283, now seen corresponding path program 2 times [2023-11-28 20:27:03,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:27:03,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448302632] [2023-11-28 20:27:03,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:03,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:27:03,482 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 20:27:03,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227907082] [2023-11-28 20:27:03,483 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:27:03,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:27:03,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:27:03,484 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:27:03,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-28 20:27:03,597 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:27:03,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:27:03,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:27:03,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:27:03,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1652 backedges. 869 proven. 0 refuted. 0 times theorem prover too weak. 783 trivial. 0 not checked. [2023-11-28 20:27:03,635 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:27:03,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:27:03,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448302632] [2023-11-28 20:27:03,635 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 20:27:03,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227907082] [2023-11-28 20:27:03,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227907082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:27:03,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:27:03,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 20:27:03,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331331974] [2023-11-28 20:27:03,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:27:03,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 20:27:03,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:27:03,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 20:27:03,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:27:03,636 INFO L87 Difference]: Start difference. First operand 241 states and 257 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 20:27:03,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:27:03,686 INFO L93 Difference]: Finished difference Result 249 states and 266 transitions. [2023-11-28 20:27:03,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 20:27:03,686 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 223 [2023-11-28 20:27:03,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:27:03,686 INFO L225 Difference]: With dead ends: 249 [2023-11-28 20:27:03,686 INFO L226 Difference]: Without dead ends: 0 [2023-11-28 20:27:03,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:27:03,687 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 5 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:27:03,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 151 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:27:03,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-28 20:27:03,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-28 20:27:03,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:27:03,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-28 20:27:03,688 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 223 [2023-11-28 20:27:03,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:27:03,688 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 20:27:03,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-28 20:27:03,688 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-28 20:27:03,688 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-28 20:27:03,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-28 20:27:03,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-28 20:27:03,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-28 20:27:03,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-28 20:27:03,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-28 20:27:03,691 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-28 20:27:03,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-28 20:27:03,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-28 20:27:03,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-28 20:35:25,701 WARN L293 SmtUtils]: Spent 8.36m on a formula simplification. DAG size of input: 292 DAG size of output: 121 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-28 20:36:26,898 WARN L293 SmtUtils]: Spent 1.01m on a formula simplification. DAG size of input: 478 DAG size of output: 153 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-28 20:36:28,747 INFO L895 garLoopResultBuilder]: At program point L31(line 31) the Hoare annotation is: (= ~counter~0 0) [2023-11-28 20:36:28,747 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-28 20:36:28,747 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2023-11-28 20:36:28,748 INFO L899 garLoopResultBuilder]: For program point L52-1(line 52) no Hoare annotation was computed. [2023-11-28 20:36:28,748 INFO L899 garLoopResultBuilder]: For program point L52-2(lines 52 58) no Hoare annotation was computed. [2023-11-28 20:36:28,748 INFO L895 garLoopResultBuilder]: At program point L52-4(lines 52 58) the Hoare annotation is: (or (and (<= ~counter~0 10) (<= 3 ~counter~0)) (and (or (= 2147483645 ~counter~0) (< ~counter~0 2147483645)) (<= 10 ~counter~0)) (and (<= 2 ~counter~0) (<= ~counter~0 11) (<= (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~y~0#1| 4294967296)))) [2023-11-28 20:36:28,748 INFO L895 garLoopResultBuilder]: At program point L52-5(lines 39 59) the Hoare annotation is: (let ((.cse0 (<= ~counter~0 2147483646)) (.cse2 (mod |ULTIMATE.start_main_~y~0#1| 4294967296)) (.cse1 (mod |ULTIMATE.start_main_~x~0#1| 