./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.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_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/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_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/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_ec063759-b139-4c88-b92a-0c5470b717cf/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 7cdbf1a1c8f20bea42ab4ad35fbada62352deeb8460cfeb3778e870071fb234e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:50:32,949 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:50:33,015 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 06:50:33,021 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:50:33,021 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:50:33,046 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:50:33,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:50:33,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:50:33,048 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:50:33,049 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:50:33,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:50:33,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:50:33,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:50:33,051 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:50:33,052 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:50:33,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:50:33,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:50:33,053 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:50:33,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:50:33,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:50:33,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:50:33,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:50:33,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:50:33,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:50:33,057 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:50:33,058 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:50:33,058 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:50:33,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:50:33,059 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:50:33,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:50:33,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:50:33,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:50:33,060 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:50:33,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:50:33,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:50:33,061 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:50:33,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:50:33,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:50:33,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:50:33,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:50:33,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:50:33,062 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:50:33,063 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:50:33,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:50:33,063 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_ec063759-b139-4c88-b92a-0c5470b717cf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cdbf1a1c8f20bea42ab4ad35fbada62352deeb8460cfeb3778e870071fb234e [2023-11-29 06:50:33,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:50:33,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:50:33,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:50:33,328 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:50:33,329 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:50:33,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c [2023-11-29 06:50:36,063 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:50:36,267 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:50:36,268 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c [2023-11-29 06:50:36,273 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/data/7b07ee19b/c923c69aa0e84beda0ba93d27918d3c7/FLAGc55d02eac [2023-11-29 06:50:36,284 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/data/7b07ee19b/c923c69aa0e84beda0ba93d27918d3c7 [2023-11-29 06:50:36,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:50:36,287 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:50:36,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:50:36,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:50:36,293 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:50:36,293 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:50:36" (1/1) ... [2023-11-29 06:50:36,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14fdd2b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:36, skipping insertion in model container [2023-11-29 06:50:36,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:50:36" (1/1) ... [2023-11-29 06:50:36,312 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:50:36,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:50:36,454 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:50:36,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:50:36,485 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:50:36,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:36 WrapperNode [2023-11-29 06:50:36,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:50:36,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:50:36,486 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:50:36,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:50:36,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:36" (1/1) ... [2023-11-29 06:50:36,498 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:36" (1/1) ... [2023-11-29 06:50:36,515 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2023-11-29 06:50:36,516 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:50:36,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:50:36,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:50:36,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:50:36,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:36" (1/1) ... [2023-11-29 06:50:36,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:36" (1/1) ... [2023-11-29 06:50:36,528 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:36" (1/1) ... [2023-11-29 06:50:36,538 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 06:50:36,538 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:36" (1/1) ... [2023-11-29 06:50:36,538 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:36" (1/1) ... [2023-11-29 06:50:36,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:36" (1/1) ... [2023-11-29 06:50:36,545 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:36" (1/1) ... [2023-11-29 06:50:36,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:36" (1/1) ... [2023-11-29 06:50:36,548 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:36" (1/1) ... [2023-11-29 06:50:36,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:50:36,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:50:36,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:50:36,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:50:36,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:36" (1/1) ... [2023-11-29 06:50:36,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:50:36,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:36,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:50:36,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:50:36,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:50:36,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:50:36,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:50:36,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:50:36,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 06:50:36,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 06:50:36,681 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:50:36,684 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:50:36,926 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:50:36,949 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:50:36,950 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 06:50:36,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:50:36 BoogieIcfgContainer [2023-11-29 06:50:36,951 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:50:36,953 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:50:36,953 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:50:36,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:50:36,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:50:36" (1/3) ... [2023-11-29 06:50:36,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b239ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:50:36, skipping insertion in model container [2023-11-29 06:50:36,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:36" (2/3) ... [2023-11-29 06:50:36,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b239ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:50:36, skipping insertion in model container [2023-11-29 06:50:36,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:50:36" (3/3) ... [2023-11-29 06:50:36,959 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_unwindbound100.c [2023-11-29 06:50:36,977 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:50:36,978 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-11-29 06:50:37,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:50:37,039 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;@661e6589, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:50:37,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2023-11-29 06:50:37,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 81 states have internal predecessors, (89), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 06:50:37,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 06:50:37,052 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:37,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 06:50:37,053 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:37,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:37,059 INFO L85 PathProgramCache]: Analyzing trace with hash 170085917, now seen corresponding path program 1 times [2023-11-29 06:50:37,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:37,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195194801] [2023-11-29 06:50:37,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:37,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:37,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:50:37,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:37,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195194801] [2023-11-29 06:50:37,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195194801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:37,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:37,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:50:37,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876071033] [2023-11-29 06:50:37,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:37,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:50:37,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:37,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:50:37,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:50:37,237 INFO L87 Difference]: Start difference. First operand has 90 states, 47 states have (on average 1.8936170212765957) internal successors, (89), 81 states have internal predecessors, (89), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-29 06:50:37,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:37,274 INFO L93 Difference]: Finished difference Result 178 states and 210 transitions. [2023-11-29 06:50:37,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:50:37,276 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2023-11-29 06:50:37,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:37,283 INFO L225 Difference]: With dead ends: 178 [2023-11-29 06:50:37,283 INFO L226 Difference]: Without dead ends: 87 [2023-11-29 06:50:37,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:50:37,290 INFO L413 NwaCegarLoop]: 97 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, 97 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:37,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:50:37,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-29 06:50:37,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-11-29 06:50:37,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 46 states have (on average 1.8043478260869565) internal successors, (83), 79 states have internal predecessors, (83), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 06:50:37,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2023-11-29 06:50:37,329 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 5 [2023-11-29 06:50:37,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:37,330 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2023-11-29 06:50:37,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-29 06:50:37,330 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2023-11-29 06:50:37,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 06:50:37,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:37,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 06:50:37,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:50:37,331 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:37,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:37,332 INFO L85 PathProgramCache]: Analyzing trace with hash 170145499, now seen corresponding path program 1 times [2023-11-29 06:50:37,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:37,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548116449] [2023-11-29 06:50:37,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:37,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:37,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:50:37,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:37,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548116449] [2023-11-29 06:50:37,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548116449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:37,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:37,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:50:37,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634812428] [2023-11-29 06:50:37,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:37,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:50:37,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:37,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:50:37,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:50:37,436 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-29 06:50:37,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:37,490 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2023-11-29 06:50:37,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:50:37,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2023-11-29 06:50:37,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:37,492 INFO L225 Difference]: With dead ends: 101 [2023-11-29 06:50:37,492 INFO L226 Difference]: Without dead ends: 91 [2023-11-29 06:50:37,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:50:37,494 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 4 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:37,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 264 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:50:37,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-29 06:50:37,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-29 06:50:37,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 50 states have (on average 1.74) internal successors, (87), 83 states have internal predecessors, (87), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 06:50:37,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 99 transitions. [2023-11-29 06:50:37,508 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 99 transitions. Word has length 5 [2023-11-29 06:50:37,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:37,508 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 99 transitions. [2023-11-29 06:50:37,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-29 06:50:37,509 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 99 transitions. [2023-11-29 06:50:37,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 06:50:37,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:37,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:37,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:50:37,510 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:37,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:37,511 INFO L85 PathProgramCache]: Analyzing trace with hash 743199255, now seen corresponding path program 1 times [2023-11-29 06:50:37,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:37,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265338512] [2023-11-29 06:50:37,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:37,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:37,525 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:37,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [66284424] [2023-11-29 06:50:37,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:37,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:37,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:37,533 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:37,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:50:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:37,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:50:37,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:37,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:50:37,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:37,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:37,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265338512] [2023-11-29 06:50:37,752 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:37,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66284424] [2023-11-29 06:50:37,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66284424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:37,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:37,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:50:37,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711519909] [2023-11-29 06:50:37,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:37,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:50:37,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:37,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:50:37,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:50:37,755 INFO L87 Difference]: Start difference. First operand 91 states and 99 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-29 06:50:37,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:37,899 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2023-11-29 06:50:37,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:50:37,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) Word has length 8 [2023-11-29 06:50:37,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:37,901 INFO L225 Difference]: With dead ends: 91 [2023-11-29 06:50:37,901 INFO L226 Difference]: Without dead ends: 86 [2023-11-29 06:50:37,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:50:37,903 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 67 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:37,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 99 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:50:37,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-29 06:50:37,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-29 06:50:37,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 50 states have (on average 1.64) internal successors, (82), 78 states have internal predecessors, (82), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 06:50:37,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2023-11-29 06:50:37,915 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 8 [2023-11-29 06:50:37,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:37,916 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2023-11-29 06:50:37,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-11-29 06:50:37,916 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2023-11-29 06:50:37,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 06:50:37,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:37,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:37,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:50:38,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:38,118 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:38,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:38,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1564340482, now seen corresponding path program 1 times [2023-11-29 06:50:38,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:38,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328767134] [2023-11-29 06:50:38,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:38,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:38,129 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:38,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2105708150] [2023-11-29 06:50:38,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:38,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:38,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:38,131 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:38,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:50:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:38,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:50:38,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:38,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:50:38,268 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:38,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:38,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328767134] [2023-11-29 06:50:38,269 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:38,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105708150] [2023-11-29 06:50:38,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105708150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:38,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:38,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:50:38,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929859786] [2023-11-29 06:50:38,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:38,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:50:38,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:38,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:50:38,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:50:38,271 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-29 06:50:38,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:38,432 INFO L93 Difference]: Finished difference Result 108 states and 118 transitions. [2023-11-29 06:50:38,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:50:38,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) Word has length 9 [2023-11-29 06:50:38,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:38,434 INFO L225 Difference]: With dead ends: 108 [2023-11-29 06:50:38,434 INFO L226 Difference]: Without dead ends: 107 [2023-11-29 06:50:38,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:50:38,436 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 108 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:38,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 132 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:50:38,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-29 06:50:38,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 88. [2023-11-29 06:50:38,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 52 states have (on average 1.6153846153846154) internal successors, (84), 80 states have internal predecessors, (84), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 06:50:38,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2023-11-29 06:50:38,449 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 9 [2023-11-29 06:50:38,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:38,449 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2023-11-29 06:50:38,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-29 06:50:38,450 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2023-11-29 06:50:38,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-29 06:50:38,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:38,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:38,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:50:38,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:38,651 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:38,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:38,652 INFO L85 PathProgramCache]: Analyzing trace with hash 148914924, now seen corresponding path program 1 times [2023-11-29 06:50:38,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:38,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468399196] [2023-11-29 06:50:38,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:38,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:38,663 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:38,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1536246156] [2023-11-29 06:50:38,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:38,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:38,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:38,665 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:38,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:50:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:38,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:50:38,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:38,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:50:38,810 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:38,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:38,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468399196] [2023-11-29 06:50:38,810 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:38,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536246156] [2023-11-29 06:50:38,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536246156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:38,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:38,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:50:38,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867390955] [2023-11-29 06:50:38,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:38,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:50:38,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:38,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:50:38,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:50:38,812 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:50:38,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:38,987 INFO L93 Difference]: Finished difference Result 151 states and 170 transitions. [2023-11-29 06:50:38,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:50:38,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-11-29 06:50:38,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:38,989 INFO L225 Difference]: With dead ends: 151 [2023-11-29 06:50:38,989 INFO L226 Difference]: Without dead ends: 148 [2023-11-29 06:50:38,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:50:38,991 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 129 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:38,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 136 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:50:38,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-29 06:50:39,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 121. [2023-11-29 06:50:39,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 79 states have (on average 1.6455696202531647) internal successors, (130), 107 states have internal predecessors, (130), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 06:50:39,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 154 transitions. [2023-11-29 06:50:39,005 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 154 transitions. Word has length 15 [2023-11-29 06:50:39,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:39,006 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 154 transitions. [2023-11-29 06:50:39,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:50:39,006 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 154 transitions. [2023-11-29 06:50:39,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 06:50:39,007 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:39,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:39,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:50:39,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:39,212 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:39,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:39,212 INFO L85 PathProgramCache]: Analyzing trace with hash 321395410, now seen corresponding path program 1 times [2023-11-29 06:50:39,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:39,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743868980] [2023-11-29 06:50:39,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:39,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:39,222 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:39,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1653154301] [2023-11-29 06:50:39,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:39,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:39,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:39,224 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:39,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:50:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:39,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:50:39,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:39,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:50:39,391 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:39,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:39,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743868980] [2023-11-29 06:50:39,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:39,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653154301] [2023-11-29 06:50:39,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653154301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:39,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:39,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:50:39,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440239923] [2023-11-29 06:50:39,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:39,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:50:39,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:39,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:50:39,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:50:39,394 INFO L87 Difference]: Start difference. First operand 121 states and 154 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:50:39,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:39,564 INFO L93 Difference]: Finished difference Result 151 states and 167 transitions. [2023-11-29 06:50:39,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:50:39,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-11-29 06:50:39,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:39,566 INFO L225 Difference]: With dead ends: 151 [2023-11-29 06:50:39,566 INFO L226 Difference]: Without dead ends: 148 [2023-11-29 06:50:39,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:50:39,567 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 182 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:39,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 127 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:50:39,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-29 06:50:39,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 122. [2023-11-29 06:50:39,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 80 states have (on average 1.6125) internal successors, (129), 108 states have internal predecessors, (129), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 06:50:39,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 153 transitions. [2023-11-29 06:50:39,580 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 153 transitions. Word has length 16 [2023-11-29 06:50:39,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:39,581 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 153 transitions. [2023-11-29 06:50:39,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:50:39,581 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 153 transitions. [2023-11-29 06:50:39,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 06:50:39,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:39,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:39,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 06:50:39,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 06:50:39,785 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:39,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:39,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1373323182, now seen corresponding path program 1 times [2023-11-29 06:50:39,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:39,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534582481] [2023-11-29 06:50:39,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:39,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:39,795 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:39,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245664756] [2023-11-29 06:50:39,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:39,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:39,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:39,796 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:39,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:50:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:39,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:50:39,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:39,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:50:39,886 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:39,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:39,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534582481] [2023-11-29 06:50:39,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:39,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245664756] [2023-11-29 06:50:39,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245664756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:39,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:39,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:50:39,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970976563] [2023-11-29 06:50:39,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:39,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:50:39,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:39,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:50:39,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:50:39,889 INFO L87 Difference]: Start difference. First operand 122 states and 153 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:50:39,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:39,990 INFO L93 Difference]: Finished difference Result 144 states and 160 transitions. [2023-11-29 06:50:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:50:39,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-29 06:50:39,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:39,992 INFO L225 Difference]: With dead ends: 144 [2023-11-29 06:50:39,992 INFO L226 Difference]: Without dead ends: 141 [2023-11-29 06:50:39,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:50:39,993 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 174 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:39,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 128 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:50:39,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-29 06:50:40,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 123. [2023-11-29 06:50:40,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 81 states have (on average 1.5802469135802468) internal successors, (128), 109 states have internal predecessors, (128), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 06:50:40,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 152 transitions. [2023-11-29 06:50:40,005 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 152 transitions. Word has length 17 [2023-11-29 06:50:40,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:40,006 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 152 transitions. [2023-11-29 06:50:40,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:50:40,006 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 152 transitions. [2023-11-29 06:50:40,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 06:50:40,007 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:40,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:40,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 06:50:40,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:40,212 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:40,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:40,213 INFO L85 PathProgramCache]: Analyzing trace with hash -376654252, now seen corresponding path program 1 times [2023-11-29 06:50:40,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:40,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395465281] [2023-11-29 06:50:40,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:40,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:40,222 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:40,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1011454209] [2023-11-29 06:50:40,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:40,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:40,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:40,224 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:40,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 06:50:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:40,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:50:40,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:40,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:50:40,313 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:40,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:40,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395465281] [2023-11-29 06:50:40,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:40,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011454209] [2023-11-29 06:50:40,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011454209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:40,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:40,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:50:40,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000219469] [2023-11-29 06:50:40,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:40,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:50:40,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:40,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:50:40,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:50:40,315 INFO L87 Difference]: Start difference. First operand 123 states and 152 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:50:40,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:40,410 INFO L93 Difference]: Finished difference Result 141 states and 157 transitions. [2023-11-29 06:50:40,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:50:40,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-29 06:50:40,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:40,412 INFO L225 Difference]: With dead ends: 141 [2023-11-29 06:50:40,412 INFO L226 Difference]: Without dead ends: 134 [2023-11-29 06:50:40,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:50:40,413 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 167 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:40,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 131 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:50:40,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-11-29 06:50:40,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 120. [2023-11-29 06:50:40,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 78 states have (on average 1.564102564102564) internal successors, (122), 106 states have internal predecessors, (122), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 06:50:40,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 146 transitions. [2023-11-29 06:50:40,423 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 146 transitions. Word has length 18 [2023-11-29 06:50:40,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:40,423 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 146 transitions. [2023-11-29 06:50:40,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 06:50:40,423 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 146 transitions. [2023-11-29 06:50:40,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 06:50:40,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:40,424 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:40,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 06:50:40,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:40,629 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:40,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:40,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1488714648, now seen corresponding path program 1 times [2023-11-29 06:50:40,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:40,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144825887] [2023-11-29 06:50:40,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:40,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:40,639 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:40,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1878291748] [2023-11-29 06:50:40,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:40,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:40,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:40,640 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:40,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 06:50:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:40,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:50:40,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:40,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:50:40,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:40,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:40,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144825887] [2023-11-29 06:50:40,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:40,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878291748] [2023-11-29 06:50:40,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878291748] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:40,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:40,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:50:40,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240946404] [2023-11-29 06:50:40,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:40,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:50:40,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:40,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:50:40,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:50:40,733 INFO L87 Difference]: Start difference. First operand 120 states and 146 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:40,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:40,782 INFO L93 Difference]: Finished difference Result 120 states and 146 transitions. [2023-11-29 06:50:40,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:50:40,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-11-29 06:50:40,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:40,784 INFO L225 Difference]: With dead ends: 120 [2023-11-29 06:50:40,784 INFO L226 Difference]: Without dead ends: 118 [2023-11-29 06:50:40,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:50:40,785 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 75 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:40,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 227 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:50:40,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-29 06:50:40,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2023-11-29 06:50:40,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 78 states have (on average 1.5256410256410255) internal successors, (119), 104 states have internal predecessors, (119), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 06:50:40,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 143 transitions. [2023-11-29 06:50:40,795 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 143 transitions. Word has length 26 [2023-11-29 06:50:40,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:40,796 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 143 transitions. [2023-11-29 06:50:40,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:40,796 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 143 transitions. [2023-11-29 06:50:40,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 06:50:40,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:40,797 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:40,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 06:50:41,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:41,001 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:41,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:41,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1094486249, now seen corresponding path program 1 times [2023-11-29 06:50:41,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:41,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543666894] [2023-11-29 06:50:41,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:41,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:41,007 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:41,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [280091288] [2023-11-29 06:50:41,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:41,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:41,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:41,009 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:41,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 06:50:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:41,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:50:41,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:41,090 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:50:41,090 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:41,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:41,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543666894] [2023-11-29 06:50:41,091 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:41,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280091288] [2023-11-29 06:50:41,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280091288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:41,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:41,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:50:41,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139888987] [2023-11-29 06:50:41,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:41,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:50:41,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:41,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:50:41,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:50:41,093 INFO L87 Difference]: Start difference. First operand 118 states and 143 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:41,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:41,156 INFO L93 Difference]: Finished difference Result 203 states and 237 transitions. [2023-11-29 06:50:41,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:50:41,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-11-29 06:50:41,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:41,157 INFO L225 Difference]: With dead ends: 203 [2023-11-29 06:50:41,158 INFO L226 Difference]: Without dead ends: 126 [2023-11-29 06:50:41,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:50:41,159 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 6 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:41,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 387 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:50:41,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-29 06:50:41,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2023-11-29 06:50:41,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 85 states have (on average 1.4823529411764707) internal successors, (126), 111 states have internal predecessors, (126), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 06:50:41,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 150 transitions. [2023-11-29 06:50:41,168 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 150 transitions. Word has length 27 [2023-11-29 06:50:41,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:41,168 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 150 transitions. [2023-11-29 06:50:41,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:41,169 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 150 transitions. [2023-11-29 06:50:41,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 06:50:41,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:41,170 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:41,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 06:50:41,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 06:50:41,373 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:41,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:41,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1551781809, now seen corresponding path program 1 times [2023-11-29 06:50:41,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:41,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548189270] [2023-11-29 06:50:41,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:41,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:41,381 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:41,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945669661] [2023-11-29 06:50:41,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:41,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:41,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:41,382 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:41,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 06:50:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:41,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:50:41,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:41,473 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:50:41,473 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:41,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:41,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548189270] [2023-11-29 06:50:41,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:41,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945669661] [2023-11-29 06:50:41,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945669661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:41,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:41,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:50:41,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323797369] [2023-11-29 06:50:41,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:41,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:50:41,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:41,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:50:41,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:50:41,475 INFO L87 Difference]: Start difference. First operand 126 states and 150 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:41,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:41,592 INFO L93 Difference]: Finished difference Result 214 states and 258 transitions. [2023-11-29 06:50:41,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:50:41,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2023-11-29 06:50:41,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:41,594 INFO L225 Difference]: With dead ends: 214 [2023-11-29 06:50:41,594 INFO L226 Difference]: Without dead ends: 210 [2023-11-29 06:50:41,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:50:41,595 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 115 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:41,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 103 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:50:41,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-29 06:50:41,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 178. [2023-11-29 06:50:41,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 129 states have (on average 1.4728682170542635) internal successors, (190), 155 states have internal predecessors, (190), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:50:41,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 230 transitions. [2023-11-29 06:50:41,609 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 230 transitions. Word has length 30 [2023-11-29 06:50:41,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:41,609 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 230 transitions. [2023-11-29 06:50:41,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:41,610 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 230 transitions. [2023-11-29 06:50:41,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 06:50:41,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:41,611 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:41,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 06:50:41,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 06:50:41,816 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:41,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:41,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1006062636, now seen corresponding path program 1 times [2023-11-29 06:50:41,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:41,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768989894] [2023-11-29 06:50:41,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:41,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:41,826 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:41,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1348082270] [2023-11-29 06:50:41,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:41,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:41,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:41,828 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:41,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 06:50:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:41,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:50:41,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:50:41,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:41,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:41,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768989894] [2023-11-29 06:50:41,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:41,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348082270] [2023-11-29 06:50:41,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348082270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:41,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:41,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:50:41,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185584654] [2023-11-29 06:50:41,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:41,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:50:41,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:41,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:50:41,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:50:41,922 INFO L87 Difference]: Start difference. First operand 178 states and 230 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:50:42,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:42,054 INFO L93 Difference]: Finished difference Result 214 states and 259 transitions. [2023-11-29 06:50:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:50:42,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2023-11-29 06:50:42,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:42,056 INFO L225 Difference]: With dead ends: 214 [2023-11-29 06:50:42,056 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 06:50:42,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:50:42,057 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 164 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:42,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 84 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:50:42,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 06:50:42,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 180. [2023-11-29 06:50:42,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 131 states have (on average 1.450381679389313) internal successors, (190), 157 states have internal predecessors, (190), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:50:42,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 230 transitions. [2023-11-29 06:50:42,071 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 230 transitions. Word has length 50 [2023-11-29 06:50:42,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:42,071 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 230 transitions. [2023-11-29 06:50:42,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:50:42,071 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 230 transitions. [2023-11-29 06:50:42,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 06:50:42,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:42,073 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:42,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 06:50:42,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 06:50:42,275 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:42,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:42,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1123170539, now seen corresponding path program 1 times [2023-11-29 06:50:42,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:42,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560843774] [2023-11-29 06:50:42,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:42,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:42,283 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:42,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [697545414] [2023-11-29 06:50:42,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:42,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:42,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:42,284 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:42,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 06:50:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:42,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:50:42,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:42,374 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:50:42,375 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:42,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:42,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560843774] [2023-11-29 06:50:42,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:42,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697545414] [2023-11-29 06:50:42,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697545414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:42,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:42,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:50:42,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770880987] [2023-11-29 06:50:42,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:42,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:50:42,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:42,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:50:42,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:50:42,377 INFO L87 Difference]: Start difference. First operand 180 states and 230 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:50:42,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:42,499 INFO L93 Difference]: Finished difference Result 214 states and 255 transitions. [2023-11-29 06:50:42,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:50:42,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2023-11-29 06:50:42,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:42,502 INFO L225 Difference]: With dead ends: 214 [2023-11-29 06:50:42,502 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 06:50:42,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:50:42,503 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 159 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:42,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 86 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:50:42,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 06:50:42,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 182. [2023-11-29 06:50:42,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 133 states have (on average 1.4285714285714286) internal successors, (190), 159 states have internal predecessors, (190), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:50:42,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 230 transitions. [2023-11-29 06:50:42,519 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 230 transitions. Word has length 51 [2023-11-29 06:50:42,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:42,519 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 230 transitions. [2023-11-29 06:50:42,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:50:42,520 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 230 transitions. [2023-11-29 06:50:42,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 06:50:42,520 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:42,521 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:42,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-29 06:50:42,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 06:50:42,721 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:42,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:42,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1330093203, now seen corresponding path program 1 times [2023-11-29 06:50:42,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:42,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026212983] [2023-11-29 06:50:42,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:42,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:42,728 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:42,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1822781259] [2023-11-29 06:50:42,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:42,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:42,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:42,729 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:42,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 06:50:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:42,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:50:42,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:42,806 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:50:42,806 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:42,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:42,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026212983] [2023-11-29 06:50:42,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:42,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822781259] [2023-11-29 06:50:42,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822781259] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:42,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:42,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:50:42,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199425603] [2023-11-29 06:50:42,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:42,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:50:42,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:42,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:50:42,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:50:42,808 INFO L87 Difference]: Start difference. First operand 182 states and 230 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:50:42,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:42,857 INFO L93 Difference]: Finished difference Result 189 states and 230 transitions. [2023-11-29 06:50:42,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:50:42,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2023-11-29 06:50:42,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:42,859 INFO L225 Difference]: With dead ends: 189 [2023-11-29 06:50:42,859 INFO L226 Difference]: Without dead ends: 188 [2023-11-29 06:50:42,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:50:42,860 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 17 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:42,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 135 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:50:42,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-29 06:50:42,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 182. [2023-11-29 06:50:42,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 133 states have (on average 1.4210526315789473) internal successors, (189), 159 states have internal predecessors, (189), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 06:50:42,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 229 transitions. [2023-11-29 06:50:42,876 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 229 transitions. Word has length 53 [2023-11-29 06:50:42,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:42,876 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 229 transitions. [2023-11-29 06:50:42,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:50:42,877 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 229 transitions. [2023-11-29 06:50:42,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 06:50:42,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:42,878 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:42,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 06:50:43,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 06:50:43,083 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:43,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:43,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1716785083, now seen corresponding path program 1 times [2023-11-29 06:50:43,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:43,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549816333] [2023-11-29 06:50:43,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:43,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:43,092 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:43,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1572666191] [2023-11-29 06:50:43,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:43,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:43,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:43,094 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:43,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 06:50:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:43,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:50:43,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:43,223 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:50:43,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:43,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:43,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549816333] [2023-11-29 06:50:43,223 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:43,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572666191] [2023-11-29 06:50:43,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572666191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:43,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:43,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:50:43,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455555756] [2023-11-29 06:50:43,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:43,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:50:43,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:43,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:50:43,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:50:43,226 INFO L87 Difference]: Start difference. First operand 182 states and 229 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:50:43,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:43,482 INFO L93 Difference]: Finished difference Result 262 states and 308 transitions. [2023-11-29 06:50:43,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:50:43,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2023-11-29 06:50:43,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:43,485 INFO L225 Difference]: With dead ends: 262 [2023-11-29 06:50:43,485 INFO L226 Difference]: Without dead ends: 261 [2023-11-29 06:50:43,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:50:43,486 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 301 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:43,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 269 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:50:43,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-11-29 06:50:43,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 217. [2023-11-29 06:50:43,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 163 states have (on average 1.4294478527607362) internal successors, (233), 189 states have internal predecessors, (233), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 06:50:43,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 283 transitions. [2023-11-29 06:50:43,507 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 283 transitions. Word has length 54 [2023-11-29 06:50:43,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:43,508 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 283 transitions. [2023-11-29 06:50:43,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:50:43,508 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 283 transitions. [2023-11-29 06:50:43,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 06:50:43,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:43,509 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:43,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 06:50:43,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 06:50:43,710 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:43,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:43,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1716783801, now seen corresponding path program 1 times [2023-11-29 06:50:43,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:43,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666883073] [2023-11-29 06:50:43,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:43,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:43,716 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:43,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [659508101] [2023-11-29 06:50:43,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:43,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:43,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:43,717 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:43,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 06:50:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:43,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:50:43,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:43,807 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:50:43,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:43,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:43,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666883073] [2023-11-29 06:50:43,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:43,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659508101] [2023-11-29 06:50:43,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659508101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:43,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:43,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:50:43,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606535861] [2023-11-29 06:50:43,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:43,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:50:43,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:43,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:50:43,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:50:43,809 INFO L87 Difference]: Start difference. First operand 217 states and 283 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:50:43,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:43,949 INFO L93 Difference]: Finished difference Result 250 states and 310 transitions. [2023-11-29 06:50:43,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:50:43,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2023-11-29 06:50:43,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:43,951 INFO L225 Difference]: With dead ends: 250 [2023-11-29 06:50:43,951 INFO L226 Difference]: Without dead ends: 249 [2023-11-29 06:50:43,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:50:43,952 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 154 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:43,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 119 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:50:43,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-11-29 06:50:43,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 221. [2023-11-29 06:50:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 167 states have (on average 1.4191616766467066) internal successors, (237), 193 states have internal predecessors, (237), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 06:50:43,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 287 transitions. [2023-11-29 06:50:43,966 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 287 transitions. Word has length 54 [2023-11-29 06:50:43,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:43,966 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 287 transitions. [2023-11-29 06:50:43,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:50:43,966 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 287 transitions. [2023-11-29 06:50:43,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 06:50:43,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:43,967 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:43,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-29 06:50:44,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 06:50:44,168 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:44,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:44,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1680690415, now seen corresponding path program 1 times [2023-11-29 06:50:44,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:44,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56564794] [2023-11-29 06:50:44,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:44,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:44,177 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:44,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [462257378] [2023-11-29 06:50:44,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:44,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:44,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:44,178 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:44,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 06:50:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:44,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:50:44,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:44,287 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:50:44,288 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:44,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:44,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56564794] [2023-11-29 06:50:44,288 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:44,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462257378] [2023-11-29 06:50:44,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462257378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:44,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:44,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:50:44,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924436196] [2023-11-29 06:50:44,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:44,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:50:44,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:44,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:50:44,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:50:44,294 INFO L87 Difference]: Start difference. First operand 221 states and 287 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:50:44,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:44,356 INFO L93 Difference]: Finished difference Result 221 states and 287 transitions. [2023-11-29 06:50:44,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:50:44,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2023-11-29 06:50:44,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:44,358 INFO L225 Difference]: With dead ends: 221 [2023-11-29 06:50:44,358 INFO L226 Difference]: Without dead ends: 220 [2023-11-29 06:50:44,358 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 [2023-11-29 06:50:44,359 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 51 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:44,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 87 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:50:44,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-11-29 06:50:44,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2023-11-29 06:50:44,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 167 states have (on average 1.401197604790419) internal successors, (234), 192 states have internal predecessors, (234), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 06:50:44,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 284 transitions. [2023-11-29 06:50:44,373 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 284 transitions. Word has length 55 [2023-11-29 06:50:44,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:44,374 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 284 transitions. [2023-11-29 06:50:44,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:50:44,374 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 284 transitions. [2023-11-29 06:50:44,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 06:50:44,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:44,375 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:44,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-29 06:50:44,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 06:50:44,581 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:44,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:44,581 INFO L85 PathProgramCache]: Analyzing trace with hash 561795451, now seen corresponding path program 1 times [2023-11-29 06:50:44,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:44,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958993501] [2023-11-29 06:50:44,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:44,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:44,587 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:44,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1632669955] [2023-11-29 06:50:44,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:44,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:44,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:44,590 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:44,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 06:50:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:44,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:50:44,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:44,710 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:50:44,710 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:44,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:44,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958993501] [2023-11-29 06:50:44,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:44,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632669955] [2023-11-29 06:50:44,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632669955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:44,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:44,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:50:44,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129411190] [2023-11-29 06:50:44,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:44,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:50:44,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:44,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:50:44,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:50:44,712 INFO L87 Difference]: Start difference. First operand 220 states and 284 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:50:44,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:44,806 INFO L93 Difference]: Finished difference Result 240 states and 296 transitions. [2023-11-29 06:50:44,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:50:44,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2023-11-29 06:50:44,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:44,808 INFO L225 Difference]: With dead ends: 240 [2023-11-29 06:50:44,808 INFO L226 Difference]: Without dead ends: 239 [2023-11-29 06:50:44,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:50:44,809 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 54 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:44,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 168 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:50:44,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-11-29 06:50:44,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 224. [2023-11-29 06:50:44,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 171 states have (on average 1.391812865497076) internal successors, (238), 196 states have internal predecessors, (238), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 06:50:44,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 288 transitions. [2023-11-29 06:50:44,828 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 288 transitions. Word has length 56 [2023-11-29 06:50:44,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:44,828 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 288 transitions. [2023-11-29 06:50:44,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:50:44,829 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 288 transitions. [2023-11-29 06:50:44,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 06:50:44,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:44,830 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:44,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 06:50:45,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 06:50:45,030 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:45,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:45,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1039228013, now seen corresponding path program 1 times [2023-11-29 06:50:45,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:45,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014419024] [2023-11-29 06:50:45,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:45,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:45,036 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:45,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [325837100] [2023-11-29 06:50:45,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:45,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:45,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:45,038 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:45,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 06:50:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:45,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:50:45,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:45,163 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:50:45,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:50:45,261 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 06:50:45,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:45,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014419024] [2023-11-29 06:50:45,262 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:45,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325837100] [2023-11-29 06:50:45,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325837100] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:50:45,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:50:45,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2023-11-29 06:50:45,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384634280] [2023-11-29 06:50:45,263 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:50:45,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:50:45,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:45,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:50:45,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:50:45,264 INFO L87 Difference]: Start difference. First operand 224 states and 288 transitions. Second operand has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 14 states have internal predecessors, (77), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:50:45,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:45,452 INFO L93 Difference]: Finished difference Result 359 states and 440 transitions. [2023-11-29 06:50:45,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:50:45,453 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 14 states have internal predecessors, (77), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 59 [2023-11-29 06:50:45,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:45,455 INFO L225 Difference]: With dead ends: 359 [2023-11-29 06:50:45,455 INFO L226 Difference]: Without dead ends: 349 [2023-11-29 06:50:45,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2023-11-29 06:50:45,456 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 112 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:45,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 694 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:50:45,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-11-29 06:50:45,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 307. [2023-11-29 06:50:45,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 241 states have (on average 1.3734439834024896) internal successors, (331), 268 states have internal predecessors, (331), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 06:50:45,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 401 transitions. [2023-11-29 06:50:45,483 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 401 transitions. Word has length 59 [2023-11-29 06:50:45,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:45,483 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 401 transitions. [2023-11-29 06:50:45,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 14 states have internal predecessors, (77), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:50:45,483 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 401 transitions. [2023-11-29 06:50:45,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 06:50:45,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:45,484 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:45,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-29 06:50:45,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:45,685 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:45,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:45,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1484644914, now seen corresponding path program 1 times [2023-11-29 06:50:45,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:45,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687198967] [2023-11-29 06:50:45,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:45,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:45,691 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:45,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [981913255] [2023-11-29 06:50:45,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:45,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:45,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:45,693 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:45,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 06:50:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:45,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:50:45,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:46,023 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 06:50:46,023 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:46,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:46,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687198967] [2023-11-29 06:50:46,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:46,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981913255] [2023-11-29 06:50:46,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981913255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:46,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:46,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:50:46,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760678010] [2023-11-29 06:50:46,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:46,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:50:46,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:46,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:50:46,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:50:46,025 INFO L87 Difference]: Start difference. First operand 307 states and 401 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 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) [2023-11-29 06:50:46,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:46,417 INFO L93 Difference]: Finished difference Result 435 states and 540 transitions. [2023-11-29 06:50:46,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:50:46,418 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 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 68 [2023-11-29 06:50:46,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:46,422 INFO L225 Difference]: With dead ends: 435 [2023-11-29 06:50:46,422 INFO L226 Difference]: Without dead ends: 431 [2023-11-29 06:50:46,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:50:46,423 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 340 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:46,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 195 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:50:46,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-11-29 06:50:46,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 387. [2023-11-29 06:50:46,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 311 states have (on average 1.3729903536977492) internal successors, (427), 338 states have internal predecessors, (427), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-29 06:50:46,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 517 transitions. [2023-11-29 06:50:46,450 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 517 transitions. Word has length 68 [2023-11-29 06:50:46,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:46,450 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 517 transitions. [2023-11-29 06:50:46,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 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) [2023-11-29 06:50:46,450 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 517 transitions. [2023-11-29 06:50:46,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 06:50:46,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:46,451 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:46,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 06:50:46,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:46,653 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:46,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:46,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1220647984, now seen corresponding path program 1 times [2023-11-29 06:50:46,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:46,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495004152] [2023-11-29 06:50:46,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:46,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:46,661 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:46,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1314375885] [2023-11-29 06:50:46,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:46,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:46,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:46,663 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:46,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 06:50:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:46,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:50:46,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:47,013 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 06:50:47,013 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:50:47,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:47,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495004152] [2023-11-29 06:50:47,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:47,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314375885] [2023-11-29 06:50:47,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314375885] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:50:47,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:50:47,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:50:47,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797135244] [2023-11-29 06:50:47,190 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:50:47,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:50:47,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:47,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:50:47,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:50:47,192 INFO L87 Difference]: Start difference. First operand 387 states and 517 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2023-11-29 06:50:47,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:47,593 INFO L93 Difference]: Finished difference Result 460 states and 583 transitions. [2023-11-29 06:50:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:50:47,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 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 69 [2023-11-29 06:50:47,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:47,596 INFO L225 Difference]: With dead ends: 460 [2023-11-29 06:50:47,596 INFO L226 Difference]: Without dead ends: 457 [2023-11-29 06:50:47,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:50:47,598 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 175 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:47,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 209 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:50:47,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-29 06:50:47,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 418. [2023-11-29 06:50:47,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 338 states have (on average 1.3727810650887573) internal successors, (464), 364 states have internal predecessors, (464), 49 states have call successors, (49), 5 states have call predecessors, (49), 5 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 06:50:47,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 562 transitions. [2023-11-29 06:50:47,633 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 562 transitions. Word has length 69 [2023-11-29 06:50:47,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:47,634 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 562 transitions. [2023-11-29 06:50:47,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2023-11-29 06:50:47,634 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 562 transitions. [2023-11-29 06:50:47,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 06:50:47,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:47,635 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:47,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 06:50:47,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:47,836 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:47,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:47,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1468807026, now seen corresponding path program 1 times [2023-11-29 06:50:47,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:47,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960054270] [2023-11-29 06:50:47,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:47,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:47,842 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:47,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [717635302] [2023-11-29 06:50:47,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:47,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:47,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:47,843 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:47,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 06:50:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:47,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:50:47,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:47,993 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:50:47,993 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:50:48,106 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 06:50:48,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:48,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960054270] [2023-11-29 06:50:48,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:48,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717635302] [2023-11-29 06:50:48,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717635302] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:50:48,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:50:48,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-29 06:50:48,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643416654] [2023-11-29 06:50:48,108 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:50:48,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:50:48,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:48,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:50:48,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:50:48,109 INFO L87 Difference]: Start difference. First operand 418 states and 562 transitions. Second operand has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:50:48,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:48,370 INFO L93 Difference]: Finished difference Result 801 states and 1046 transitions. [2023-11-29 06:50:48,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 06:50:48,373 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 70 [2023-11-29 06:50:48,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:48,377 INFO L225 Difference]: With dead ends: 801 [2023-11-29 06:50:48,377 INFO L226 Difference]: Without dead ends: 557 [2023-11-29 06:50:48,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2023-11-29 06:50:48,379 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 133 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:48,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 689 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:50:48,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2023-11-29 06:50:48,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 504. [2023-11-29 06:50:48,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 411 states have (on average 1.3527980535279804) internal successors, (556), 436 states have internal predecessors, (556), 59 states have call successors, (59), 8 states have call predecessors, (59), 8 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 06:50:48,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 674 transitions. [2023-11-29 06:50:48,423 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 674 transitions. Word has length 70 [2023-11-29 06:50:48,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:48,424 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 674 transitions. [2023-11-29 06:50:48,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:50:48,424 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 674 transitions. [2023-11-29 06:50:48,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 06:50:48,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:48,425 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:48,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-29 06:50:48,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:48,625 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:48,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:48,626 INFO L85 PathProgramCache]: Analyzing trace with hash -814618096, now seen corresponding path program 1 times [2023-11-29 06:50:48,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:48,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936471066] [2023-11-29 06:50:48,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:48,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:48,632 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:48,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1394864162] [2023-11-29 06:50:48,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:48,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:48,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:48,633 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:48,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 06:50:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:48,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:50:48,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:48,757 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 06:50:48,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:48,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:48,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936471066] [2023-11-29 06:50:48,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:48,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394864162] [2023-11-29 06:50:48,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394864162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:48,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:48,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:50:48,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522122969] [2023-11-29 06:50:48,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:48,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:50:48,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:48,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:50:48,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:50:48,759 INFO L87 Difference]: Start difference. First operand 504 states and 674 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 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) [2023-11-29 06:50:48,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:48,994 INFO L93 Difference]: Finished difference Result 677 states and 891 transitions. [2023-11-29 06:50:48,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:50:48,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 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 70 [2023-11-29 06:50:48,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:48,999 INFO L225 Difference]: With dead ends: 677 [2023-11-29 06:50:48,999 INFO L226 Difference]: Without dead ends: 672 [2023-11-29 06:50:49,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:50:49,000 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 104 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:49,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 233 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:50:49,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2023-11-29 06:50:49,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 622. [2023-11-29 06:50:49,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 509 states have (on average 1.3634577603143418) internal successors, (694), 534 states have internal predecessors, (694), 79 states have call successors, (79), 8 states have call predecessors, (79), 8 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2023-11-29 06:50:49,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 852 transitions. [2023-11-29 06:50:49,061 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 852 transitions. Word has length 70 [2023-11-29 06:50:49,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:49,061 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 852 transitions. [2023-11-29 06:50:49,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 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) [2023-11-29 06:50:49,062 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 852 transitions. [2023-11-29 06:50:49,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 06:50:49,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:49,063 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:49,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 06:50:49,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:49,263 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:49,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:49,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1711621802, now seen corresponding path program 1 times [2023-11-29 06:50:49,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:49,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468610504] [2023-11-29 06:50:49,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:49,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:49,271 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:49,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415135865] [2023-11-29 06:50:49,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:49,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:49,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:49,273 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:49,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 06:50:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:49,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:50:49,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:49,478 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 06:50:49,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:50:49,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:49,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468610504] [2023-11-29 06:50:49,539 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:49,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415135865] [2023-11-29 06:50:49,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415135865] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:50:49,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:50:49,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:50:49,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788712677] [2023-11-29 06:50:49,540 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:50:49,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:50:49,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:49,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:50:49,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:50:49,541 INFO L87 Difference]: Start difference. First operand 622 states and 852 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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) [2023-11-29 06:50:49,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:49,835 INFO L93 Difference]: Finished difference Result 939 states and 1271 transitions. [2023-11-29 06:50:49,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:50:49,836 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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 71 [2023-11-29 06:50:49,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:49,841 INFO L225 Difference]: With dead ends: 939 [2023-11-29 06:50:49,841 INFO L226 Difference]: Without dead ends: 935 [2023-11-29 06:50:49,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:50:49,843 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 270 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:49,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 273 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:50:49,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2023-11-29 06:50:49,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 753. [2023-11-29 06:50:49,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 620 states have (on average 1.364516129032258) internal successors, (846), 645 states have internal predecessors, (846), 99 states have call successors, (99), 8 states have call predecessors, (99), 8 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 06:50:49,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1044 transitions. [2023-11-29 06:50:49,919 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1044 transitions. Word has length 71 [2023-11-29 06:50:49,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:49,919 INFO L495 AbstractCegarLoop]: Abstraction has 753 states and 1044 transitions. [2023-11-29 06:50:49,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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) [2023-11-29 06:50:49,919 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1044 transitions. [2023-11-29 06:50:49,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 06:50:49,920 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:49,920 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:49,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-29 06:50:50,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 06:50:50,121 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:50,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:50,121 INFO L85 PathProgramCache]: Analyzing trace with hash 516642866, now seen corresponding path program 1 times [2023-11-29 06:50:50,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:50,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750127685] [2023-11-29 06:50:50,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:50,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:50,129 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:50,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1209594315] [2023-11-29 06:50:50,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:50,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:50,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:50,131 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:50,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 06:50:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:50,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:50:50,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:50,434 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 06:50:50,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:50:58,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:58,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750127685] [2023-11-29 06:50:58,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:58,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209594315] [2023-11-29 06:50:58,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209594315] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:50:58,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:50:58,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:50:58,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064702026] [2023-11-29 06:50:58,638 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:50:58,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:50:58,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:58,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:50:58,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=81, Unknown=2, NotChecked=0, Total=110 [2023-11-29 06:50:58,639 INFO L87 Difference]: Start difference. First operand 753 states and 1044 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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) [2023-11-29 06:50:59,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:59,035 INFO L93 Difference]: Finished difference Result 785 states and 1058 transitions. [2023-11-29 06:50:59,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:50:59,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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 71 [2023-11-29 06:50:59,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:59,040 INFO L225 Difference]: With dead ends: 785 [2023-11-29 06:50:59,040 INFO L226 Difference]: Without dead ends: 778 [2023-11-29 06:50:59,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=52, Invalid=156, Unknown=2, NotChecked=0, Total=210 [2023-11-29 06:50:59,041 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 268 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:59,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 276 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:50:59,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2023-11-29 06:50:59,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 751. [2023-11-29 06:50:59,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 618 states have (on average 1.3576051779935274) internal successors, (839), 643 states have internal predecessors, (839), 99 states have call successors, (99), 8 states have call predecessors, (99), 8 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 06:50:59,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1037 transitions. [2023-11-29 06:50:59,120 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1037 transitions. Word has length 71 [2023-11-29 06:50:59,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:59,121 INFO L495 AbstractCegarLoop]: Abstraction has 751 states and 1037 transitions. [2023-11-29 06:50:59,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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) [2023-11-29 06:50:59,121 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1037 transitions. [2023-11-29 06:50:59,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-29 06:50:59,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:59,123 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:59,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 06:50:59,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:59,324 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:50:59,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:59,325 INFO L85 PathProgramCache]: Analyzing trace with hash 2094134107, now seen corresponding path program 1 times [2023-11-29 06:50:59,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:59,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015126112] [2023-11-29 06:50:59,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:59,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:59,334 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:59,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843970239] [2023-11-29 06:50:59,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:59,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:59,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:59,336 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:59,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 06:50:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:59,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:50:59,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:59,477 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:50:59,477 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:50:59,615 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:50:59,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:59,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015126112] [2023-11-29 06:50:59,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:59,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843970239] [2023-11-29 06:50:59,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843970239] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:50:59,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:50:59,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:50:59,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875776074] [2023-11-29 06:50:59,616 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:50:59,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:50:59,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:59,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:50:59,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:50:59,618 INFO L87 Difference]: Start difference. First operand 751 states and 1037 transitions. Second operand has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-29 06:50:59,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:59,973 INFO L93 Difference]: Finished difference Result 1194 states and 1641 transitions. [2023-11-29 06:50:59,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:50:59,974 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 91 [2023-11-29 06:50:59,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:59,981 INFO L225 Difference]: With dead ends: 1194 [2023-11-29 06:50:59,981 INFO L226 Difference]: Without dead ends: 1192 [2023-11-29 06:50:59,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:50:59,982 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 382 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:59,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 356 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:50:59,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2023-11-29 06:51:00,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 965. [2023-11-29 06:51:00,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 795 states have (on average 1.3635220125786163) internal successors, (1084), 819 states have internal predecessors, (1084), 137 states have call successors, (137), 8 states have call predecessors, (137), 8 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-29 06:51:00,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1358 transitions. [2023-11-29 06:51:00,089 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1358 transitions. Word has length 91 [2023-11-29 06:51:00,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:00,089 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1358 transitions. [2023-11-29 06:51:00,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-29 06:51:00,090 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1358 transitions. [2023-11-29 06:51:00,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 06:51:00,091 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:00,091 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:00,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 06:51:00,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:00,291 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:00,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:00,292 INFO L85 PathProgramCache]: Analyzing trace with hash 493647982, now seen corresponding path program 1 times [2023-11-29 06:51:00,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:00,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804414318] [2023-11-29 06:51:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:00,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:00,297 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:00,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1370837658] [2023-11-29 06:51:00,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:00,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:00,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:00,299 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:00,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 06:51:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:00,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:51:00,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:00,400 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:51:00,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:00,516 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:51:00,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:00,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804414318] [2023-11-29 06:51:00,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:00,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370837658] [2023-11-29 06:51:00,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370837658] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:51:00,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:51:00,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:51:00,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606107783] [2023-11-29 06:51:00,517 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:00,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:51:00,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:00,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:51:00,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:51:00,518 INFO L87 Difference]: Start difference. First operand 965 states and 1358 transitions. Second operand has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-29 06:51:00,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:00,859 INFO L93 Difference]: Finished difference Result 1199 states and 1617 transitions. [2023-11-29 06:51:00,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:51:00,859 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 92 [2023-11-29 06:51:00,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:00,864 INFO L225 Difference]: With dead ends: 1199 [2023-11-29 06:51:00,864 INFO L226 Difference]: Without dead ends: 1197 [2023-11-29 06:51:00,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:51:00,865 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 468 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:00,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 310 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:51:00,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2023-11-29 06:51:00,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 970. [2023-11-29 06:51:00,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 801 states have (on average 1.32334581772784) internal successors, (1060), 824 states have internal predecessors, (1060), 137 states have call successors, (137), 8 states have call predecessors, (137), 8 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-29 06:51:00,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1334 transitions. [2023-11-29 06:51:00,931 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1334 transitions. Word has length 92 [2023-11-29 06:51:00,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:00,931 INFO L495 AbstractCegarLoop]: Abstraction has 970 states and 1334 transitions. [2023-11-29 06:51:00,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-29 06:51:00,931 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1334 transitions. [2023-11-29 06:51:00,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 06:51:00,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:00,932 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:00,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 06:51:01,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 06:51:01,133 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:01,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:01,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1949311622, now seen corresponding path program 1 times [2023-11-29 06:51:01,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:01,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102620179] [2023-11-29 06:51:01,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:01,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:01,140 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:01,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1863000256] [2023-11-29 06:51:01,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:01,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:01,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:01,142 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:01,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 06:51:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:01,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:51:01,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:01,274 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:51:01,274 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:01,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:01,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102620179] [2023-11-29 06:51:01,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:01,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863000256] [2023-11-29 06:51:01,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863000256] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:01,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:01,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:51:01,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168603859] [2023-11-29 06:51:01,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:01,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:51:01,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:01,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:51:01,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:51:01,276 INFO L87 Difference]: Start difference. First operand 970 states and 1334 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 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) [2023-11-29 06:51:01,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:01,422 INFO L93 Difference]: Finished difference Result 975 states and 1334 transitions. [2023-11-29 06:51:01,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:51:01,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 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 94 [2023-11-29 06:51:01,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:01,427 INFO L225 Difference]: With dead ends: 975 [2023-11-29 06:51:01,428 INFO L226 Difference]: Without dead ends: 974 [2023-11-29 06:51:01,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:51:01,429 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 24 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:01,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 226 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:51:01,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2023-11-29 06:51:01,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 969. [2023-11-29 06:51:01,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 801 states have (on average 1.317103620474407) internal successors, (1055), 823 states have internal predecessors, (1055), 137 states have call successors, (137), 8 states have call predecessors, (137), 8 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-29 06:51:01,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1329 transitions. [2023-11-29 06:51:01,500 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1329 transitions. Word has length 94 [2023-11-29 06:51:01,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:01,500 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1329 transitions. [2023-11-29 06:51:01,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 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) [2023-11-29 06:51:01,500 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1329 transitions. [2023-11-29 06:51:01,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 06:51:01,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:01,501 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:01,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 06:51:01,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 06:51:01,702 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:01,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:01,702 INFO L85 PathProgramCache]: Analyzing trace with hash 299118272, now seen corresponding path program 1 times [2023-11-29 06:51:01,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:01,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352265321] [2023-11-29 06:51:01,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:01,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:01,708 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:01,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515723235] [2023-11-29 06:51:01,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:01,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:01,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:01,710 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:01,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 06:51:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:01,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:51:01,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:01,833 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:51:01,833 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:01,964 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:51:01,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:01,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352265321] [2023-11-29 06:51:01,964 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:01,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515723235] [2023-11-29 06:51:01,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515723235] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:51:01,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:51:01,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 06:51:01,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180557507] [2023-11-29 06:51:01,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:01,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:51:01,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:01,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:51:01,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:51:01,966 INFO L87 Difference]: Start difference. First operand 969 states and 1329 transitions. Second operand has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-29 06:51:02,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:02,785 INFO L93 Difference]: Finished difference Result 1188 states and 1576 transitions. [2023-11-29 06:51:02,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:51:02,785 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 95 [2023-11-29 06:51:02,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:02,792 INFO L225 Difference]: With dead ends: 1188 [2023-11-29 06:51:02,792 INFO L226 Difference]: Without dead ends: 1187 [2023-11-29 06:51:02,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:51:02,793 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 345 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:02,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 527 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:51:02,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2023-11-29 06:51:02,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 977. [2023-11-29 06:51:02,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 809 states have (on average 1.3127317676143386) internal successors, (1062), 831 states have internal predecessors, (1062), 137 states have call successors, (137), 8 states have call predecessors, (137), 8 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-29 06:51:02,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1336 transitions. [2023-11-29 06:51:02,886 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1336 transitions. Word has length 95 [2023-11-29 06:51:02,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:02,886 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1336 transitions. [2023-11-29 06:51:02,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-29 06:51:02,886 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1336 transitions. [2023-11-29 06:51:02,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 06:51:02,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:02,887 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:02,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-29 06:51:03,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 06:51:03,089 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:03,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:03,089 INFO L85 PathProgramCache]: Analyzing trace with hash -310145086, now seen corresponding path program 1 times [2023-11-29 06:51:03,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:03,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145334036] [2023-11-29 06:51:03,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:03,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:03,097 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:03,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [576762207] [2023-11-29 06:51:03,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:03,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:03,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:03,099 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:03,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 06:51:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:03,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:51:03,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:03,313 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:51:03,313 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:03,425 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 06:51:03,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:03,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145334036] [2023-11-29 06:51:03,426 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:03,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576762207] [2023-11-29 06:51:03,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576762207] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:51:03,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:51:03,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:51:03,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783844205] [2023-11-29 06:51:03,426 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:03,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:51:03,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:03,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:51:03,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:51:03,427 INFO L87 Difference]: Start difference. First operand 977 states and 1336 transitions. Second operand has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 06:51:04,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:04,771 INFO L93 Difference]: Finished difference Result 1240 states and 1644 transitions. [2023-11-29 06:51:04,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:51:04,772 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 97 [2023-11-29 06:51:04,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:04,777 INFO L225 Difference]: With dead ends: 1240 [2023-11-29 06:51:04,777 INFO L226 Difference]: Without dead ends: 1239 [2023-11-29 06:51:04,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:51:04,778 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 373 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:04,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 316 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 06:51:04,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2023-11-29 06:51:04,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1057. [2023-11-29 06:51:04,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 880 states have (on average 1.3136363636363637) internal successors, (1156), 902 states have internal predecessors, (1156), 146 states have call successors, (146), 8 states have call predecessors, (146), 8 states have return successors, (146), 146 states have call predecessors, (146), 146 states have call successors, (146) [2023-11-29 06:51:04,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1448 transitions. [2023-11-29 06:51:04,870 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1448 transitions. Word has length 97 [2023-11-29 06:51:04,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:04,870 INFO L495 AbstractCegarLoop]: Abstraction has 1057 states and 1448 transitions. [2023-11-29 06:51:04,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 06:51:04,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1448 transitions. [2023-11-29 06:51:04,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 06:51:04,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:04,871 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:04,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 06:51:05,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:05,072 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:05,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:05,072 INFO L85 PathProgramCache]: Analyzing trace with hash -333473127, now seen corresponding path program 1 times [2023-11-29 06:51:05,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:05,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676308061] [2023-11-29 06:51:05,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:05,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:05,079 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:05,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [977972737] [2023-11-29 06:51:05,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:05,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:05,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:05,080 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:05,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 06:51:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:05,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:51:05,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:05,275 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 06:51:05,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:05,465 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 06:51:05,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:05,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676308061] [2023-11-29 06:51:05,465 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:05,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977972737] [2023-11-29 06:51:05,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977972737] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:51:05,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:51:05,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-11-29 06:51:05,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696444059] [2023-11-29 06:51:05,466 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:05,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:51:05,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:05,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:51:05,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:51:05,467 INFO L87 Difference]: Start difference. First operand 1057 states and 1448 transitions. Second operand has 9 states, 8 states have (on average 11.125) internal successors, (89), 9 states have internal predecessors, (89), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 06:51:06,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:06,546 INFO L93 Difference]: Finished difference Result 1087 states and 1465 transitions. [2023-11-29 06:51:06,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:51:06,547 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 9 states have internal predecessors, (89), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 107 [2023-11-29 06:51:06,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:06,553 INFO L225 Difference]: With dead ends: 1087 [2023-11-29 06:51:06,553 INFO L226 Difference]: Without dead ends: 1086 [2023-11-29 06:51:06,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:51:06,554 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 434 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:06,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 315 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:51:06,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2023-11-29 06:51:06,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 1019. [2023-11-29 06:51:06,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 848 states have (on average 1.3089622641509433) internal successors, (1110), 869 states have internal predecessors, (1110), 141 states have call successors, (141), 8 states have call predecessors, (141), 8 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2023-11-29 06:51:06,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1392 transitions. [2023-11-29 06:51:06,636 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1392 transitions. Word has length 107 [2023-11-29 06:51:06,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:06,637 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1392 transitions. [2023-11-29 06:51:06,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 9 states have internal predecessors, (89), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 06:51:06,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1392 transitions. [2023-11-29 06:51:06,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 06:51:06,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:06,638 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:06,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-29 06:51:06,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:06,839 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:06,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:06,839 INFO L85 PathProgramCache]: Analyzing trace with hash -2097993323, now seen corresponding path program 1 times [2023-11-29 06:51:06,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:06,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523683556] [2023-11-29 06:51:06,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:06,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:06,846 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:06,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2025657438] [2023-11-29 06:51:06,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:06,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:06,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:06,848 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:06,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 06:51:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:06,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:51:06,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:07,375 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 06:51:07,376 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:07,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:07,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523683556] [2023-11-29 06:51:07,540 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:07,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025657438] [2023-11-29 06:51:07,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025657438] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:07,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:07,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:51:07,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848312664] [2023-11-29 06:51:07,541 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:07,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:51:07,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:07,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:51:07,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:51:07,542 INFO L87 Difference]: Start difference. First operand 1019 states and 1392 transitions. Second operand has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:51:08,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:08,880 INFO L93 Difference]: Finished difference Result 1823 states and 2486 transitions. [2023-11-29 06:51:08,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:51:08,880 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 109 [2023-11-29 06:51:08,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:08,896 INFO L225 Difference]: With dead ends: 1823 [2023-11-29 06:51:08,896 INFO L226 Difference]: Without dead ends: 1820 [2023-11-29 06:51:08,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:51:08,897 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 351 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:08,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 412 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:51:08,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2023-11-29 06:51:09,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1319. [2023-11-29 06:51:09,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1103 states have (on average 1.3218495013599274) internal successors, (1458), 1124 states have internal predecessors, (1458), 186 states have call successors, (186), 8 states have call predecessors, (186), 8 states have return successors, (186), 186 states have call predecessors, (186), 186 states have call successors, (186) [2023-11-29 06:51:09,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1830 transitions. [2023-11-29 06:51:09,029 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1830 transitions. Word has length 109 [2023-11-29 06:51:09,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:09,030 INFO L495 AbstractCegarLoop]: Abstraction has 1319 states and 1830 transitions. [2023-11-29 06:51:09,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:51:09,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1830 transitions. [2023-11-29 06:51:09,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 06:51:09,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:09,031 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:09,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-29 06:51:09,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 06:51:09,232 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:09,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:09,232 INFO L85 PathProgramCache]: Analyzing trace with hash -613283511, now seen corresponding path program 1 times [2023-11-29 06:51:09,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:09,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713365016] [2023-11-29 06:51:09,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:09,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:09,240 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:09,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [77008210] [2023-11-29 06:51:09,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:09,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:09,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:09,241 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:09,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 06:51:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:09,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:51:09,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:09,724 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 06:51:09,724 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:09,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:09,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713365016] [2023-11-29 06:51:09,937 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:09,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77008210] [2023-11-29 06:51:09,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77008210] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:09,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:09,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:51:09,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722317055] [2023-11-29 06:51:09,937 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:09,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:51:09,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:09,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:51:09,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:51:09,939 INFO L87 Difference]: Start difference. First operand 1319 states and 1830 transitions. Second operand has 10 states, 9 states have (on average 7.0) internal successors, (63), 10 states have internal predecessors, (63), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:51:10,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:10,927 INFO L93 Difference]: Finished difference Result 1427 states and 1956 transitions. [2023-11-29 06:51:10,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:51:10,928 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.0) internal successors, (63), 10 states have internal predecessors, (63), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 110 [2023-11-29 06:51:10,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:10,934 INFO L225 Difference]: With dead ends: 1427 [2023-11-29 06:51:10,934 INFO L226 Difference]: Without dead ends: 1424 [2023-11-29 06:51:10,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:51:10,935 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 94 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:10,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 414 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:51:10,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2023-11-29 06:51:11,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1395. [2023-11-29 06:51:11,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 1167 states have (on average 1.3213367609254498) internal successors, (1542), 1188 states have internal predecessors, (1542), 198 states have call successors, (198), 8 states have call predecessors, (198), 8 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2023-11-29 06:51:11,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1938 transitions. [2023-11-29 06:51:11,059 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1938 transitions. Word has length 110 [2023-11-29 06:51:11,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:11,060 INFO L495 AbstractCegarLoop]: Abstraction has 1395 states and 1938 transitions. [2023-11-29 06:51:11,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.0) internal successors, (63), 10 states have internal predecessors, (63), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:51:11,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1938 transitions. [2023-11-29 06:51:11,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 06:51:11,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:11,061 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:11,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 06:51:11,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 06:51:11,262 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:11,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:11,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1831919593, now seen corresponding path program 1 times [2023-11-29 06:51:11,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:11,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527223853] [2023-11-29 06:51:11,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:11,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:11,268 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:11,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1454527530] [2023-11-29 06:51:11,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:11,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:11,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:11,270 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:11,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 06:51:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:11,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:51:11,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:11,420 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 06:51:11,420 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:11,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:11,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527223853] [2023-11-29 06:51:11,420 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:11,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454527530] [2023-11-29 06:51:11,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454527530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:11,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:11,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:51:11,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816599215] [2023-11-29 06:51:11,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:11,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:51:11,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:11,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:51:11,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:51:11,421 INFO L87 Difference]: Start difference. First operand 1395 states and 1938 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:51:11,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:11,841 INFO L93 Difference]: Finished difference Result 1471 states and 2005 transitions. [2023-11-29 06:51:11,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:51:11,842 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 111 [2023-11-29 06:51:11,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:11,850 INFO L225 Difference]: With dead ends: 1471 [2023-11-29 06:51:11,850 INFO L226 Difference]: Without dead ends: 1466 [2023-11-29 06:51:11,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:51:11,851 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 73 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:11,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 466 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:51:11,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2023-11-29 06:51:11,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 825. [2023-11-29 06:51:11,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 685 states have (on average 1.251094890510949) internal successors, (857), 702 states have internal predecessors, (857), 114 states have call successors, (114), 8 states have call predecessors, (114), 8 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2023-11-29 06:51:11,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1085 transitions. [2023-11-29 06:51:11,946 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1085 transitions. Word has length 111 [2023-11-29 06:51:11,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:11,946 INFO L495 AbstractCegarLoop]: Abstraction has 825 states and 1085 transitions. [2023-11-29 06:51:11,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:51:11,946 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1085 transitions. [2023-11-29 06:51:11,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 06:51:11,947 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:11,947 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:11,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 06:51:12,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 06:51:12,148 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:12,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:12,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1111770159, now seen corresponding path program 2 times [2023-11-29 06:51:12,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:12,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465533792] [2023-11-29 06:51:12,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:12,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:12,154 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:12,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980552098] [2023-11-29 06:51:12,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:51:12,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:12,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:12,155 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:12,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 06:51:12,217 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:51:12,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:51:12,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:51:12,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:12,474 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 18 proven. 46 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-29 06:51:12,474 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:12,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:12,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465533792] [2023-11-29 06:51:12,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:12,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980552098] [2023-11-29 06:51:12,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980552098] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:12,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:12,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:51:12,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591701611] [2023-11-29 06:51:12,750 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:12,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:51:12,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:12,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:51:12,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:51:12,751 INFO L87 Difference]: Start difference. First operand 825 states and 1085 transitions. Second operand has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:51:13,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:13,857 INFO L93 Difference]: Finished difference Result 1071 states and 1374 transitions. [2023-11-29 06:51:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:51:13,857 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 112 [2023-11-29 06:51:13,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:13,861 INFO L225 Difference]: With dead ends: 1071 [2023-11-29 06:51:13,861 INFO L226 Difference]: Without dead ends: 1067 [2023-11-29 06:51:13,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:51:13,862 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 288 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:13,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 427 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:51:13,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2023-11-29 06:51:13,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 825. [2023-11-29 06:51:13,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 685 states have (on average 1.2277372262773723) internal successors, (841), 702 states have internal predecessors, (841), 114 states have call successors, (114), 8 states have call predecessors, (114), 8 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2023-11-29 06:51:13,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1069 transitions. [2023-11-29 06:51:13,940 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1069 transitions. Word has length 112 [2023-11-29 06:51:13,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:13,941 INFO L495 AbstractCegarLoop]: Abstraction has 825 states and 1069 transitions. [2023-11-29 06:51:13,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:51:13,941 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1069 transitions. [2023-11-29 06:51:13,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 06:51:13,942 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:13,942 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:13,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 06:51:14,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 06:51:14,142 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:14,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:14,143 INFO L85 PathProgramCache]: Analyzing trace with hash -954932469, now seen corresponding path program 1 times [2023-11-29 06:51:14,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:14,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380503781] [2023-11-29 06:51:14,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:14,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:14,149 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:14,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716582888] [2023-11-29 06:51:14,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:14,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:14,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:14,150 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:14,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 06:51:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:14,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:51:14,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:14,713 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 06:51:14,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:14,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:14,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380503781] [2023-11-29 06:51:14,937 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:14,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716582888] [2023-11-29 06:51:14,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716582888] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:14,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:14,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:51:14,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963189139] [2023-11-29 06:51:14,938 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:14,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:51:14,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:14,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:51:14,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:51:14,939 INFO L87 Difference]: Start difference. First operand 825 states and 1069 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:51:15,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:15,994 INFO L93 Difference]: Finished difference Result 854 states and 1083 transitions. [2023-11-29 06:51:15,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:51:15,995 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 112 [2023-11-29 06:51:15,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:15,999 INFO L225 Difference]: With dead ends: 854 [2023-11-29 06:51:15,999 INFO L226 Difference]: Without dead ends: 847 [2023-11-29 06:51:15,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=516, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:51:16,000 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 215 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:16,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 406 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:51:16,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2023-11-29 06:51:16,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 729. [2023-11-29 06:51:16,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 604 states have (on average 1.2218543046357615) internal successors, (738), 622 states have internal predecessors, (738), 99 states have call successors, (99), 8 states have call predecessors, (99), 8 states have return successors, (99), 98 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 06:51:16,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 936 transitions. [2023-11-29 06:51:16,066 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 936 transitions. Word has length 112 [2023-11-29 06:51:16,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:16,066 INFO L495 AbstractCegarLoop]: Abstraction has 729 states and 936 transitions. [2023-11-29 06:51:16,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 06:51:16,066 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 936 transitions. [2023-11-29 06:51:16,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 06:51:16,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:16,067 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:16,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 06:51:16,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 06:51:16,267 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:16,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:16,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1484264000, now seen corresponding path program 1 times [2023-11-29 06:51:16,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:16,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314600683] [2023-11-29 06:51:16,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:16,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:16,275 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:16,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [733860314] [2023-11-29 06:51:16,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:16,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:16,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:16,276 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:16,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 06:51:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:16,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:51:16,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:16,380 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 06:51:16,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:16,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:16,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314600683] [2023-11-29 06:51:16,381 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:16,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733860314] [2023-11-29 06:51:16,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733860314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:16,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:16,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:51:16,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476723365] [2023-11-29 06:51:16,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:16,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:51:16,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:16,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:51:16,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:51:16,383 INFO L87 Difference]: Start difference. First operand 729 states and 936 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:51:16,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:16,624 INFO L93 Difference]: Finished difference Result 1262 states and 1629 transitions. [2023-11-29 06:51:16,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:51:16,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 115 [2023-11-29 06:51:16,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:16,629 INFO L225 Difference]: With dead ends: 1262 [2023-11-29 06:51:16,629 INFO L226 Difference]: Without dead ends: 792 [2023-11-29 06:51:16,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:51:16,631 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 80 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:16,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 164 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:51:16,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2023-11-29 06:51:16,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 713. [2023-11-29 06:51:16,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 593 states have (on average 1.2377740303541316) internal successors, (734), 610 states have internal predecessors, (734), 96 states have call successors, (96), 6 states have call predecessors, (96), 6 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2023-11-29 06:51:16,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 926 transitions. [2023-11-29 06:51:16,705 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 926 transitions. Word has length 115 [2023-11-29 06:51:16,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:16,706 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 926 transitions. [2023-11-29 06:51:16,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:51:16,706 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 926 transitions. [2023-11-29 06:51:16,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 06:51:16,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:16,707 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:16,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-11-29 06:51:16,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 06:51:16,907 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:16,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:16,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1339089997, now seen corresponding path program 1 times [2023-11-29 06:51:16,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:16,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919934299] [2023-11-29 06:51:16,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:16,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:16,914 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:16,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [701200588] [2023-11-29 06:51:16,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:16,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:16,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:16,915 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:16,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 06:51:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:16,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:51:16,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:17,148 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:51:17,148 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:17,317 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 06:51:17,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:17,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919934299] [2023-11-29 06:51:17,317 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:17,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701200588] [2023-11-29 06:51:17,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701200588] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:51:17,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:51:17,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2023-11-29 06:51:17,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447891911] [2023-11-29 06:51:17,318 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:17,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 06:51:17,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:17,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 06:51:17,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:51:17,319 INFO L87 Difference]: Start difference. First operand 713 states and 926 transitions. Second operand has 22 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 22 states have internal predecessors, (167), 8 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 06:51:17,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:17,733 INFO L93 Difference]: Finished difference Result 937 states and 1171 transitions. [2023-11-29 06:51:17,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-29 06:51:17,733 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 22 states have internal predecessors, (167), 8 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 141 [2023-11-29 06:51:17,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:17,737 INFO L225 Difference]: With dead ends: 937 [2023-11-29 06:51:17,737 INFO L226 Difference]: Without dead ends: 928 [2023-11-29 06:51:17,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=430, Invalid=1376, Unknown=0, NotChecked=0, Total=1806 [2023-11-29 06:51:17,738 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 219 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:17,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 848 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:51:17,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2023-11-29 06:51:17,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 852. [2023-11-29 06:51:17,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 713 states have (on average 1.2258064516129032) internal successors, (874), 732 states have internal predecessors, (874), 110 states have call successors, (110), 11 states have call predecessors, (110), 11 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2023-11-29 06:51:17,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1094 transitions. [2023-11-29 06:51:17,821 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1094 transitions. Word has length 141 [2023-11-29 06:51:17,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:17,822 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1094 transitions. [2023-11-29 06:51:17,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 22 states have internal predecessors, (167), 8 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 06:51:17,822 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1094 transitions. [2023-11-29 06:51:17,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 06:51:17,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:17,823 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:17,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 06:51:18,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 06:51:18,024 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:18,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:18,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1818834514, now seen corresponding path program 2 times [2023-11-29 06:51:18,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:18,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417762580] [2023-11-29 06:51:18,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:18,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:18,032 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:18,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [798662674] [2023-11-29 06:51:18,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:51:18,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:18,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:18,034 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:18,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 06:51:18,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:51:18,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:51:18,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:51:18,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:18,544 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 06:51:18,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:18,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:18,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417762580] [2023-11-29 06:51:18,544 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:18,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798662674] [2023-11-29 06:51:18,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798662674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:18,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:18,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:51:18,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037952213] [2023-11-29 06:51:18,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:18,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:51:18,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:18,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:51:18,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:51:18,546 INFO L87 Difference]: Start difference. First operand 852 states and 1094 transitions. Second operand has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 06:51:19,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:19,301 INFO L93 Difference]: Finished difference Result 1178 states and 1500 transitions. [2023-11-29 06:51:19,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:51:19,301 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 150 [2023-11-29 06:51:19,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:19,307 INFO L225 Difference]: With dead ends: 1178 [2023-11-29 06:51:19,308 INFO L226 Difference]: Without dead ends: 1176 [2023-11-29 06:51:19,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:51:19,308 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 241 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:19,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 508 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:51:19,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2023-11-29 06:51:19,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 671. [2023-11-29 06:51:19,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 556 states have (on average 1.1978417266187051) internal successors, (666), 573 states have internal predecessors, (666), 88 states have call successors, (88), 11 states have call predecessors, (88), 11 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-29 06:51:19,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 842 transitions. [2023-11-29 06:51:19,375 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 842 transitions. Word has length 150 [2023-11-29 06:51:19,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:19,375 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 842 transitions. [2023-11-29 06:51:19,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 06:51:19,375 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 842 transitions. [2023-11-29 06:51:19,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 06:51:19,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:19,376 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:19,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 06:51:19,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 06:51:19,577 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:19,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:19,577 INFO L85 PathProgramCache]: Analyzing trace with hash -549295024, now seen corresponding path program 2 times [2023-11-29 06:51:19,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:19,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264345209] [2023-11-29 06:51:19,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:19,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:19,585 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:19,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [721763120] [2023-11-29 06:51:19,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:51:19,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:19,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:19,587 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:19,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 06:51:19,652 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:51:19,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:51:19,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:51:19,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:20,160 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 06:51:20,160 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:20,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:20,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264345209] [2023-11-29 06:51:20,425 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:20,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721763120] [2023-11-29 06:51:20,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721763120] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:20,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:20,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:51:20,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803013487] [2023-11-29 06:51:20,426 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:20,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:51:20,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:20,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:51:20,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:51:20,427 INFO L87 Difference]: Start difference. First operand 671 states and 842 transitions. Second operand has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 10 states have internal predecessors, (84), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 06:51:21,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:21,276 INFO L93 Difference]: Finished difference Result 746 states and 921 transitions. [2023-11-29 06:51:21,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:51:21,277 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 10 states have internal predecessors, (84), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 151 [2023-11-29 06:51:21,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:21,281 INFO L225 Difference]: With dead ends: 746 [2023-11-29 06:51:21,281 INFO L226 Difference]: Without dead ends: 743 [2023-11-29 06:51:21,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:51:21,282 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 168 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:21,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 306 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:51:21,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2023-11-29 06:51:21,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 717. [2023-11-29 06:51:21,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 595 states have (on average 1.2) internal successors, (714), 611 states have internal predecessors, (714), 95 states have call successors, (95), 11 states have call predecessors, (95), 11 states have return successors, (95), 94 states have call predecessors, (95), 95 states have call successors, (95) [2023-11-29 06:51:21,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 904 transitions. [2023-11-29 06:51:21,351 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 904 transitions. Word has length 151 [2023-11-29 06:51:21,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:21,351 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 904 transitions. [2023-11-29 06:51:21,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 10 states have internal predecessors, (84), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-29 06:51:21,351 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 904 transitions. [2023-11-29 06:51:21,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 06:51:21,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:21,352 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:21,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 06:51:21,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 06:51:21,553 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:21,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:21,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1819803274, now seen corresponding path program 3 times [2023-11-29 06:51:21,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:21,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690815871] [2023-11-29 06:51:21,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:21,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:21,562 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:21,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1960921316] [2023-11-29 06:51:21,562 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:51:21,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:21,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:21,563 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:21,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 06:51:21,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 06:51:21,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:51:21,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:51:21,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:22,056 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 45 proven. 26 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2023-11-29 06:51:22,056 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:22,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:22,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690815871] [2023-11-29 06:51:22,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:22,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960921316] [2023-11-29 06:51:22,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960921316] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:22,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:22,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:51:22,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164943880] [2023-11-29 06:51:22,467 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:22,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:51:22,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:22,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:51:22,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:51:22,468 INFO L87 Difference]: Start difference. First operand 717 states and 904 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 06:51:25,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:25,492 INFO L93 Difference]: Finished difference Result 882 states and 1088 transitions. [2023-11-29 06:51:25,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:51:25,492 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 153 [2023-11-29 06:51:25,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:25,496 INFO L225 Difference]: With dead ends: 882 [2023-11-29 06:51:25,496 INFO L226 Difference]: Without dead ends: 878 [2023-11-29 06:51:25,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:51:25,497 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 355 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:25,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 476 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 06:51:25,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2023-11-29 06:51:25,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 708. [2023-11-29 06:51:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 586 states have (on average 1.18259385665529) internal successors, (693), 602 states have internal predecessors, (693), 95 states have call successors, (95), 11 states have call predecessors, (95), 11 states have return successors, (95), 94 states have call predecessors, (95), 95 states have call successors, (95) [2023-11-29 06:51:25,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 883 transitions. [2023-11-29 06:51:25,591 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 883 transitions. Word has length 153 [2023-11-29 06:51:25,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:25,591 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 883 transitions. [2023-11-29 06:51:25,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 06:51:25,591 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 883 transitions. [2023-11-29 06:51:25,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 06:51:25,592 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:25,592 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:25,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 06:51:25,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:25,793 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:25,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:25,793 INFO L85 PathProgramCache]: Analyzing trace with hash 408461394, now seen corresponding path program 2 times [2023-11-29 06:51:25,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:25,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104218809] [2023-11-29 06:51:25,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:25,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:25,802 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:25,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1708419940] [2023-11-29 06:51:25,803 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:51:25,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:25,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:25,803 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:25,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 06:51:25,870 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:51:25,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:51:25,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 06:51:25,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:26,446 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 06:51:26,447 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:46,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:46,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104218809] [2023-11-29 06:51:46,886 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:46,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708419940] [2023-11-29 06:51:46,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708419940] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:46,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:46,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:51:46,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338138913] [2023-11-29 06:51:46,887 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:46,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:51:46,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:46,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:51:46,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=270, Unknown=5, NotChecked=0, Total=342 [2023-11-29 06:51:46,888 INFO L87 Difference]: Start difference. First operand 708 states and 883 transitions. Second operand has 11 states, 10 states have (on average 8.6) internal successors, (86), 11 states have internal predecessors, (86), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:51:47,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:47,805 INFO L93 Difference]: Finished difference Result 740 states and 904 transitions. [2023-11-29 06:51:47,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:51:47,805 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.6) internal successors, (86), 11 states have internal predecessors, (86), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 153 [2023-11-29 06:51:47,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:47,808 INFO L225 Difference]: With dead ends: 740 [2023-11-29 06:51:47,808 INFO L226 Difference]: Without dead ends: 733 [2023-11-29 06:51:47,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=136, Invalid=561, Unknown=5, NotChecked=0, Total=702 [2023-11-29 06:51:47,809 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 219 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:47,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 582 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:51:47,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2023-11-29 06:51:47,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 620. [2023-11-29 06:51:47,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 513 states have (on average 1.1676413255360625) internal successors, (599), 529 states have internal predecessors, (599), 80 states have call successors, (80), 11 states have call predecessors, (80), 11 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2023-11-29 06:51:47,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 759 transitions. [2023-11-29 06:51:47,885 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 759 transitions. Word has length 153 [2023-11-29 06:51:47,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:47,885 INFO L495 AbstractCegarLoop]: Abstraction has 620 states and 759 transitions. [2023-11-29 06:51:47,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.6) internal successors, (86), 11 states have internal predecessors, (86), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:51:47,885 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 759 transitions. [2023-11-29 06:51:47,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-29 06:51:47,886 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:47,886 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:47,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 06:51:48,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:48,087 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:48,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:48,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2123409639, now seen corresponding path program 1 times [2023-11-29 06:51:48,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:48,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035349721] [2023-11-29 06:51:48,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:48,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:48,097 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:48,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1483614178] [2023-11-29 06:51:48,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:48,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:48,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:48,098 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:48,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 06:51:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:48,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:51:48,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:48,354 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 381 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-29 06:51:48,354 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:48,574 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 06:51:48,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:48,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035349721] [2023-11-29 06:51:48,574 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:48,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483614178] [2023-11-29 06:51:48,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483614178] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:51:48,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:51:48,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 26 [2023-11-29 06:51:48,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106314835] [2023-11-29 06:51:48,575 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:48,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 06:51:48,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:48,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 06:51:48,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=505, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:51:48,577 INFO L87 Difference]: Start difference. First operand 620 states and 759 transitions. Second operand has 26 states, 26 states have (on average 7.230769230769231) internal successors, (188), 26 states have internal predecessors, (188), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 06:51:49,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:49,119 INFO L93 Difference]: Finished difference Result 1043 states and 1271 transitions. [2023-11-29 06:51:49,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-29 06:51:49,120 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 7.230769230769231) internal successors, (188), 26 states have internal predecessors, (188), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 156 [2023-11-29 06:51:49,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:49,124 INFO L225 Difference]: With dead ends: 1043 [2023-11-29 06:51:49,124 INFO L226 Difference]: Without dead ends: 845 [2023-11-29 06:51:49,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=589, Invalid=1961, Unknown=0, NotChecked=0, Total=2550 [2023-11-29 06:51:49,126 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 225 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:49,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 913 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:51:49,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2023-11-29 06:51:49,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 787. [2023-11-29 06:51:49,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 653 states have (on average 1.1485451761102603) internal successors, (750), 673 states have internal predecessors, (750), 102 states have call successors, (102), 16 states have call predecessors, (102), 16 states have return successors, (102), 97 states have call predecessors, (102), 102 states have call successors, (102) [2023-11-29 06:51:49,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 954 transitions. [2023-11-29 06:51:49,230 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 954 transitions. Word has length 156 [2023-11-29 06:51:49,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:49,230 INFO L495 AbstractCegarLoop]: Abstraction has 787 states and 954 transitions. [2023-11-29 06:51:49,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.230769230769231) internal successors, (188), 26 states have internal predecessors, (188), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 06:51:49,230 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 954 transitions. [2023-11-29 06:51:49,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-29 06:51:49,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:49,232 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:49,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-29 06:51:49,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:49,433 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:49,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:49,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1318603289, now seen corresponding path program 3 times [2023-11-29 06:51:49,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:49,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887196603] [2023-11-29 06:51:49,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:49,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:49,442 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:49,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1197107620] [2023-11-29 06:51:49,442 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:51:49,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:49,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:49,443 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:49,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 06:51:50,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:51:50,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:51:50,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 06:51:50,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:51,443 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 76 proven. 70 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-29 06:51:51,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:53,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:53,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887196603] [2023-11-29 06:51:53,080 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:53,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197107620] [2023-11-29 06:51:53,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197107620] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:53,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:53,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 06:51:53,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110325692] [2023-11-29 06:51:53,081 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:53,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:51:53,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:53,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:51:53,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:51:53,082 INFO L87 Difference]: Start difference. First operand 787 states and 954 transitions. Second operand has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:51:58,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:58,276 INFO L93 Difference]: Finished difference Result 1203 states and 1483 transitions. [2023-11-29 06:51:58,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 06:51:58,276 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 163 [2023-11-29 06:51:58,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:58,281 INFO L225 Difference]: With dead ends: 1203 [2023-11-29 06:51:58,281 INFO L226 Difference]: Without dead ends: 1200 [2023-11-29 06:51:58,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=194, Invalid=676, Unknown=0, NotChecked=0, Total=870 [2023-11-29 06:51:58,282 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 372 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:58,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 269 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-29 06:51:58,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2023-11-29 06:51:58,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1128. [2023-11-29 06:51:58,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 944 states have (on average 1.1747881355932204) internal successors, (1109), 965 states have internal predecessors, (1109), 152 states have call successors, (152), 16 states have call predecessors, (152), 16 states have return successors, (152), 146 states have call predecessors, (152), 152 states have call successors, (152) [2023-11-29 06:51:58,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1413 transitions. [2023-11-29 06:51:58,445 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1413 transitions. Word has length 163 [2023-11-29 06:51:58,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:58,445 INFO L495 AbstractCegarLoop]: Abstraction has 1128 states and 1413 transitions. [2023-11-29 06:51:58,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.916666666666667) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:51:58,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1413 transitions. [2023-11-29 06:51:58,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-29 06:51:58,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:58,446 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:58,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2023-11-29 06:51:58,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:58,646 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:51:58,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:58,647 INFO L85 PathProgramCache]: Analyzing trace with hash 162410459, now seen corresponding path program 3 times [2023-11-29 06:51:58,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:58,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255785854] [2023-11-29 06:51:58,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:58,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:58,655 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:58,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972625810] [2023-11-29 06:51:58,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:51:58,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:58,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:58,656 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:58,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 06:51:58,751 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:51:58,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:51:58,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 06:51:58,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:59,039 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 66 proven. 79 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2023-11-29 06:51:59,039 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:59,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:59,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255785854] [2023-11-29 06:51:59,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:59,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972625810] [2023-11-29 06:51:59,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972625810] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:59,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:59,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:51:59,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033805639] [2023-11-29 06:51:59,294 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:59,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:51:59,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:59,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:51:59,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:51:59,296 INFO L87 Difference]: Start difference. First operand 1128 states and 1413 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 11 states have internal predecessors, (81), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:52:00,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:00,883 INFO L93 Difference]: Finished difference Result 1170 states and 1453 transitions. [2023-11-29 06:52:00,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:52:00,883 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 11 states have internal predecessors, (81), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 4 states have call successors, (12) Word has length 165 [2023-11-29 06:52:00,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:00,887 INFO L225 Difference]: With dead ends: 1170 [2023-11-29 06:52:00,887 INFO L226 Difference]: Without dead ends: 1110 [2023-11-29 06:52:00,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 207 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2023-11-29 06:52:00,889 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 262 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:00,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 206 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 06:52:00,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2023-11-29 06:52:01,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1033. [2023-11-29 06:52:01,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 865 states have (on average 1.138728323699422) internal successors, (985), 883 states have internal predecessors, (985), 139 states have call successors, (139), 15 states have call predecessors, (139), 15 states have return successors, (139), 134 states have call predecessors, (139), 139 states have call successors, (139) [2023-11-29 06:52:01,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1263 transitions. [2023-11-29 06:52:01,103 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1263 transitions. Word has length 165 [2023-11-29 06:52:01,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:01,104 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1263 transitions. [2023-11-29 06:52:01,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 11 states have internal predecessors, (81), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 06:52:01,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1263 transitions. [2023-11-29 06:52:01,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-29 06:52:01,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:01,106 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1] [2023-11-29 06:52:01,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 06:52:01,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:01,307 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:52:01,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:01,307 INFO L85 PathProgramCache]: Analyzing trace with hash -2124397676, now seen corresponding path program 2 times [2023-11-29 06:52:01,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:01,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104289508] [2023-11-29 06:52:01,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:01,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:01,315 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:52:01,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [142623532] [2023-11-29 06:52:01,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:52:01,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:01,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:01,317 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:01,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 06:52:01,401 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:52:01,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:52:01,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:52:01,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:01,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 06:52:01,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:52:01,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 06:52:01,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:01,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104289508] [2023-11-29 06:52:01,760 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:52:01,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142623532] [2023-11-29 06:52:01,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142623532] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:52:01,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:52:01,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 06:52:01,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525323818] [2023-11-29 06:52:01,760 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:52:01,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:52:01,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:01,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:52:01,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=105, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:52:01,762 INFO L87 Difference]: Start difference. First operand 1033 states and 1263 transitions. Second operand has 14 states, 13 states have (on average 16.0) internal successors, (208), 14 states have internal predecessors, (208), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2023-11-29 06:52:02,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:02,572 INFO L93 Difference]: Finished difference Result 2187 states and 2726 transitions. [2023-11-29 06:52:02,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:52:02,573 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 16.0) internal successors, (208), 14 states have internal predecessors, (208), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) Word has length 214 [2023-11-29 06:52:02,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:02,576 INFO L225 Difference]: With dead ends: 2187 [2023-11-29 06:52:02,576 INFO L226 Difference]: Without dead ends: 2186 [2023-11-29 06:52:02,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=143, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:52:02,577 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 630 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:02,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 671 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:52:02,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2186 states. [2023-11-29 06:52:02,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2186 to 1573. [2023-11-29 06:52:02,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1318 states have (on average 1.1980273141122912) internal successors, (1579), 1335 states have internal predecessors, (1579), 226 states have call successors, (226), 15 states have call predecessors, (226), 15 states have return successors, (226), 222 states have call predecessors, (226), 226 states have call successors, (226) [2023-11-29 06:52:02,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2031 transitions. [2023-11-29 06:52:02,841 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2031 transitions. Word has length 214 [2023-11-29 06:52:02,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:02,841 INFO L495 AbstractCegarLoop]: Abstraction has 1573 states and 2031 transitions. [2023-11-29 06:52:02,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 16.0) internal successors, (208), 14 states have internal predecessors, (208), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2023-11-29 06:52:02,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2031 transitions. [2023-11-29 06:52:02,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-29 06:52:02,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:02,844 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1] [2023-11-29 06:52:02,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 06:52:03,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 06:52:03,044 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:52:03,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:03,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1431818411, now seen corresponding path program 2 times [2023-11-29 06:52:03,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:03,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467775379] [2023-11-29 06:52:03,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:03,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:03,053 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:52:03,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038053136] [2023-11-29 06:52:03,053 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:52:03,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:03,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:03,054 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:03,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 06:52:03,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:52:03,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:52:03,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:52:03,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:03,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 06:52:03,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:52:03,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 06:52:03,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:03,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467775379] [2023-11-29 06:52:03,475 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:52:03,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038053136] [2023-11-29 06:52:03,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038053136] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:52:03,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:52:03,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 06:52:03,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893902622] [2023-11-29 06:52:03,475 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:52:03,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:52:03,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:03,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:52:03,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=105, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:52:03,477 INFO L87 Difference]: Start difference. First operand 1573 states and 2031 transitions. Second operand has 14 states, 13 states have (on average 16.153846153846153) internal successors, (210), 14 states have internal predecessors, (210), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2023-11-29 06:52:04,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:04,445 INFO L93 Difference]: Finished difference Result 2191 states and 2710 transitions. [2023-11-29 06:52:04,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:52:04,446 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 16.153846153846153) internal successors, (210), 14 states have internal predecessors, (210), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) Word has length 215 [2023-11-29 06:52:04,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:04,450 INFO L225 Difference]: With dead ends: 2191 [2023-11-29 06:52:04,450 INFO L226 Difference]: Without dead ends: 2190 [2023-11-29 06:52:04,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=143, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:52:04,451 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 575 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:04,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 700 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:52:04,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2023-11-29 06:52:04,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 1577. [2023-11-29 06:52:04,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1322 states have (on average 1.1822995461422088) internal successors, (1563), 1339 states have internal predecessors, (1563), 226 states have call successors, (226), 15 states have call predecessors, (226), 15 states have return successors, (226), 222 states have call predecessors, (226), 226 states have call successors, (226) [2023-11-29 06:52:04,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 2015 transitions. [2023-11-29 06:52:04,736 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 2015 transitions. Word has length 215 [2023-11-29 06:52:04,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:04,736 INFO L495 AbstractCegarLoop]: Abstraction has 1577 states and 2015 transitions. [2023-11-29 06:52:04,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 16.153846153846153) internal successors, (210), 14 states have internal predecessors, (210), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2023-11-29 06:52:04,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 2015 transitions. [2023-11-29 06:52:04,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-11-29 06:52:04,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:04,738 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 06:52:04,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2023-11-29 06:52:04,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:04,939 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:52:04,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:04,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1457868590, now seen corresponding path program 1 times [2023-11-29 06:52:04,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:04,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536236348] [2023-11-29 06:52:04,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:04,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:04,948 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:52:04,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1276631678] [2023-11-29 06:52:04,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:04,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:04,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:04,949 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:04,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 06:52:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:05,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:52:05,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:05,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-29 06:52:05,352 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:52:05,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-29 06:52:05,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:05,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536236348] [2023-11-29 06:52:05,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:52:05,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276631678] [2023-11-29 06:52:05,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276631678] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:52:05,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:52:05,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 06:52:05,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451125615] [2023-11-29 06:52:05,610 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:52:05,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 06:52:05,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:05,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 06:52:05,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:52:05,611 INFO L87 Difference]: Start difference. First operand 1577 states and 2015 transitions. Second operand has 16 states, 15 states have (on average 16.333333333333332) internal successors, (245), 16 states have internal predecessors, (245), 14 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 14 states have call predecessors, (44), 14 states have call successors, (44) [2023-11-29 06:52:08,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:08,525 INFO L93 Difference]: Finished difference Result 3678 states and 4771 transitions. [2023-11-29 06:52:08,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 06:52:08,525 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 16.333333333333332) internal successors, (245), 16 states have internal predecessors, (245), 14 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 14 states have call predecessors, (44), 14 states have call successors, (44) Word has length 232 [2023-11-29 06:52:08,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:08,530 INFO L225 Difference]: With dead ends: 3678 [2023-11-29 06:52:08,531 INFO L226 Difference]: Without dead ends: 3669 [2023-11-29 06:52:08,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=380, Invalid=612, Unknown=0, NotChecked=0, Total=992 [2023-11-29 06:52:08,532 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 989 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:08,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 625 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 06:52:08,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3669 states. [2023-11-29 06:52:09,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3669 to 2140. [2023-11-29 06:52:09,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 1803 states have (on average 1.1835829173599557) internal successors, (2134), 1820 states have internal predecessors, (2134), 308 states have call successors, (308), 15 states have call predecessors, (308), 15 states have return successors, (308), 304 states have call predecessors, (308), 308 states have call successors, (308) [2023-11-29 06:52:09,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2750 transitions. [2023-11-29 06:52:09,035 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2750 transitions. Word has length 232 [2023-11-29 06:52:09,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:09,035 INFO L495 AbstractCegarLoop]: Abstraction has 2140 states and 2750 transitions. [2023-11-29 06:52:09,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 16.333333333333332) internal successors, (245), 16 states have internal predecessors, (245), 14 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 14 states have call predecessors, (44), 14 states have call successors, (44) [2023-11-29 06:52:09,035 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2750 transitions. [2023-11-29 06:52:09,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-11-29 06:52:09,037 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:09,037 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:52:09,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 06:52:09,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:09,238 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:52:09,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:09,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1935903257, now seen corresponding path program 1 times [2023-11-29 06:52:09,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:09,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606496984] [2023-11-29 06:52:09,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:09,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:09,247 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:52:09,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1421671488] [2023-11-29 06:52:09,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:09,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:09,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:09,248 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:09,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 06:52:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:09,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:52:09,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:09,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 0 proven. 1138 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:52:09,664 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:52:10,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-29 06:52:10,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:10,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606496984] [2023-11-29 06:52:10,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:52:10,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421671488] [2023-11-29 06:52:10,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421671488] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:52:10,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:52:10,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 33 [2023-11-29 06:52:10,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300747571] [2023-11-29 06:52:10,015 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:52:10,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 06:52:10,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:10,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 06:52:10,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 06:52:10,018 INFO L87 Difference]: Start difference. First operand 2140 states and 2750 transitions. Second operand has 34 states, 33 states have (on average 8.545454545454545) internal successors, (282), 34 states have internal predecessors, (282), 14 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 14 states have call predecessors, (46), 14 states have call successors, (46) [2023-11-29 06:52:11,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:11,497 INFO L93 Difference]: Finished difference Result 3538 states and 4519 transitions. [2023-11-29 06:52:11,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-11-29 06:52:11,497 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 8.545454545454545) internal successors, (282), 34 states have internal predecessors, (282), 14 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 14 states have call predecessors, (46), 14 states have call successors, (46) Word has length 244 [2023-11-29 06:52:11,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:11,502 INFO L225 Difference]: With dead ends: 3538 [2023-11-29 06:52:11,502 INFO L226 Difference]: Without dead ends: 3038 [2023-11-29 06:52:11,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1301 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1282, Invalid=4120, Unknown=0, NotChecked=0, Total=5402 [2023-11-29 06:52:11,505 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 504 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:11,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 946 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:52:11,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3038 states. [2023-11-29 06:52:12,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3038 to 2880. [2023-11-29 06:52:12,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2880 states, 2433 states have (on average 1.1627620221948212) internal successors, (2829), 2452 states have internal predecessors, (2829), 402 states have call successors, (402), 31 states have call predecessors, (402), 31 states have return successors, (402), 396 states have call predecessors, (402), 402 states have call successors, (402) [2023-11-29 06:52:12,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3633 transitions. [2023-11-29 06:52:12,024 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3633 transitions. Word has length 244 [2023-11-29 06:52:12,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:12,024 INFO L495 AbstractCegarLoop]: Abstraction has 2880 states and 3633 transitions. [2023-11-29 06:52:12,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 8.545454545454545) internal successors, (282), 34 states have internal predecessors, (282), 14 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (46), 14 states have call predecessors, (46), 14 states have call successors, (46) [2023-11-29 06:52:12,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3633 transitions. [2023-11-29 06:52:12,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-11-29 06:52:12,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:12,026 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:52:12,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 06:52:12,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 06:52:12,227 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:52:12,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:12,227 INFO L85 PathProgramCache]: Analyzing trace with hash -829564705, now seen corresponding path program 1 times [2023-11-29 06:52:12,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:12,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799786093] [2023-11-29 06:52:12,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:12,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:12,237 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:52:12,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735636372] [2023-11-29 06:52:12,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:12,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:12,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:12,238 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:12,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 06:52:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:12,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:52:12,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:12,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1269 backedges. 658 proven. 48 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2023-11-29 06:52:12,438 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:52:12,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1269 backedges. 154 proven. 48 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2023-11-29 06:52:12,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:12,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799786093] [2023-11-29 06:52:12,584 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:52:12,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735636372] [2023-11-29 06:52:12,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735636372] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:52:12,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:52:12,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-11-29 06:52:12,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931822448] [2023-11-29 06:52:12,585 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:52:12,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:52:12,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:12,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:52:12,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:52:12,586 INFO L87 Difference]: Start difference. First operand 2880 states and 3633 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 6 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2023-11-29 06:52:13,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:13,615 INFO L93 Difference]: Finished difference Result 4469 states and 5705 transitions. [2023-11-29 06:52:13,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:52:13,616 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 6 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 247 [2023-11-29 06:52:13,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:13,622 INFO L225 Difference]: With dead ends: 4469 [2023-11-29 06:52:13,622 INFO L226 Difference]: Without dead ends: 2959 [2023-11-29 06:52:13,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 484 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:52:13,626 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 140 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:13,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 454 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:52:13,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2023-11-29 06:52:14,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 2744. [2023-11-29 06:52:14,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2744 states, 2322 states have (on average 1.1752799310938846) internal successors, (2729), 2339 states have internal predecessors, (2729), 384 states have call successors, (384), 24 states have call predecessors, (384), 24 states have return successors, (384), 380 states have call predecessors, (384), 384 states have call successors, (384) [2023-11-29 06:52:14,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2744 states to 2744 states and 3497 transitions. [2023-11-29 06:52:14,149 INFO L78 Accepts]: Start accepts. Automaton has 2744 states and 3497 transitions. Word has length 247 [2023-11-29 06:52:14,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:14,149 INFO L495 AbstractCegarLoop]: Abstraction has 2744 states and 3497 transitions. [2023-11-29 06:52:14,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 6 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2023-11-29 06:52:14,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2744 states and 3497 transitions. [2023-11-29 06:52:14,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-11-29 06:52:14,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:14,152 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:52:14,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 06:52:14,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 06:52:14,353 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:52:14,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:14,353 INFO L85 PathProgramCache]: Analyzing trace with hash 132039149, now seen corresponding path program 1 times [2023-11-29 06:52:14,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:14,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280127203] [2023-11-29 06:52:14,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:14,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:14,363 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:52:14,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1066653078] [2023-11-29 06:52:14,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:14,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:14,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:14,364 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:14,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 06:52:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:14,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:52:14,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:14,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1699 backedges. 0 proven. 1551 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:52:14,806 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:52:15,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1699 backedges. 0 proven. 399 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-29 06:52:15,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:15,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280127203] [2023-11-29 06:52:15,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:52:15,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066653078] [2023-11-29 06:52:15,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066653078] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:52:15,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:52:15,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 34 [2023-11-29 06:52:15,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467839634] [2023-11-29 06:52:15,216 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:52:15,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 06:52:15,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:15,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 06:52:15,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=845, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 06:52:15,218 INFO L87 Difference]: Start difference. First operand 2744 states and 3497 transitions. Second operand has 34 states, 34 states have (on average 9.235294117647058) internal successors, (314), 34 states have internal predecessors, (314), 14 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 14 states have call predecessors, (52), 14 states have call successors, (52) [2023-11-29 06:52:16,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:16,563 INFO L93 Difference]: Finished difference Result 3500 states and 4420 transitions. [2023-11-29 06:52:16,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-11-29 06:52:16,563 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 9.235294117647058) internal successors, (314), 34 states have internal predecessors, (314), 14 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 14 states have call predecessors, (52), 14 states have call successors, (52) Word has length 276 [2023-11-29 06:52:16,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:16,570 INFO L225 Difference]: With dead ends: 3500 [2023-11-29 06:52:16,570 INFO L226 Difference]: Without dead ends: 2822 [2023-11-29 06:52:16,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1071 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1287, Invalid=3543, Unknown=0, NotChecked=0, Total=4830 [2023-11-29 06:52:16,573 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 370 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:16,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 1028 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:52:16,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2023-11-29 06:52:17,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 2729. [2023-11-29 06:52:17,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2729 states, 2297 states have (on average 1.1562908141053547) internal successors, (2656), 2315 states have internal predecessors, (2656), 373 states have call successors, (373), 45 states have call predecessors, (373), 45 states have return successors, (373), 368 states have call predecessors, (373), 373 states have call successors, (373) [2023-11-29 06:52:17,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2729 states to 2729 states and 3402 transitions. [2023-11-29 06:52:17,172 INFO L78 Accepts]: Start accepts. Automaton has 2729 states and 3402 transitions. Word has length 276 [2023-11-29 06:52:17,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:17,173 INFO L495 AbstractCegarLoop]: Abstraction has 2729 states and 3402 transitions. [2023-11-29 06:52:17,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 9.235294117647058) internal successors, (314), 34 states have internal predecessors, (314), 14 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 14 states have call predecessors, (52), 14 states have call successors, (52) [2023-11-29 06:52:17,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2729 states and 3402 transitions. [2023-11-29 06:52:17,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-11-29 06:52:17,175 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:17,175 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 06:52:17,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 06:52:17,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:17,375 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:52:17,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:17,376 INFO L85 PathProgramCache]: Analyzing trace with hash -719711822, now seen corresponding path program 2 times [2023-11-29 06:52:17,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:17,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26463353] [2023-11-29 06:52:17,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:17,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:17,385 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:52:17,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2123631691] [2023-11-29 06:52:17,385 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:52:17,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:17,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:17,386 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:17,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 06:52:17,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:52:17,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:52:17,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 06:52:17,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:17,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1619 backedges. 0 proven. 1491 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-29 06:52:17,786 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:52:18,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1619 backedges. 0 proven. 319 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-11-29 06:52:18,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:18,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26463353] [2023-11-29 06:52:18,165 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:52:18,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123631691] [2023-11-29 06:52:18,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123631691] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:52:18,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:52:18,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 38 [2023-11-29 06:52:18,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225222917] [2023-11-29 06:52:18,166 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:52:18,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-29 06:52:18,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:18,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-29 06:52:18,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 06:52:18,169 INFO L87 Difference]: Start difference. First operand 2729 states and 3402 transitions. Second operand has 38 states, 38 states have (on average 8.5) internal successors, (323), 38 states have internal predecessors, (323), 16 states have call successors, (52), 9 states have call predecessors, (52), 9 states have return successors, (52), 16 states have call predecessors, (52), 16 states have call successors, (52) [2023-11-29 06:52:19,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:19,646 INFO L93 Difference]: Finished difference Result 3400 states and 4240 transitions. [2023-11-29 06:52:19,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-11-29 06:52:19,646 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 8.5) internal successors, (323), 38 states have internal predecessors, (323), 16 states have call successors, (52), 9 states have call predecessors, (52), 9 states have return successors, (52), 16 states have call predecessors, (52), 16 states have call successors, (52) Word has length 279 [2023-11-29 06:52:19,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:19,652 INFO L225 Difference]: With dead ends: 3400 [2023-11-29 06:52:19,652 INFO L226 Difference]: Without dead ends: 2926 [2023-11-29 06:52:19,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1520 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1450, Invalid=4870, Unknown=0, NotChecked=0, Total=6320 [2023-11-29 06:52:19,654 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 398 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:19,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 925 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:52:19,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2023-11-29 06:52:20,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 2627. [2023-11-29 06:52:20,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2212 states have (on average 1.1541591320072333) internal successors, (2553), 2230 states have internal predecessors, (2553), 361 states have call successors, (361), 40 states have call predecessors, (361), 40 states have return successors, (361), 356 states have call predecessors, (361), 361 states have call successors, (361) [2023-11-29 06:52:20,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 3275 transitions. [2023-11-29 06:52:20,184 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 3275 transitions. Word has length 279 [2023-11-29 06:52:20,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:20,185 INFO L495 AbstractCegarLoop]: Abstraction has 2627 states and 3275 transitions. [2023-11-29 06:52:20,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 8.5) internal successors, (323), 38 states have internal predecessors, (323), 16 states have call successors, (52), 9 states have call predecessors, (52), 9 states have return successors, (52), 16 states have call predecessors, (52), 16 states have call successors, (52) [2023-11-29 06:52:20,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 3275 transitions. [2023-11-29 06:52:20,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-11-29 06:52:20,187 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:20,187 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:52:20,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 06:52:20,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2023-11-29 06:52:20,388 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:52:20,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:20,388 INFO L85 PathProgramCache]: Analyzing trace with hash 286809528, now seen corresponding path program 2 times [2023-11-29 06:52:20,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:20,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506643540] [2023-11-29 06:52:20,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:20,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:20,400 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:52:20,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218268] [2023-11-29 06:52:20,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:52:20,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:20,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:20,401 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:20,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 06:52:20,491 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:52:20,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:52:20,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:52:20,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:20,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1783 backedges. 617 proven. 187 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2023-11-29 06:52:20,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:52:20,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1783 backedges. 177 proven. 187 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2023-11-29 06:52:20,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:20,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506643540] [2023-11-29 06:52:20,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:52:20,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218268] [2023-11-29 06:52:20,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218268] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:52:20,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:52:20,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2023-11-29 06:52:20,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434375795] [2023-11-29 06:52:20,920 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:52:20,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:52:20,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:20,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:52:20,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:52:20,922 INFO L87 Difference]: Start difference. First operand 2627 states and 3275 transitions. Second operand has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 11 states have internal predecessors, (163), 9 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) [2023-11-29 06:52:22,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:22,687 INFO L93 Difference]: Finished difference Result 4559 states and 5733 transitions. [2023-11-29 06:52:22,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:52:22,688 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 11 states have internal predecessors, (163), 9 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) Word has length 288 [2023-11-29 06:52:22,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:22,694 INFO L225 Difference]: With dead ends: 4559 [2023-11-29 06:52:22,694 INFO L226 Difference]: Without dead ends: 3315 [2023-11-29 06:52:22,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 564 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:52:22,697 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 397 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:22,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 791 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:52:22,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3315 states. [2023-11-29 06:52:23,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3315 to 2938. [2023-11-29 06:52:23,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2938 states, 2470 states have (on average 1.151012145748988) internal successors, (2843), 2488 states have internal predecessors, (2843), 414 states have call successors, (414), 40 states have call predecessors, (414), 40 states have return successors, (414), 409 states have call predecessors, (414), 414 states have call successors, (414) [2023-11-29 06:52:23,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2938 states to 2938 states and 3671 transitions. [2023-11-29 06:52:23,281 INFO L78 Accepts]: Start accepts. Automaton has 2938 states and 3671 transitions. Word has length 288 [2023-11-29 06:52:23,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:23,281 INFO L495 AbstractCegarLoop]: Abstraction has 2938 states and 3671 transitions. [2023-11-29 06:52:23,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 11 states have internal predecessors, (163), 9 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 9 states have call predecessors, (33), 9 states have call successors, (33) [2023-11-29 06:52:23,282 INFO L276 IsEmpty]: Start isEmpty. Operand 2938 states and 3671 transitions. [2023-11-29 06:52:23,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-11-29 06:52:23,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:23,284 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-29 06:52:23,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 06:52:23,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:23,484 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:52:23,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:23,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1420051493, now seen corresponding path program 4 times [2023-11-29 06:52:23,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:23,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58518592] [2023-11-29 06:52:23,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:23,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:23,494 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:52:23,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1410895483] [2023-11-29 06:52:23,494 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 06:52:23,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:23,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:23,495 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:23,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 06:52:23,586 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 06:52:23,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:52:23,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:52:23,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:24,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1857 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-11-29 06:52:24,247 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:52:24,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:24,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58518592] [2023-11-29 06:52:24,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:52:24,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410895483] [2023-11-29 06:52:24,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410895483] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:52:24,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:52:24,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 06:52:24,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068053431] [2023-11-29 06:52:24,554 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:52:24,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:52:24,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:24,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:52:24,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:52:24,555 INFO L87 Difference]: Start difference. First operand 2938 states and 3671 transitions. Second operand has 14 states, 13 states have (on average 12.384615384615385) internal successors, (161), 14 states have internal predecessors, (161), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) [2023-11-29 06:52:25,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:25,784 INFO L93 Difference]: Finished difference Result 3000 states and 3736 transitions. [2023-11-29 06:52:25,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:52:25,784 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.384615384615385) internal successors, (161), 14 states have internal predecessors, (161), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) Word has length 298 [2023-11-29 06:52:25,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:25,787 INFO L225 Difference]: With dead ends: 3000 [2023-11-29 06:52:25,788 INFO L226 Difference]: Without dead ends: 2888 [2023-11-29 06:52:25,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:52:25,788 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 140 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:25,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 422 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:52:25,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2023-11-29 06:52:26,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 2880. [2023-11-29 06:52:26,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2880 states, 2421 states have (on average 1.1536555142503098) internal successors, (2793), 2439 states have internal predecessors, (2793), 405 states have call successors, (405), 40 states have call predecessors, (405), 40 states have return successors, (405), 400 states have call predecessors, (405), 405 states have call successors, (405) [2023-11-29 06:52:26,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3603 transitions. [2023-11-29 06:52:26,333 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3603 transitions. Word has length 298 [2023-11-29 06:52:26,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:26,333 INFO L495 AbstractCegarLoop]: Abstraction has 2880 states and 3603 transitions. [2023-11-29 06:52:26,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.384615384615385) internal successors, (161), 14 states have internal predecessors, (161), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) [2023-11-29 06:52:26,333 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3603 transitions. [2023-11-29 06:52:26,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2023-11-29 06:52:26,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:26,335 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:52:26,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 06:52:26,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:26,536 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:52:26,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:26,536 INFO L85 PathProgramCache]: Analyzing trace with hash 637296895, now seen corresponding path program 3 times [2023-11-29 06:52:26,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:26,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481105483] [2023-11-29 06:52:26,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:26,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:26,545 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:52:26,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1993838731] [2023-11-29 06:52:26,545 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:52:26,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:26,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:26,546 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:26,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 06:52:26,606 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 06:52:26,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:52:26,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:52:26,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:27,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2386 backedges. 370 proven. 62 refuted. 0 times theorem prover too weak. 1954 trivial. 0 not checked. [2023-11-29 06:52:27,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:52:28,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:28,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481105483] [2023-11-29 06:52:28,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:52:28,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993838731] [2023-11-29 06:52:28,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993838731] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:52:28,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:52:28,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:52:28,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014429609] [2023-11-29 06:52:28,191 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:52:28,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:52:28,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:28,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:52:28,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:52:28,193 INFO L87 Difference]: Start difference. First operand 2880 states and 3603 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:52:33,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:33,974 INFO L93 Difference]: Finished difference Result 3428 states and 4325 transitions. [2023-11-29 06:52:33,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 06:52:33,975 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 329 [2023-11-29 06:52:33,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:33,979 INFO L225 Difference]: With dead ends: 3428 [2023-11-29 06:52:33,979 INFO L226 Difference]: Without dead ends: 3424 [2023-11-29 06:52:33,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:52:33,980 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 314 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 32 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:33,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 494 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 885 Invalid, 2 Unknown, 0 Unchecked, 4.0s Time] [2023-11-29 06:52:33,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3424 states. [2023-11-29 06:52:34,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3424 to 3183. [2023-11-29 06:52:34,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3183 states, 2674 states have (on average 1.1290201944652207) internal successors, (3019), 2692 states have internal predecessors, (3019), 455 states have call successors, (455), 40 states have call predecessors, (455), 40 states have return successors, (455), 450 states have call predecessors, (455), 455 states have call successors, (455) [2023-11-29 06:52:34,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3183 states to 3183 states and 3929 transitions. [2023-11-29 06:52:34,650 INFO L78 Accepts]: Start accepts. Automaton has 3183 states and 3929 transitions. Word has length 329 [2023-11-29 06:52:34,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:34,650 INFO L495 AbstractCegarLoop]: Abstraction has 3183 states and 3929 transitions. [2023-11-29 06:52:34,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:52:34,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3183 states and 3929 transitions. [2023-11-29 06:52:34,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2023-11-29 06:52:34,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:34,653 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-29 06:52:34,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 06:52:34,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-29 06:52:34,853 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:52:34,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:34,854 INFO L85 PathProgramCache]: Analyzing trace with hash -322596254, now seen corresponding path program 5 times [2023-11-29 06:52:34,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:34,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939048032] [2023-11-29 06:52:34,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:34,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:34,866 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:52:34,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [86808138] [2023-11-29 06:52:34,867 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 06:52:34,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:34,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:34,868 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:34,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 06:52:34,990 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2023-11-29 06:52:34,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:52:34,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:52:34,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:35,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2452 backedges. 0 proven. 468 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2023-11-29 06:52:35,830 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:52:36,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:36,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939048032] [2023-11-29 06:52:36,013 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:52:36,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86808138] [2023-11-29 06:52:36,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86808138] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:52:36,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:52:36,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 06:52:36,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808911182] [2023-11-29 06:52:36,013 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:52:36,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 06:52:36,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:36,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 06:52:36,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:52:36,015 INFO L87 Difference]: Start difference. First operand 3183 states and 3929 transitions. Second operand has 17 states, 16 states have (on average 11.375) internal successors, (182), 17 states have internal predecessors, (182), 12 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) [2023-11-29 06:52:37,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:37,433 INFO L93 Difference]: Finished difference Result 3286 states and 4047 transitions. [2023-11-29 06:52:37,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:52:37,433 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 11.375) internal successors, (182), 17 states have internal predecessors, (182), 12 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) Word has length 339 [2023-11-29 06:52:37,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:37,436 INFO L225 Difference]: With dead ends: 3286 [2023-11-29 06:52:37,437 INFO L226 Difference]: Without dead ends: 3224 [2023-11-29 06:52:37,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:52:37,437 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 147 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:37,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 849 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:52:37,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3224 states. [2023-11-29 06:52:38,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3224 to 3126. [2023-11-29 06:52:38,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3126 states, 2626 states have (on average 1.1306169078446306) internal successors, (2969), 2643 states have internal predecessors, (2969), 448 states have call successors, (448), 38 states have call predecessors, (448), 38 states have return successors, (448), 444 states have call predecessors, (448), 448 states have call successors, (448) [2023-11-29 06:52:38,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 3865 transitions. [2023-11-29 06:52:38,033 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 3865 transitions. Word has length 339 [2023-11-29 06:52:38,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:38,033 INFO L495 AbstractCegarLoop]: Abstraction has 3126 states and 3865 transitions. [2023-11-29 06:52:38,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 11.375) internal successors, (182), 17 states have internal predecessors, (182), 12 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) [2023-11-29 06:52:38,033 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 3865 transitions. [2023-11-29 06:52:38,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2023-11-29 06:52:38,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:38,036 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-29 06:52:38,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 06:52:38,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 06:52:38,237 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:52:38,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:38,237 INFO L85 PathProgramCache]: Analyzing trace with hash 373522363, now seen corresponding path program 6 times [2023-11-29 06:52:38,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:38,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599597302] [2023-11-29 06:52:38,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:38,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:38,248 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:52:38,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [266401598] [2023-11-29 06:52:38,249 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 06:52:38,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:38,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:38,249 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:38,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 06:52:39,368 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2023-11-29 06:52:39,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:52:39,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-29 06:52:39,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:47,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 473 proven. 367 refuted. 0 times theorem prover too weak. 2296 trivial. 0 not checked. [2023-11-29 06:52:47,421 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:52:50,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:50,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599597302] [2023-11-29 06:52:50,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:52:50,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266401598] [2023-11-29 06:52:50,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266401598] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:52:50,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:52:50,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 06:52:50,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167726397] [2023-11-29 06:52:50,258 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:52:50,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 06:52:50,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:50,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 06:52:50,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=549, Unknown=3, NotChecked=0, Total=650 [2023-11-29 06:52:50,260 INFO L87 Difference]: Start difference. First operand 3126 states and 3865 transitions. Second operand has 19 states, 17 states have (on average 7.882352941176471) internal successors, (134), 18 states have internal predecessors, (134), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 8 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 06:52:54,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:52:58,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:00,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:01,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:03,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:06,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:09,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:11,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:14,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:17,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:21,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:25,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:29,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:33,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:37,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:46,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:50,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:55,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:54:03,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:54:16,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:54:24,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:54:29,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:54:33,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:33,494 INFO L93 Difference]: Finished difference Result 3721 states and 4616 transitions. [2023-11-29 06:54:33,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 06:54:33,495 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 7.882352941176471) internal successors, (134), 18 states have internal predecessors, (134), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 8 states have call predecessors, (21), 6 states have call successors, (21) Word has length 380 [2023-11-29 06:54:33,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:33,500 INFO L225 Difference]: With dead ends: 3721 [2023-11-29 06:54:33,500 INFO L226 Difference]: Without dead ends: 3663 [2023-11-29 06:54:33,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 21.4s TimeCoverageRelationStatistics Valid=518, Invalid=2029, Unknown=3, NotChecked=0, Total=2550 [2023-11-29 06:54:33,501 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 407 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 61 mSolverCounterUnsat, 34 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 34 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:33,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1038 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1838 Invalid, 34 Unknown, 0 Unchecked, 89.5s Time] [2023-11-29 06:54:33,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3663 states. [2023-11-29 06:54:34,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3663 to 2693. [2023-11-29 06:54:34,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2693 states, 2260 states have (on average 1.1300884955752213) internal successors, (2554), 2276 states have internal predecessors, (2554), 381 states have call successors, (381), 38 states have call predecessors, (381), 38 states have return successors, (381), 378 states have call predecessors, (381), 381 states have call successors, (381) [2023-11-29 06:54:34,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2693 states to 2693 states and 3316 transitions. [2023-11-29 06:54:34,108 INFO L78 Accepts]: Start accepts. Automaton has 2693 states and 3316 transitions. Word has length 380 [2023-11-29 06:54:34,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:34,109 INFO L495 AbstractCegarLoop]: Abstraction has 2693 states and 3316 transitions. [2023-11-29 06:54:34,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 7.882352941176471) internal successors, (134), 18 states have internal predecessors, (134), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 8 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 06:54:34,109 INFO L276 IsEmpty]: Start isEmpty. Operand 2693 states and 3316 transitions. [2023-11-29 06:54:34,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2023-11-29 06:54:34,112 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:34,112 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 06:54:34,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2023-11-29 06:54:34,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-29 06:54:34,312 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:54:34,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:34,313 INFO L85 PathProgramCache]: Analyzing trace with hash 2140053012, now seen corresponding path program 2 times [2023-11-29 06:54:34,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:34,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681457617] [2023-11-29 06:54:34,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:34,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:34,324 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:34,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [885563532] [2023-11-29 06:54:34,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:54:34,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:34,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:34,325 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:34,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 06:54:34,373 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 06:54:34,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:54:34,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:54:34,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:34,412 INFO L134 CoverageAnalysis]: Checked inductivity of 3955 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 3604 trivial. 0 not checked. [2023-11-29 06:54:34,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:54:34,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:34,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681457617] [2023-11-29 06:54:34,412 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:34,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885563532] [2023-11-29 06:54:34,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885563532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:54:34,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:54:34,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:54:34,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386138368] [2023-11-29 06:54:34,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:54:34,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:54:34,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:34,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:54:34,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:54:34,414 INFO L87 Difference]: Start difference. First operand 2693 states and 3316 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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) [2023-11-29 06:54:35,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:35,004 INFO L93 Difference]: Finished difference Result 2699 states and 3319 transitions. [2023-11-29 06:54:35,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:54:35,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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 420 [2023-11-29 06:54:35,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:35,008 INFO L225 Difference]: With dead ends: 2699 [2023-11-29 06:54:35,008 INFO L226 Difference]: Without dead ends: 2698 [2023-11-29 06:54:35,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:54:35,009 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 15 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:35,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 238 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:54:35,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2023-11-29 06:54:35,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2697. [2023-11-29 06:54:35,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2697 states, 2263 states have (on average 1.1246133451171012) internal successors, (2545), 2279 states have internal predecessors, (2545), 381 states have call successors, (381), 39 states have call predecessors, (381), 39 states have return successors, (381), 378 states have call predecessors, (381), 381 states have call successors, (381) [2023-11-29 06:54:35,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2697 states to 2697 states and 3307 transitions. [2023-11-29 06:54:35,576 INFO L78 Accepts]: Start accepts. Automaton has 2697 states and 3307 transitions. Word has length 420 [2023-11-29 06:54:35,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:35,577 INFO L495 AbstractCegarLoop]: Abstraction has 2697 states and 3307 transitions. [2023-11-29 06:54:35,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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) [2023-11-29 06:54:35,577 INFO L276 IsEmpty]: Start isEmpty. Operand 2697 states and 3307 transitions. [2023-11-29 06:54:35,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2023-11-29 06:54:35,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:35,580 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2023-11-29 06:54:35,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-29 06:54:35,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-29 06:54:35,781 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:54:35,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:35,781 INFO L85 PathProgramCache]: Analyzing trace with hash 745002666, now seen corresponding path program 1 times [2023-11-29 06:54:35,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:35,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24850214] [2023-11-29 06:54:35,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:35,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:35,793 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:35,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [657950067] [2023-11-29 06:54:35,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:35,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:35,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:35,794 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:35,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 06:54:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:35,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 06:54:35,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:36,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3981 backedges. 17 proven. 3760 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-29 06:54:36,513 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:37,306 INFO L134 CoverageAnalysis]: Checked inductivity of 3981 backedges. 17 proven. 844 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-11-29 06:54:37,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:37,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24850214] [2023-11-29 06:54:37,307 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:37,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657950067] [2023-11-29 06:54:37,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657950067] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:54:37,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:54:37,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 28] total 54 [2023-11-29 06:54:37,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889921809] [2023-11-29 06:54:37,308 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:37,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2023-11-29 06:54:37,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:37,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2023-11-29 06:54:37,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=635, Invalid=2227, Unknown=0, NotChecked=0, Total=2862 [2023-11-29 06:54:37,311 INFO L87 Difference]: Start difference. First operand 2697 states and 3307 transitions. Second operand has 54 states, 54 states have (on average 9.037037037037036) internal successors, (488), 54 states have internal predecessors, (488), 24 states have call successors, (80), 13 states have call predecessors, (80), 13 states have return successors, (80), 24 states have call predecessors, (80), 24 states have call successors, (80) [2023-11-29 06:54:40,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:40,266 INFO L93 Difference]: Finished difference Result 5068 states and 6282 transitions. [2023-11-29 06:54:40,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-11-29 06:54:40,267 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 9.037037037037036) internal successors, (488), 54 states have internal predecessors, (488), 24 states have call successors, (80), 13 states have call predecessors, (80), 13 states have return successors, (80), 24 states have call predecessors, (80), 24 states have call successors, (80) Word has length 428 [2023-11-29 06:54:40,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:40,271 INFO L225 Difference]: With dead ends: 5068 [2023-11-29 06:54:40,271 INFO L226 Difference]: Without dead ends: 4034 [2023-11-29 06:54:40,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 921 GetRequests, 802 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3842 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=3358, Invalid=11162, Unknown=0, NotChecked=0, Total=14520 [2023-11-29 06:54:40,274 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 775 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:40,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 1494 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:54:40,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2023-11-29 06:54:41,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 3807. [2023-11-29 06:54:41,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3807 states, 3191 states have (on average 1.1024757129426512) internal successors, (3518), 3208 states have internal predecessors, (3518), 543 states have call successors, (543), 59 states have call predecessors, (543), 59 states have return successors, (543), 539 states have call predecessors, (543), 543 states have call successors, (543) [2023-11-29 06:54:41,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 4604 transitions. [2023-11-29 06:54:41,145 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 4604 transitions. Word has length 428 [2023-11-29 06:54:41,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:41,145 INFO L495 AbstractCegarLoop]: Abstraction has 3807 states and 4604 transitions. [2023-11-29 06:54:41,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 9.037037037037036) internal successors, (488), 54 states have internal predecessors, (488), 24 states have call successors, (80), 13 states have call predecessors, (80), 13 states have return successors, (80), 24 states have call predecessors, (80), 24 states have call successors, (80) [2023-11-29 06:54:41,146 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 4604 transitions. [2023-11-29 06:54:41,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2023-11-29 06:54:41,149 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:41,149 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 06:54:41,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 06:54:41,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 06:54:41,350 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:54:41,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:41,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1044277621, now seen corresponding path program 2 times [2023-11-29 06:54:41,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:41,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422359579] [2023-11-29 06:54:41,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:41,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:41,373 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:41,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1120021979] [2023-11-29 06:54:41,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:54:41,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:41,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:41,374 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:41,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 06:54:41,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:54:41,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:54:41,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:54:41,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:42,092 INFO L134 CoverageAnalysis]: Checked inductivity of 4433 backedges. 0 proven. 989 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-11-29 06:54:42,092 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:42,683 INFO L134 CoverageAnalysis]: Checked inductivity of 4433 backedges. 0 proven. 989 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-11-29 06:54:42,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:42,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422359579] [2023-11-29 06:54:42,683 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:42,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120021979] [2023-11-29 06:54:42,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120021979] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:54:42,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:54:42,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-11-29 06:54:42,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526724653] [2023-11-29 06:54:42,684 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:42,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 06:54:42,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:42,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 06:54:42,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=423, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:54:42,686 INFO L87 Difference]: Start difference. First operand 3807 states and 4604 transitions. Second operand has 26 states, 25 states have (on average 18.2) internal successors, (455), 26 states have internal predecessors, (455), 24 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 24 states have call predecessors, (84), 24 states have call successors, (84) [2023-11-29 06:54:47,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:47,737 INFO L93 Difference]: Finished difference Result 6159 states and 7471 transitions. [2023-11-29 06:54:47,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-11-29 06:54:47,738 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 18.2) internal successors, (455), 26 states have internal predecessors, (455), 24 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 24 states have call predecessors, (84), 24 states have call successors, (84) Word has length 437 [2023-11-29 06:54:47,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:47,745 INFO L225 Difference]: With dead ends: 6159 [2023-11-29 06:54:47,746 INFO L226 Difference]: Without dead ends: 5963 [2023-11-29 06:54:47,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 906 GetRequests, 848 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1118 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1286, Invalid=2254, Unknown=0, NotChecked=0, Total=3540 [2023-11-29 06:54:47,748 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 2624 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2642 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:47,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2642 Valid, 1133 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 06:54:47,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2023-11-29 06:54:48,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 4306. [2023-11-29 06:54:48,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4306 states, 3616 states have (on average 1.1009402654867257) internal successors, (3981), 3632 states have internal predecessors, (3981), 619 states have call successors, (619), 57 states have call predecessors, (619), 57 states have return successors, (619), 616 states have call predecessors, (619), 619 states have call successors, (619) [2023-11-29 06:54:48,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4306 states to 4306 states and 5219 transitions. [2023-11-29 06:54:48,840 INFO L78 Accepts]: Start accepts. Automaton has 4306 states and 5219 transitions. Word has length 437 [2023-11-29 06:54:48,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:48,841 INFO L495 AbstractCegarLoop]: Abstraction has 4306 states and 5219 transitions. [2023-11-29 06:54:48,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 18.2) internal successors, (455), 26 states have internal predecessors, (455), 24 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 24 states have call predecessors, (84), 24 states have call successors, (84) [2023-11-29 06:54:48,841 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states and 5219 transitions. [2023-11-29 06:54:48,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2023-11-29 06:54:48,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:48,845 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:48,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-29 06:54:49,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 06:54:49,045 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:54:49,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:49,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1391200460, now seen corresponding path program 3 times [2023-11-29 06:54:49,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:49,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927694874] [2023-11-29 06:54:49,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:49,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:49,059 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:49,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1869062259] [2023-11-29 06:54:49,059 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:54:49,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:49,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:49,060 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:49,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 06:54:49,238 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2023-11-29 06:54:49,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:54:49,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:54:49,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:49,642 INFO L134 CoverageAnalysis]: Checked inductivity of 5225 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2023-11-29 06:54:49,642 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:50,581 INFO L134 CoverageAnalysis]: Checked inductivity of 5225 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2023-11-29 06:54:50,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:50,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927694874] [2023-11-29 06:54:50,581 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:50,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869062259] [2023-11-29 06:54:50,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869062259] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:54:50,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:54:50,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-11-29 06:54:50,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697500431] [2023-11-29 06:54:50,582 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:50,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 06:54:50,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:50,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 06:54:50,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=429, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:54:50,585 INFO L87 Difference]: Start difference. First operand 4306 states and 5219 transitions. Second operand has 26 states, 25 states have (on average 18.4) internal successors, (460), 26 states have internal predecessors, (460), 25 states have call successors, (88), 1 states have call predecessors, (88), 1 states have return successors, (88), 25 states have call predecessors, (88), 25 states have call successors, (88) [2023-11-29 06:54:59,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:59,633 INFO L93 Difference]: Finished difference Result 7624 states and 9369 transitions. [2023-11-29 06:54:59,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-29 06:54:59,634 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 18.4) internal successors, (460), 26 states have internal predecessors, (460), 25 states have call successors, (88), 1 states have call predecessors, (88), 1 states have return successors, (88), 25 states have call predecessors, (88), 25 states have call successors, (88) Word has length 460 [2023-11-29 06:54:59,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:59,642 INFO L225 Difference]: With dead ends: 7624 [2023-11-29 06:54:59,643 INFO L226 Difference]: Without dead ends: 7623 [2023-11-29 06:54:59,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 976 GetRequests, 914 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1147 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1234, Invalid=2798, Unknown=0, NotChecked=0, Total=4032 [2023-11-29 06:54:59,645 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 2955 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 5277 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2965 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 5545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 5277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:59,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2965 Valid, 2696 Invalid, 5545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 5277 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-11-29 06:54:59,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7623 states. [2023-11-29 06:55:01,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7623 to 5277. [2023-11-29 06:55:01,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 4431 states have (on average 1.132701421800948) internal successors, (5019), 4447 states have internal predecessors, (5019), 775 states have call successors, (775), 57 states have call predecessors, (775), 57 states have return successors, (775), 772 states have call predecessors, (775), 775 states have call successors, (775) [2023-11-29 06:55:01,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 6569 transitions. [2023-11-29 06:55:01,078 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 6569 transitions. Word has length 460 [2023-11-29 06:55:01,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:01,078 INFO L495 AbstractCegarLoop]: Abstraction has 5277 states and 6569 transitions. [2023-11-29 06:55:01,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 18.4) internal successors, (460), 26 states have internal predecessors, (460), 25 states have call successors, (88), 1 states have call predecessors, (88), 1 states have return successors, (88), 25 states have call predecessors, (88), 25 states have call successors, (88) [2023-11-29 06:55:01,079 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 6569 transitions. [2023-11-29 06:55:01,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2023-11-29 06:55:01,082 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:01,082 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:01,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2023-11-29 06:55:01,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:01,283 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:55:01,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:01,283 INFO L85 PathProgramCache]: Analyzing trace with hash -177541195, now seen corresponding path program 3 times [2023-11-29 06:55:01,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:01,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721462936] [2023-11-29 06:55:01,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:01,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:01,295 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:01,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1884762505] [2023-11-29 06:55:01,295 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:55:01,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:01,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:01,296 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:01,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 06:55:01,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-29 06:55:01,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:55:01,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:55:01,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:01,648 INFO L134 CoverageAnalysis]: Checked inductivity of 5235 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 5004 trivial. 0 not checked. [2023-11-29 06:55:01,648 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:02,011 INFO L134 CoverageAnalysis]: Checked inductivity of 5235 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 5004 trivial. 0 not checked. [2023-11-29 06:55:02,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:02,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721462936] [2023-11-29 06:55:02,012 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:02,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884762505] [2023-11-29 06:55:02,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884762505] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:55:02,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:55:02,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 06:55:02,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384477335] [2023-11-29 06:55:02,013 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:02,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:55:02,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:02,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:55:02,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:55:02,014 INFO L87 Difference]: Start difference. First operand 5277 states and 6569 transitions. Second operand has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 06:55:03,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:03,540 INFO L93 Difference]: Finished difference Result 5427 states and 6745 transitions. [2023-11-29 06:55:03,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:55:03,540 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 461 [2023-11-29 06:55:03,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:03,545 INFO L225 Difference]: With dead ends: 5427 [2023-11-29 06:55:03,546 INFO L226 Difference]: Without dead ends: 5426 [2023-11-29 06:55:03,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 926 GetRequests, 912 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:55:03,547 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 367 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:03,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 381 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:55:03,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5426 states. [2023-11-29 06:55:04,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5426 to 5277. [2023-11-29 06:55:04,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 4431 states have (on average 1.1299932295192958) internal successors, (5007), 4447 states have internal predecessors, (5007), 775 states have call successors, (775), 57 states have call predecessors, (775), 57 states have return successors, (775), 772 states have call predecessors, (775), 775 states have call successors, (775) [2023-11-29 06:55:04,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 6557 transitions. [2023-11-29 06:55:04,859 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 6557 transitions. Word has length 461 [2023-11-29 06:55:04,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:04,860 INFO L495 AbstractCegarLoop]: Abstraction has 5277 states and 6557 transitions. [2023-11-29 06:55:04,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 06:55:04,860 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 6557 transitions. [2023-11-29 06:55:04,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2023-11-29 06:55:04,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:04,864 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-29 06:55:04,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 06:55:05,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:05,065 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:55:05,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:05,065 INFO L85 PathProgramCache]: Analyzing trace with hash 2136948677, now seen corresponding path program 2 times [2023-11-29 06:55:05,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:05,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823546323] [2023-11-29 06:55:05,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:05,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:05,079 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:05,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1664701917] [2023-11-29 06:55:05,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:55:05,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:05,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:05,081 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:05,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 06:55:05,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:55:05,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:55:05,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:55:05,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:05,463 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 2676 proven. 426 refuted. 0 times theorem prover too weak. 2414 trivial. 0 not checked. [2023-11-29 06:55:05,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:05,789 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 636 proven. 426 refuted. 0 times theorem prover too weak. 4454 trivial. 0 not checked. [2023-11-29 06:55:05,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:05,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823546323] [2023-11-29 06:55:05,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:05,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664701917] [2023-11-29 06:55:05,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664701917] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:55:05,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:55:05,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 14 [2023-11-29 06:55:05,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44562996] [2023-11-29 06:55:05,790 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:05,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:55:05,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:05,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:55:05,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:55:05,792 INFO L87 Difference]: Start difference. First operand 5277 states and 6557 transitions. Second operand has 14 states, 14 states have (on average 17.285714285714285) internal successors, (242), 14 states have internal predecessors, (242), 12 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 12 states have call predecessors, (49), 12 states have call successors, (49) [2023-11-29 06:55:09,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:09,753 INFO L93 Difference]: Finished difference Result 9381 states and 11836 transitions. [2023-11-29 06:55:09,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 06:55:09,754 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 17.285714285714285) internal successors, (242), 14 states have internal predecessors, (242), 12 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 12 states have call predecessors, (49), 12 states have call successors, (49) Word has length 493 [2023-11-29 06:55:09,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:09,761 INFO L225 Difference]: With dead ends: 9381 [2023-11-29 06:55:09,761 INFO L226 Difference]: Without dead ends: 6357 [2023-11-29 06:55:09,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1009 GetRequests, 973 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=748, Unknown=0, NotChecked=0, Total=992 [2023-11-29 06:55:09,766 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 673 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 1966 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:09,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 1395 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1966 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:55:09,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6357 states. [2023-11-29 06:55:11,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6357 to 5434. [2023-11-29 06:55:11,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 4573 states have (on average 1.134266345943582) internal successors, (5187), 4588 states have internal predecessors, (5187), 799 states have call successors, (799), 48 states have call predecessors, (799), 48 states have return successors, (799), 797 states have call predecessors, (799), 799 states have call successors, (799) [2023-11-29 06:55:11,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 6785 transitions. [2023-11-29 06:55:11,161 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 6785 transitions. Word has length 493 [2023-11-29 06:55:11,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:11,162 INFO L495 AbstractCegarLoop]: Abstraction has 5434 states and 6785 transitions. [2023-11-29 06:55:11,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.285714285714285) internal successors, (242), 14 states have internal predecessors, (242), 12 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 12 states have call predecessors, (49), 12 states have call successors, (49) [2023-11-29 06:55:11,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 6785 transitions. [2023-11-29 06:55:11,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2023-11-29 06:55:11,167 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:11,167 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-29 06:55:11,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 06:55:11,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:11,367 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:55:11,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:11,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1710436318, now seen corresponding path program 3 times [2023-11-29 06:55:11,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:11,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828171584] [2023-11-29 06:55:11,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:11,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:11,382 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:11,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1650529096] [2023-11-29 06:55:11,383 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:55:11,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:11,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:11,383 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:11,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 06:55:11,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-29 06:55:11,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:55:11,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:55:11,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:11,520 INFO L134 CoverageAnalysis]: Checked inductivity of 6540 backedges. 736 proven. 0 refuted. 0 times theorem prover too weak. 5804 trivial. 0 not checked. [2023-11-29 06:55:11,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:55:11,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:11,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828171584] [2023-11-29 06:55:11,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:11,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650529096] [2023-11-29 06:55:11,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650529096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:55:11,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:55:11,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:55:11,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59924530] [2023-11-29 06:55:11,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:55:11,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:55:11,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:11,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:55:11,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:55:11,522 INFO L87 Difference]: Start difference. First operand 5434 states and 6785 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 06:55:12,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:12,936 INFO L93 Difference]: Finished difference Result 5482 states and 6849 transitions. [2023-11-29 06:55:12,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:55:12,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 534 [2023-11-29 06:55:12,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:12,942 INFO L225 Difference]: With dead ends: 5482 [2023-11-29 06:55:12,943 INFO L226 Difference]: Without dead ends: 5481 [2023-11-29 06:55:12,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:55:12,943 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 28 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:12,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 224 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:55:12,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5481 states. [2023-11-29 06:55:14,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5481 to 5474. [2023-11-29 06:55:14,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 4613 states have (on average 1.1320182094081943) internal successors, (5222), 4628 states have internal predecessors, (5222), 799 states have call successors, (799), 48 states have call predecessors, (799), 48 states have return successors, (799), 797 states have call predecessors, (799), 799 states have call successors, (799) [2023-11-29 06:55:14,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 6820 transitions. [2023-11-29 06:55:14,451 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 6820 transitions. Word has length 534 [2023-11-29 06:55:14,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:14,451 INFO L495 AbstractCegarLoop]: Abstraction has 5474 states and 6820 transitions. [2023-11-29 06:55:14,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 06:55:14,451 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 6820 transitions. [2023-11-29 06:55:14,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2023-11-29 06:55:14,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:14,456 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:14,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2023-11-29 06:55:14,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:14,657 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-29 06:55:14,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:14,657 INFO L85 PathProgramCache]: Analyzing trace with hash 116403383, now seen corresponding path program 3 times [2023-11-29 06:55:14,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:14,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548808423] [2023-11-29 06:55:14,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:14,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:14,672 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:14,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1507613845] [2023-11-29 06:55:14,672 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:55:14,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:14,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:14,673 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:14,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec063759-b139-4c88-b92a-0c5470b717cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 06:55:15,650 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-29 06:55:15,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:55:15,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-29 06:55:15,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:56:48,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6543 backedges. 614 proven. 1159 refuted. 0 times theorem prover too weak. 4770 trivial. 0 not checked. [2023-11-29 06:56:48,733 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:56:52,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:52,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548808423] [2023-11-29 06:56:52,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:56:52,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507613845] [2023-11-29 06:56:52,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507613845] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:56:52,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:56:52,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2023-11-29 06:56:52,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325142194] [2023-11-29 06:56:52,960 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:56:52,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 06:56:52,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:52,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 06:56:52,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=560, Unknown=3, NotChecked=0, Total=650 [2023-11-29 06:56:52,961 INFO L87 Difference]: Start difference. First operand 5474 states and 6820 transitions. Second operand has 22 states, 20 states have (on average 7.05) internal successors, (141), 21 states have internal predecessors, (141), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 6 states have call predecessors, (21), 8 states have call successors, (21) [2023-11-29 06:56:55,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:57:00,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:57:03,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:57:17,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:57:19,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:57:24,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:57:29,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:57:34,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:57:39,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:57:52,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:57:57,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:58:02,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.38s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:58:05,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:58:07,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:58:12,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:58:16,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:58:19,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:58:24,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:58:40,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:58:43,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:58:51,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:58:55,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:58:59,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:59:14,480 WARN L293 SmtUtils]: Spent 5.99s on a formula simplification. DAG size of input: 46 DAG size of output: 46 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:59:30,408 WARN L293 SmtUtils]: Spent 11.85s on a formula simplification. DAG size of input: 52 DAG size of output: 51 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:59:47,987 WARN L293 SmtUtils]: Spent 13.96s on a formula simplification. DAG size of input: 56 DAG size of output: 53 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:00:02,694 WARN L293 SmtUtils]: Spent 12.09s on a formula simplification. DAG size of input: 58 DAG size of output: 55 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:00:05,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:00:10,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:00:14,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:00:27,145 WARN L293 SmtUtils]: Spent 7.80s on a formula simplification. DAG size of input: 54 DAG size of output: 52 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:00:34,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:00:36,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:00:48,936 WARN L293 SmtUtils]: Spent 6.70s on a formula simplification. DAG size of input: 66 DAG size of output: 68 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:00:50,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:00:54,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:00:58,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:02,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:06,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:11,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:14,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:19,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:23,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:28,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:33,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:38,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:53,133 WARN L293 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 55 DAG size of output: 55 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:01:54,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:59,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:02:07,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:02:27,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:02:43,488 WARN L293 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 57 DAG size of output: 59 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:02:48,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:02:53,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:02:56,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:03:00,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:03:04,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:03:13,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:03:25,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:03:30,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:03:33,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:03:36,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:03:58,519 WARN L293 SmtUtils]: Spent 6.62s on a formula simplification. DAG size of input: 63 DAG size of output: 63 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:04:02,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:07,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:11,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:16,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:21,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:26,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:34,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:38,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:40,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:54,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:58,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:05:10,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:05:14,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:05:18,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]