4294967296))) (or (and (<= 12 ~counter~0) .cse0) (= ~counter~0 0) (and .cse0 (<= .cse1 .cse2) (<= 3 ~counter~0)) (and (<= 2 ~counter~0) (<= ~counter~0 2147483642) (= .cse2 .cse1)) (and (<= ~counter~0 2147483641) (<= 4 ~counter~0)))) [2023-11-28 20:36:28,748 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2023-11-28 20:36:28,748 INFO L899 garLoopResultBuilder]: For program point L44-2(line 44) no Hoare annotation was computed. [2023-11-28 20:36:28,748 INFO L899 garLoopResultBuilder]: For program point L44-3(lines 44 50) no Hoare annotation was computed. [2023-11-28 20:36:28,749 INFO L895 garLoopResultBuilder]: At program point L40(line 40) the Hoare annotation is: (let ((.cse1 (<= 1 ~counter~0)) (.cse3 (mod |ULTIMATE.start_main_~y~0#1| 4294967296)) (.cse2 (mod |ULTIMATE.start_main_~x~0#1| 4294967296)) (.cse0 (<= ~counter~0 10))) (or (and .cse0 .cse1 (<= .cse2 .cse3)) (and .cse1 (= .cse3 .cse2)) (= ~counter~0 1) (and .cse0 (<= 5 ~counter~0)))) [2023-11-28 20:36:28,749 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 39 59) no Hoare annotation was computed. [2023-11-28 20:36:28,749 INFO L895 garLoopResultBuilder]: At program point L44-5(lines 44 50) the Hoare annotation is: (or (= ~counter~0 3) (= ~counter~0 5) (= ~counter~0 4) (and (<= 10 ~counter~0) (<= ~counter~0 2147483640)) (and (not (= (mod |ULTIMATE.start_main_~y~0#1| 4294967296) (mod |ULTIMATE.start_main_~x~0#1| 4294967296))) (= ~counter~0 1)) (and (<= 6 ~counter~0) (<= ~counter~0 7)) (= ~counter~0 2) (and (<= ~counter~0 15) (<= 7 ~counter~0))) [2023-11-28 20:36:28,749 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2023-11-28 20:36:28,749 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-28 20:36:28,749 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2023-11-28 20:36:28,749 INFO L902 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: true [2023-11-28 20:36:28,750 INFO L895 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (= ~counter~0 0) [2023-11-28 20:36:28,750 INFO L895 garLoopResultBuilder]: At program point L28-1(line 28) the Hoare annotation is: (= ~counter~0 0) [2023-11-28 20:36:28,750 INFO L895 garLoopResultBuilder]: At program point L53(line 53) the Hoare annotation is: (or (and (<= ~counter~0 10) (<= 4 ~counter~0)) (and (<= ~counter~0 9) (<= (mod |ULTIMATE.start_main_~x~0#1| 4294967296) (mod |ULTIMATE.start_main_~y~0#1| 4294967296)) (<= 3 ~counter~0))) [2023-11-28 20:36:28,750 INFO L899 garLoopResultBuilder]: For program point L53-1(lines 52 58) no Hoare annotation was computed. [2023-11-28 20:36:28,750 INFO L895 garLoopResultBuilder]: At program point L45(line 45) the Hoare annotation is: (or (= ~counter~0 3) (= ~counter~0 5) (= ~counter~0 4) (and (not (= (mod |ULTIMATE.start_main_~y~0#1| 4294967296) (mod |ULTIMATE.start_main_~x~0#1| 4294967296))) (= ~counter~0 2)) (and (<= 10 ~counter~0) (<= ~counter~0 2147483640)) (= ~counter~0 6) (and (<= ~counter~0 15) (<= 7 ~counter~0))) [2023-11-28 20:36:28,750 INFO L899 garLoopResultBuilder]: For program point L45-1(lines 44 50) no Hoare annotation was computed. [2023-11-28 20:36:28,750 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-28 20:36:28,750 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-28 20:36:28,750 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2023-11-28 20:36:28,751 INFO L895 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (= ~counter~0 0) [2023-11-28 20:36:28,751 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2023-11-28 20:36:28,751 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-28 20:36:28,751 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-28 20:36:28,751 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2023-11-28 20:36:28,751 INFO L899 garLoopResultBuilder]: For program point L39-2(line 39) no Hoare annotation was computed. [2023-11-28 20:36:28,751 INFO L899 garLoopResultBuilder]: For program point L39-3(lines 39 59) no Hoare annotation was computed. [2023-11-28 20:36:28,751 INFO L902 garLoopResultBuilder]: At program point L39-5(lines 39 59) the Hoare annotation is: true [2023-11-28 20:36:28,751 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-28 20:36:28,751 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 13) no Hoare annotation was computed. [2023-11-28 20:36:28,751 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 13) the Hoare annotation is: true [2023-11-28 20:36:28,751 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 11 13) no Hoare annotation was computed. [2023-11-28 20:36:28,752 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2023-11-28 20:36:28,752 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2023-11-28 20:36:28,752 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-11-28 20:36:28,752 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-11-28 20:36:28,755 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:36:28,757 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:36:28,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:36:28 BoogieIcfgContainer [2023-11-28 20:36:28,767 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:36:28,767 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:36:28,767 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:36:28,768 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:36:28,768 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:26:23" (3/4) ... [2023-11-28 20:36:28,770 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-28 20:36:28,773 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-28 20:36:28,773 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-28 20:36:28,777 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-28 20:36:28,777 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-28 20:36:28,777 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-28 20:36:28,778 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-28 20:36:28,778 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-28 20:36:28,865 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-28 20:36:28,865 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-28 20:36:28,865 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:36:28,866 INFO L158 Benchmark]: Toolchain (without parser) took 606289.30ms. Allocated memory was 159.4MB in the beginning and 1.0GB in the end (delta: 857.7MB). Free memory was 124.1MB in the beginning and 937.7MB in the end (delta: -813.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-28 20:36:28,866 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 115.3MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:36:28,866 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.67ms. Allocated memory is still 159.4MB. Free memory was 123.6MB in the beginning and 113.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-28 20:36:28,867 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.25ms. Allocated memory is still 159.4MB. Free memory was 112.7MB in the beginning and 111.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:36:28,867 INFO L158 Benchmark]: Boogie Preprocessor took 40.13ms. Allocated memory is still 159.4MB. Free memory was 111.0MB in the beginning and 109.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:36:28,867 INFO L158 Benchmark]: RCFGBuilder took 390.38ms. Allocated memory is still 159.4MB. Free memory was 109.4MB in the beginning and 95.7MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-28 20:36:28,868 INFO L158 Benchmark]: TraceAbstraction took 605490.49ms. Allocated memory was 159.4MB in the beginning and 1.0GB in the end (delta: 857.7MB). Free memory was 94.7MB in the beginning and 943.0MB in the end (delta: -848.3MB). Peak memory consumption was 580.8MB. Max. memory is 16.1GB. [2023-11-28 20:36:28,868 INFO L158 Benchmark]: Witness Printer took 97.95ms. Allocated memory is still 1.0GB. Free memory was 941.9MB in the beginning and 937.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 20:36:28,869 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 115.3MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.67ms. Allocated memory is still 159.4MB. Free memory was 123.6MB in the beginning and 113.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.25ms. Allocated memory is still 159.4MB. Free memory was 112.7MB in the beginning and 111.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.13ms. Allocated memory is still 159.4MB. Free memory was 111.0MB in the beginning and 109.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 390.38ms. Allocated memory is still 159.4MB. Free memory was 109.4MB in the beginning and 95.7MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 605490.49ms. Allocated memory was 159.4MB in the beginning and 1.0GB in the end (delta: 857.7MB). Free memory was 94.7MB in the beginning and 943.0MB in the end (delta: -848.3MB). Peak memory consumption was 580.8MB. Max. memory is 16.1GB. * Witness Printer took 97.95ms. Allocated memory is still 1.0GB. Free memory was 941.9MB in the beginning and 937.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 605.4s, OverallIterations: 35, TraceHistogramMax: 19, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 19.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 564.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3675 SdHoareTripleChecker+Valid, 10.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3667 mSDsluCounter, 9423 SdHoareTripleChecker+Invalid, 9.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8030 mSDsCounter, 356 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6901 IncrementalHoareTripleChecker+Invalid, 7257 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 356 mSolverCounterUnsat, 1393 mSDtfsCounter, 6901 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6149 GetRequests, 4786 SyntacticMatches, 116 SemanticMatches, 1247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17709 ImplicationChecksByTransitivity, 11.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1397occurred in iteration=29, InterpolantAutomatonStates: 1024, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 35 MinimizatonAttempts, 1663 StatesRemovedByMinimization, 30 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 437 PreInvPairs, 709 NumberOfFragments, 238 HoareAnnotationTreeSize, 437 FomulaSimplifications, 36520461 FormulaSimplificationTreeSizeReduction, 563.4s HoareSimplificationTime, 14 FomulaSimplificationsInter, 8439 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 3227 NumberOfCodeBlocks, 2977 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 5522 ConstructedInterpolants, 0 QuantifiedInterpolants, 12338 SizeOfPredicates, 332 NumberOfNonLiveVariables, 6889 ConjunctsInSsa, 406 ConjunctsInUnsatCore, 59 InterpolantComputations, 13 PerfectInterpolantSequences, 10589/14409 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((((counter <= 10) && (3 <= counter)) || (((2147483645 == counter) || (counter < 2147483645)) && (10 <= counter))) || (((2 <= counter) && (counter <= 11)) && ((x % 4294967296) <= (y % 4294967296)))) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((12 <= counter) && (counter <= 2147483646)) || (counter == 0)) || (((counter <= 2147483646) && ((x % 4294967296) <= (y % 4294967296))) && (3 <= counter))) || (((2 <= counter) && (counter <= 2147483642)) && ((y % 4294967296) == (x % 4294967296)))) || ((counter <= 2147483641) && (4 <= counter))) - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: ((((((((counter == 3) || (counter == 5)) || (counter == 4)) || ((10 <= counter) && (counter <= 2147483640))) || (!(((y % 4294967296) == (x % 4294967296))) && (counter == 1))) || ((6 <= counter) && (counter <= 7))) || (counter == 2)) || ((counter <= 15) && (7 <= counter))) RESULT: Ultimate proved your program to be correct! [2023-11-28 20:36:28,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4688994e-cee7-4038-8231-bafae5538a78/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE