./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound50.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound50.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 19:27:20,483 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:27:20,561 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:27:20,566 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:27:20,567 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:27:20,596 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:27:20,596 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:27:20,597 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:27:20,597 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:27:20,599 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:27:20,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:27:20,602 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:27:20,602 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:27:20,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:27:20,603 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:27:20,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:27:20,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:27:20,604 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:27:20,604 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:27:20,604 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:27:20,604 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:27:20,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:27:20,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:27:20,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:27:20,607 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:27:20,609 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:27:20,610 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:27:20,610 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:27:20,610 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:27:20,610 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:27:20,611 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:27:20,611 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:27:20,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:27:20,611 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:27:20,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:27:20,611 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:27:20,612 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:27:20,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:27:20,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:27:20,613 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:27:20,613 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:27:20,614 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:27:20,614 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:/storage/repos/certificate-witnesses-artifact/automizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:27:20,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:27:20,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:27:20,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:27:20,940 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:27:20,940 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:27:20,941 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound50.c [2024-09-12 19:27:22,339 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:27:22,536 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:27:22,536 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound50.c [2024-09-12 19:27:22,543 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/57ab50d7e/119d9aa358074b97964b48a3c3ce90ce/FLAG3e3a81141 [2024-09-12 19:27:22,554 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/57ab50d7e/119d9aa358074b97964b48a3c3ce90ce [2024-09-12 19:27:22,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:27:22,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:27:22,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:27:22,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:27:22,565 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:27:22,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:27:22" (1/1) ... [2024-09-12 19:27:22,566 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62d4077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:22, skipping insertion in model container [2024-09-12 19:27:22,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:27:22" (1/1) ... [2024-09-12 19:27:22,583 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:27:22,726 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound50.c[573,586] [2024-09-12 19:27:22,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:27:22,759 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:27:22,771 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound50.c[573,586] [2024-09-12 19:27:22,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:27:22,803 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:27:22,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:22 WrapperNode [2024-09-12 19:27:22,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:27:22,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:27:22,806 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:27:22,808 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:27:22,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:22" (1/1) ... [2024-09-12 19:27:22,818 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:22" (1/1) ... [2024-09-12 19:27:22,825 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:27:22,825 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:27:22,826 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:27:22,827 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:27:22,827 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:27:22,835 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:22" (1/1) ... [2024-09-12 19:27:22,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:22" (1/1) ... [2024-09-12 19:27:22,836 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:22" (1/1) ... [2024-09-12 19:27:22,847 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]. [2024-09-12 19:27:22,847 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:22" (1/1) ... [2024-09-12 19:27:22,847 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:22" (1/1) ... [2024-09-12 19:27:22,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:22" (1/1) ... [2024-09-12 19:27:22,857 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:22" (1/1) ... [2024-09-12 19:27:22,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:22" (1/1) ... [2024-09-12 19:27:22,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:22" (1/1) ... [2024-09-12 19:27:22,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:27:22,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:27:22,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:27:22,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:27:22,869 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:22" (1/1) ... [2024-09-12 19:27:22,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:27:22,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:22,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 19:27:22,902 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 19:27:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:27:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:27:22,946 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:27:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:27:22,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:27:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:27:22,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:27:22,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:27:22,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:27:22,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:27:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:27:22,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:27:23,003 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:27:23,006 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:27:23,209 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-09-12 19:27:23,210 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:27:23,231 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:27:23,232 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:27:23,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:27:23 BoogieIcfgContainer [2024-09-12 19:27:23,232 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:27:23,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:27:23,238 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:27:23,242 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:27:23,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:27:22" (1/3) ... [2024-09-12 19:27:23,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275d0e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:27:23, skipping insertion in model container [2024-09-12 19:27:23,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:27:22" (2/3) ... [2024-09-12 19:27:23,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275d0e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:27:23, skipping insertion in model container [2024-09-12 19:27:23,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:27:23" (3/3) ... [2024-09-12 19:27:23,245 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound50.c [2024-09-12 19:27:23,261 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:27:23,261 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2024-09-12 19:27:23,326 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:27:23,334 INFO L336 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@4fea6f32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:27:23,335 INFO L337 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-09-12 19:27:23,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 56 states have internal predecessors, (62), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:27:23,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 19:27:23,345 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:23,346 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:23,346 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:23,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:23,351 INFO L85 PathProgramCache]: Analyzing trace with hash 221323231, now seen corresponding path program 1 times [2024-09-12 19:27:23,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:23,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098126593] [2024-09-12 19:27:23,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:23,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:23,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:23,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:23,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:23,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:23,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:23,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098126593] [2024-09-12 19:27:23,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098126593] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:23,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:23,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:27:23,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874217109] [2024-09-12 19:27:23,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:23,566 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:27:23,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:23,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:27:23,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:27:23,589 INFO L87 Difference]: Start difference. First operand has 67 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 56 states have internal predecessors, (62), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:23,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:23,633 INFO L93 Difference]: Finished difference Result 128 states and 145 transitions. [2024-09-12 19:27:23,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:27:23,639 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 18 [2024-09-12 19:27:23,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:23,649 INFO L225 Difference]: With dead ends: 128 [2024-09-12 19:27:23,649 INFO L226 Difference]: Without dead ends: 63 [2024-09-12 19:27:23,653 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:27:23,658 INFO L434 NwaCegarLoop]: 68 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, 68 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 [2024-09-12 19:27:23,659 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:27:23,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-09-12 19:27:23,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-09-12 19:27:23,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 33 states have (on average 1.696969696969697) internal successors, (56), 54 states have internal predecessors, (56), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:27:23,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2024-09-12 19:27:23,699 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 18 [2024-09-12 19:27:23,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:23,701 INFO L474 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2024-09-12 19:27:23,701 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:23,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:23,705 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2024-09-12 19:27:23,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 19:27:23,706 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:23,706 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:23,706 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:27:23,707 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:23,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:23,707 INFO L85 PathProgramCache]: Analyzing trace with hash 979646126, now seen corresponding path program 1 times [2024-09-12 19:27:23,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:23,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577408528] [2024-09-12 19:27:23,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:23,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:23,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [792467693] [2024-09-12 19:27:23,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:23,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:23,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:23,748 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:23,750 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 19:27:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:23,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:27:23,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:23,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:23,846 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:23,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:23,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577408528] [2024-09-12 19:27:23,851 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:23,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792467693] [2024-09-12 19:27:23,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792467693] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:23,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:23,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:27:23,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940502387] [2024-09-12 19:27:23,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:23,853 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:27:23,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:23,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:27:23,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:27:23,855 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:24,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:24,022 INFO L93 Difference]: Finished difference Result 98 states and 110 transitions. [2024-09-12 19:27:24,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:27:24,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2024-09-12 19:27:24,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:24,025 INFO L225 Difference]: With dead ends: 98 [2024-09-12 19:27:24,025 INFO L226 Difference]: Without dead ends: 92 [2024-09-12 19:27:24,026 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:27:24,027 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 27 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:24,027 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 86 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:24,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-09-12 19:27:24,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 83. [2024-09-12 19:27:24,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 52 states have (on average 1.6730769230769231) internal successors, (87), 73 states have internal predecessors, (87), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:27:24,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 99 transitions. [2024-09-12 19:27:24,052 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 99 transitions. Word has length 18 [2024-09-12 19:27:24,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:24,054 INFO L474 AbstractCegarLoop]: Abstraction has 83 states and 99 transitions. [2024-09-12 19:27:24,054 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:24,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:24,055 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 99 transitions. [2024-09-12 19:27:24,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 19:27:24,056 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:24,056 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:24,074 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 19:27:24,257 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:24,258 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:24,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:24,259 INFO L85 PathProgramCache]: Analyzing trace with hash 842091152, now seen corresponding path program 1 times [2024-09-12 19:27:24,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:24,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778521182] [2024-09-12 19:27:24,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:24,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:24,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:24,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:24,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:24,435 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:24,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:24,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778521182] [2024-09-12 19:27:24,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778521182] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:24,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:24,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:27:24,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23130633] [2024-09-12 19:27:24,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:24,437 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:27:24,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:24,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:27:24,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:24,442 INFO L87 Difference]: Start difference. First operand 83 states and 99 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:24,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:24,687 INFO L93 Difference]: Finished difference Result 128 states and 162 transitions. [2024-09-12 19:27:24,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:27:24,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2024-09-12 19:27:24,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:24,690 INFO L225 Difference]: With dead ends: 128 [2024-09-12 19:27:24,690 INFO L226 Difference]: Without dead ends: 121 [2024-09-12 19:27:24,690 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:24,691 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 22 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:24,692 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 108 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:24,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-09-12 19:27:24,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 116. [2024-09-12 19:27:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 83 states have (on average 1.5783132530120483) internal successors, (131), 104 states have internal predecessors, (131), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:27:24,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 147 transitions. [2024-09-12 19:27:24,714 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 147 transitions. Word has length 20 [2024-09-12 19:27:24,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:24,715 INFO L474 AbstractCegarLoop]: Abstraction has 116 states and 147 transitions. [2024-09-12 19:27:24,715 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:24,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:24,715 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 147 transitions. [2024-09-12 19:27:24,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 19:27:24,716 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:24,716 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:24,716 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:27:24,717 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:24,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:24,717 INFO L85 PathProgramCache]: Analyzing trace with hash 335021999, now seen corresponding path program 1 times [2024-09-12 19:27:24,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:24,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507750477] [2024-09-12 19:27:24,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:24,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:24,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:24,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:24,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:24,874 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:24,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:24,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507750477] [2024-09-12 19:27:24,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507750477] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:24,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:24,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:27:24,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971302746] [2024-09-12 19:27:24,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:24,877 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:27:24,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:24,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:27:24,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:24,878 INFO L87 Difference]: Start difference. First operand 116 states and 147 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:25,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:25,270 INFO L93 Difference]: Finished difference Result 123 states and 150 transitions. [2024-09-12 19:27:25,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:27:25,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2024-09-12 19:27:25,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:25,272 INFO L225 Difference]: With dead ends: 123 [2024-09-12 19:27:25,272 INFO L226 Difference]: Without dead ends: 120 [2024-09-12 19:27:25,272 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:25,273 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 21 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:25,273 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 112 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:27:25,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-09-12 19:27:25,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 115. [2024-09-12 19:27:25,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 82 states have (on average 1.548780487804878) internal successors, (127), 103 states have internal predecessors, (127), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:27:25,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 143 transitions. [2024-09-12 19:27:25,296 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 143 transitions. Word has length 21 [2024-09-12 19:27:25,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:25,297 INFO L474 AbstractCegarLoop]: Abstraction has 115 states and 143 transitions. [2024-09-12 19:27:25,297 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:25,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:25,297 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 143 transitions. [2024-09-12 19:27:25,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 19:27:25,298 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:25,298 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:25,298 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:27:25,299 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:25,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:25,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1795747442, now seen corresponding path program 1 times [2024-09-12 19:27:25,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:25,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344710383] [2024-09-12 19:27:25,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:25,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:25,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:25,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:25,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:25,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:25,521 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:25,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:25,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344710383] [2024-09-12 19:27:25,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344710383] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:25,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751376774] [2024-09-12 19:27:25,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:25,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:25,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:25,526 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:25,528 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 19:27:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:25,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:27:25,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:25,698 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:25,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:25,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751376774] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:25,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:25,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-09-12 19:27:25,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918832051] [2024-09-12 19:27:25,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:25,701 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:27:25,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:25,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:27:25,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:25,704 INFO L87 Difference]: Start difference. First operand 115 states and 143 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:25,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:25,867 INFO L93 Difference]: Finished difference Result 118 states and 147 transitions. [2024-09-12 19:27:25,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:27:25,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2024-09-12 19:27:25,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:25,869 INFO L225 Difference]: With dead ends: 118 [2024-09-12 19:27:25,870 INFO L226 Difference]: Without dead ends: 117 [2024-09-12 19:27:25,871 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:27:25,872 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 74 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:25,872 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 79 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:25,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-09-12 19:27:25,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-09-12 19:27:25,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 82 states have (on average 1.5365853658536586) internal successors, (126), 103 states have internal predecessors, (126), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:27:25,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 142 transitions. [2024-09-12 19:27:25,903 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 142 transitions. Word has length 22 [2024-09-12 19:27:25,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:25,903 INFO L474 AbstractCegarLoop]: Abstraction has 115 states and 142 transitions. [2024-09-12 19:27:25,903 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:25,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:25,907 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 142 transitions. [2024-09-12 19:27:25,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 19:27:25,908 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:25,908 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:25,926 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 19:27:26,108 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:26,109 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:26,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:26,109 INFO L85 PathProgramCache]: Analyzing trace with hash -166404079, now seen corresponding path program 1 times [2024-09-12 19:27:26,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:26,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192654970] [2024-09-12 19:27:26,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:26,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:26,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [900661422] [2024-09-12 19:27:26,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:26,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:26,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:26,121 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:26,131 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 19:27:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:26,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:27:26,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:26,225 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:26,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:26,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:26,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192654970] [2024-09-12 19:27:26,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:26,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900661422] [2024-09-12 19:27:26,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900661422] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:26,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:26,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:27:26,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450890844] [2024-09-12 19:27:26,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:26,228 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:27:26,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:26,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:27:26,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:26,229 INFO L87 Difference]: Start difference. First operand 115 states and 142 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:26,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:26,380 INFO L93 Difference]: Finished difference Result 116 states and 142 transitions. [2024-09-12 19:27:26,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:27:26,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2024-09-12 19:27:26,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:26,383 INFO L225 Difference]: With dead ends: 116 [2024-09-12 19:27:26,385 INFO L226 Difference]: Without dead ends: 115 [2024-09-12 19:27:26,385 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:27:26,386 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 67 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:26,386 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 84 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:26,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-09-12 19:27:26,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-09-12 19:27:26,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 82 states have (on average 1.524390243902439) internal successors, (125), 103 states have internal predecessors, (125), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:27:26,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 141 transitions. [2024-09-12 19:27:26,428 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 141 transitions. Word has length 23 [2024-09-12 19:27:26,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:26,429 INFO L474 AbstractCegarLoop]: Abstraction has 115 states and 141 transitions. [2024-09-12 19:27:26,429 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:27:26,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:26,429 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 141 transitions. [2024-09-12 19:27:26,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 19:27:26,430 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:26,430 INFO L216 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] [2024-09-12 19:27:26,447 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:26,630 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:27:26,631 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:26,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:26,631 INFO L85 PathProgramCache]: Analyzing trace with hash 567451521, now seen corresponding path program 1 times [2024-09-12 19:27:26,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:26,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027834165] [2024-09-12 19:27:26,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:26,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:26,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307063299] [2024-09-12 19:27:26,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:26,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:26,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:26,644 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:26,645 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 19:27:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:26,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:27:26,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:26,763 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:26,763 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:26,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:26,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027834165] [2024-09-12 19:27:26,764 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:26,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307063299] [2024-09-12 19:27:26,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307063299] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:26,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:26,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:27:26,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916101806] [2024-09-12 19:27:26,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:26,765 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:27:26,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:26,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:27:26,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:27:26,766 INFO L87 Difference]: Start difference. First operand 115 states and 141 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:26,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:26,911 INFO L93 Difference]: Finished difference Result 121 states and 146 transitions. [2024-09-12 19:27:26,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:27:26,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-09-12 19:27:26,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:26,920 INFO L225 Difference]: With dead ends: 121 [2024-09-12 19:27:26,920 INFO L226 Difference]: Without dead ends: 119 [2024-09-12 19:27:26,920 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:27:26,921 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 8 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:26,925 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 159 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:26,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-09-12 19:27:26,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-09-12 19:27:26,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 85 states have (on average 1.5058823529411764) internal successors, (128), 106 states have internal predecessors, (128), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:27:26,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 144 transitions. [2024-09-12 19:27:26,955 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 144 transitions. Word has length 27 [2024-09-12 19:27:26,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:26,956 INFO L474 AbstractCegarLoop]: Abstraction has 119 states and 144 transitions. [2024-09-12 19:27:26,956 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:27:26,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:26,956 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 144 transitions. [2024-09-12 19:27:26,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 19:27:26,957 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:26,957 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:26,975 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 19:27:27,161 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:27,162 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:27,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:27,162 INFO L85 PathProgramCache]: Analyzing trace with hash 2007172809, now seen corresponding path program 1 times [2024-09-12 19:27:27,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:27,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216264616] [2024-09-12 19:27:27,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:27,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:27,234 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:27,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:27,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:27,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:27,288 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:27,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:27,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216264616] [2024-09-12 19:27:27,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216264616] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:27,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991313031] [2024-09-12 19:27:27,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:27,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:27,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:27,293 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:27,295 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 19:27:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:27,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:27:27,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:27,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:27,379 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:27,473 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:27,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991313031] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:27,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:27,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-09-12 19:27:27,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66272581] [2024-09-12 19:27:27,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:27,475 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:27:27,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:27,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:27:27,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:27,476 INFO L87 Difference]: Start difference. First operand 119 states and 144 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:27,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:27,603 INFO L93 Difference]: Finished difference Result 172 states and 212 transitions. [2024-09-12 19:27:27,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:27:27,604 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 35 [2024-09-12 19:27:27,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:27,605 INFO L225 Difference]: With dead ends: 172 [2024-09-12 19:27:27,605 INFO L226 Difference]: Without dead ends: 170 [2024-09-12 19:27:27,606 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:27,606 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 220 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:27,607 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 200 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:27,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-09-12 19:27:27,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 160. [2024-09-12 19:27:27,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 124 states have (on average 1.5080645161290323) internal successors, (187), 145 states have internal predecessors, (187), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:27:27,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 207 transitions. [2024-09-12 19:27:27,639 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 207 transitions. Word has length 35 [2024-09-12 19:27:27,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:27,639 INFO L474 AbstractCegarLoop]: Abstraction has 160 states and 207 transitions. [2024-09-12 19:27:27,640 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:27,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:27,640 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 207 transitions. [2024-09-12 19:27:27,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 19:27:27,641 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:27,641 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:27,660 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 19:27:27,842 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-12 19:27:27,842 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:27,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:27,843 INFO L85 PathProgramCache]: Analyzing trace with hash -428584877, now seen corresponding path program 1 times [2024-09-12 19:27:27,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:27,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086946389] [2024-09-12 19:27:27,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:27,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:27,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:28,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:28,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:28,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:28,052 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:28,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:28,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086946389] [2024-09-12 19:27:28,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086946389] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:28,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63662533] [2024-09-12 19:27:28,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:28,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:28,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:28,055 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:28,057 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 19:27:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:28,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:27:28,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:28,227 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:28,227 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:28,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63662533] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:28,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:28,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-09-12 19:27:28,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857884292] [2024-09-12 19:27:28,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:28,230 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:27:28,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:28,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:27:28,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:28,231 INFO L87 Difference]: Start difference. First operand 160 states and 207 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:27:28,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:28,452 INFO L93 Difference]: Finished difference Result 171 states and 217 transitions. [2024-09-12 19:27:28,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:27:28,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2024-09-12 19:27:28,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:28,454 INFO L225 Difference]: With dead ends: 171 [2024-09-12 19:27:28,455 INFO L226 Difference]: Without dead ends: 160 [2024-09-12 19:27:28,455 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:27:28,455 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 8 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:28,456 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 172 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:28,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-09-12 19:27:28,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-09-12 19:27:28,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 124 states have (on average 1.5) internal successors, (186), 145 states have internal predecessors, (186), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:27:28,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 206 transitions. [2024-09-12 19:27:28,485 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 206 transitions. Word has length 37 [2024-09-12 19:27:28,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:28,485 INFO L474 AbstractCegarLoop]: Abstraction has 160 states and 206 transitions. [2024-09-12 19:27:28,485 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:27:28,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:28,486 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 206 transitions. [2024-09-12 19:27:28,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 19:27:28,490 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:28,491 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:28,507 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:28,691 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:28,691 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:28,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:28,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2092815023, now seen corresponding path program 1 times [2024-09-12 19:27:28,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:28,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681585556] [2024-09-12 19:27:28,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:28,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:28,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:28,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:28,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:28,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:28,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:28,748 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:28,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:28,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681585556] [2024-09-12 19:27:28,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681585556] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:28,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:27:28,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:27:28,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430241447] [2024-09-12 19:27:28,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:28,749 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:27:28,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:28,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:27:28,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:27:28,750 INFO L87 Difference]: Start difference. First operand 160 states and 206 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:28,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:28,799 INFO L93 Difference]: Finished difference Result 160 states and 206 transitions. [2024-09-12 19:27:28,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:27:28,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 36 [2024-09-12 19:27:28,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:28,803 INFO L225 Difference]: With dead ends: 160 [2024-09-12 19:27:28,803 INFO L226 Difference]: Without dead ends: 158 [2024-09-12 19:27:28,803 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:27:28,804 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 58 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:28,804 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 90 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:27:28,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-09-12 19:27:28,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-09-12 19:27:28,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 124 states have (on average 1.4596774193548387) internal successors, (181), 143 states have internal predecessors, (181), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:27:28,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 201 transitions. [2024-09-12 19:27:28,825 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 201 transitions. Word has length 36 [2024-09-12 19:27:28,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:28,826 INFO L474 AbstractCegarLoop]: Abstraction has 158 states and 201 transitions. [2024-09-12 19:27:28,826 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:28,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:28,826 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 201 transitions. [2024-09-12 19:27:28,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 19:27:28,827 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:28,827 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:28,827 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 19:27:28,828 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:28,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:28,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1150544337, now seen corresponding path program 1 times [2024-09-12 19:27:28,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:28,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536872161] [2024-09-12 19:27:28,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:28,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:28,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1088936104] [2024-09-12 19:27:28,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:28,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:28,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:28,846 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:28,847 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 19:27:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:28,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:27:28,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:29,020 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:29,020 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:29,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:29,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536872161] [2024-09-12 19:27:29,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:29,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088936104] [2024-09-12 19:27:29,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088936104] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:29,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:29,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 19:27:29,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837721041] [2024-09-12 19:27:29,155 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:29,155 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:27:29,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:29,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:27:29,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:29,156 INFO L87 Difference]: Start difference. First operand 158 states and 201 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:29,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:29,294 INFO L93 Difference]: Finished difference Result 166 states and 206 transitions. [2024-09-12 19:27:29,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:27:29,295 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2024-09-12 19:27:29,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:29,297 INFO L225 Difference]: With dead ends: 166 [2024-09-12 19:27:29,297 INFO L226 Difference]: Without dead ends: 159 [2024-09-12 19:27:29,298 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:27:29,298 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 78 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:29,299 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 60 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:29,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-09-12 19:27:29,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 154. [2024-09-12 19:27:29,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 125 states have (on average 1.352) internal successors, (169), 139 states have internal predecessors, (169), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:27:29,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 189 transitions. [2024-09-12 19:27:29,325 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 189 transitions. Word has length 38 [2024-09-12 19:27:29,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:29,325 INFO L474 AbstractCegarLoop]: Abstraction has 154 states and 189 transitions. [2024-09-12 19:27:29,326 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:29,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:29,326 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 189 transitions. [2024-09-12 19:27:29,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 19:27:29,328 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:29,329 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 19:27:29,349 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 19:27:29,532 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:29,533 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:29,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:29,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1307136138, now seen corresponding path program 1 times [2024-09-12 19:27:29,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:29,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265424779] [2024-09-12 19:27:29,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:29,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:29,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1894702913] [2024-09-12 19:27:29,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:29,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:29,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:29,544 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:29,546 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 19:27:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:29,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:27:29,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:29,696 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:29,696 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:30,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:30,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265424779] [2024-09-12 19:27:30,106 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:30,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894702913] [2024-09-12 19:27:30,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894702913] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:30,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:30,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 19:27:30,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707848998] [2024-09-12 19:27:30,107 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:30,108 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:27:30,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:30,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:27:30,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:30,109 INFO L87 Difference]: Start difference. First operand 154 states and 189 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:30,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:30,334 INFO L93 Difference]: Finished difference Result 208 states and 256 transitions. [2024-09-12 19:27:30,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:27:30,334 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2024-09-12 19:27:30,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:30,336 INFO L225 Difference]: With dead ends: 208 [2024-09-12 19:27:30,336 INFO L226 Difference]: Without dead ends: 205 [2024-09-12 19:27:30,336 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:30,337 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 90 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:30,337 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 121 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:30,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-09-12 19:27:30,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 191. [2024-09-12 19:27:30,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 160 states have (on average 1.34375) internal successors, (215), 174 states have internal predecessors, (215), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:30,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 239 transitions. [2024-09-12 19:27:30,370 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 239 transitions. Word has length 39 [2024-09-12 19:27:30,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:30,370 INFO L474 AbstractCegarLoop]: Abstraction has 191 states and 239 transitions. [2024-09-12 19:27:30,371 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:30,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:30,371 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 239 transitions. [2024-09-12 19:27:30,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 19:27:30,372 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:30,372 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:30,390 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:30,576 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:30,577 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:30,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:30,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1800702333, now seen corresponding path program 1 times [2024-09-12 19:27:30,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:30,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224324327] [2024-09-12 19:27:30,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:30,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:30,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:30,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:30,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:30,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:30,649 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:30,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:30,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224324327] [2024-09-12 19:27:30,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224324327] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:30,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795002625] [2024-09-12 19:27:30,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:30,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:30,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:30,652 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:30,655 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 19:27:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:30,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:27:30,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:30,784 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:30,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:27:30,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795002625] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:27:30,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:30,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-09-12 19:27:30,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083878741] [2024-09-12 19:27:30,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:27:30,786 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:27:30,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:30,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:27:30,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:27:30,787 INFO L87 Difference]: Start difference. First operand 191 states and 239 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:27:30,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:30,959 INFO L93 Difference]: Finished difference Result 192 states and 240 transitions. [2024-09-12 19:27:30,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:27:30,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-09-12 19:27:30,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:30,961 INFO L225 Difference]: With dead ends: 192 [2024-09-12 19:27:30,961 INFO L226 Difference]: Without dead ends: 190 [2024-09-12 19:27:30,962 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:27:30,962 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 32 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:30,963 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 81 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:30,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-09-12 19:27:30,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 186. [2024-09-12 19:27:30,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 157 states have (on average 1.3312101910828025) internal successors, (209), 169 states have internal predecessors, (209), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:30,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 233 transitions. [2024-09-12 19:27:30,995 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 233 transitions. Word has length 40 [2024-09-12 19:27:30,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:30,995 INFO L474 AbstractCegarLoop]: Abstraction has 186 states and 233 transitions. [2024-09-12 19:27:30,995 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:27:30,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:30,996 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 233 transitions. [2024-09-12 19:27:30,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-09-12 19:27:30,996 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:30,997 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 19:27:31,010 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:31,197 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 19:27:31,197 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:31,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:31,198 INFO L85 PathProgramCache]: Analyzing trace with hash -12802462, now seen corresponding path program 1 times [2024-09-12 19:27:31,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:31,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029146889] [2024-09-12 19:27:31,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:31,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:31,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:31,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:31,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:31,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:31,374 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:31,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:31,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029146889] [2024-09-12 19:27:31,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029146889] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:31,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661252139] [2024-09-12 19:27:31,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:31,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:31,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:31,376 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:31,383 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 19:27:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:31,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:27:31,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:31,499 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:31,500 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:39,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661252139] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:39,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:27:39,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 3] total 11 [2024-09-12 19:27:39,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888984272] [2024-09-12 19:27:39,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:39,674 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:27:39,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:39,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:27:39,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=140, Unknown=2, NotChecked=0, Total=182 [2024-09-12 19:27:39,675 INFO L87 Difference]: Start difference. First operand 186 states and 233 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 19:27:40,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:40,226 INFO L93 Difference]: Finished difference Result 199 states and 239 transitions. [2024-09-12 19:27:40,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:27:40,227 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 41 [2024-09-12 19:27:40,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:40,229 INFO L225 Difference]: With dead ends: 199 [2024-09-12 19:27:40,229 INFO L226 Difference]: Without dead ends: 192 [2024-09-12 19:27:40,230 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=180, Invalid=468, Unknown=2, NotChecked=0, Total=650 [2024-09-12 19:27:40,230 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 103 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:40,231 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 162 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:27:40,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-09-12 19:27:40,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 177. [2024-09-12 19:27:40,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 149 states have (on average 1.2885906040268456) internal successors, (192), 160 states have internal predecessors, (192), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:40,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 216 transitions. [2024-09-12 19:27:40,268 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 216 transitions. Word has length 41 [2024-09-12 19:27:40,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:40,269 INFO L474 AbstractCegarLoop]: Abstraction has 177 states and 216 transitions. [2024-09-12 19:27:40,269 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 19:27:40,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:40,269 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 216 transitions. [2024-09-12 19:27:40,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 19:27:40,270 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:40,270 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:40,287 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 19:27:40,475 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 19:27:40,476 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:40,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:40,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1575725035, now seen corresponding path program 1 times [2024-09-12 19:27:40,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:40,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861743019] [2024-09-12 19:27:40,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:40,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:40,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:40,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:40,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:40,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:40,634 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:40,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:40,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861743019] [2024-09-12 19:27:40,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861743019] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:40,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902373874] [2024-09-12 19:27:40,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:40,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:40,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:40,636 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:40,638 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 19:27:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:40,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:27:40,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:40,793 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:40,793 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:41,046 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:27:41,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902373874] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:41,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:41,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-09-12 19:27:41,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695462264] [2024-09-12 19:27:41,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:41,047 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:27:41,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:41,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:27:41,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:27:41,048 INFO L87 Difference]: Start difference. First operand 177 states and 216 transitions. Second operand has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:41,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:41,492 INFO L93 Difference]: Finished difference Result 178 states and 216 transitions. [2024-09-12 19:27:41,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:27:41,492 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2024-09-12 19:27:41,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:41,494 INFO L225 Difference]: With dead ends: 178 [2024-09-12 19:27:41,494 INFO L226 Difference]: Without dead ends: 175 [2024-09-12 19:27:41,494 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 79 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-09-12 19:27:41,495 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 139 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:41,495 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 191 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:27:41,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-09-12 19:27:41,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 152. [2024-09-12 19:27:41,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 128 states have (on average 1.234375) internal successors, (158), 136 states have internal predecessors, (158), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:27:41,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 180 transitions. [2024-09-12 19:27:41,529 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 180 transitions. Word has length 42 [2024-09-12 19:27:41,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:41,529 INFO L474 AbstractCegarLoop]: Abstraction has 152 states and 180 transitions. [2024-09-12 19:27:41,529 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:27:41,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:41,530 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 180 transitions. [2024-09-12 19:27:41,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 19:27:41,530 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:41,530 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:41,547 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:41,734 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:27:41,735 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:41,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:41,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1602835762, now seen corresponding path program 1 times [2024-09-12 19:27:41,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:41,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905032321] [2024-09-12 19:27:41,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:41,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:41,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [18616310] [2024-09-12 19:27:41,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:41,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:41,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:41,748 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:41,749 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 19:27:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:41,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 19:27:41,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:41,963 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:41,963 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:42,064 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:42,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:42,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905032321] [2024-09-12 19:27:42,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:42,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18616310] [2024-09-12 19:27:42,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18616310] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:42,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:27:42,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-09-12 19:27:42,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678383166] [2024-09-12 19:27:42,065 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:42,066 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:27:42,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:42,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:27:42,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:42,067 INFO L87 Difference]: Start difference. First operand 152 states and 180 transitions. Second operand has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:27:42,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:42,388 INFO L93 Difference]: Finished difference Result 241 states and 288 transitions. [2024-09-12 19:27:42,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:27:42,388 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 43 [2024-09-12 19:27:42,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:42,391 INFO L225 Difference]: With dead ends: 241 [2024-09-12 19:27:42,391 INFO L226 Difference]: Without dead ends: 167 [2024-09-12 19:27:42,391 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:27:42,392 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 78 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:42,392 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 159 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:42,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-09-12 19:27:42,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-09-12 19:27:42,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 143 states have (on average 1.1888111888111887) internal successors, (170), 150 states have internal predecessors, (170), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:42,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 194 transitions. [2024-09-12 19:27:42,431 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 194 transitions. Word has length 43 [2024-09-12 19:27:42,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:42,431 INFO L474 AbstractCegarLoop]: Abstraction has 167 states and 194 transitions. [2024-09-12 19:27:42,431 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:27:42,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:42,432 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 194 transitions. [2024-09-12 19:27:42,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 19:27:42,432 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:42,432 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 19:27:42,449 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:42,633 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:27:42,633 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:42,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:42,634 INFO L85 PathProgramCache]: Analyzing trace with hash -593050690, now seen corresponding path program 1 times [2024-09-12 19:27:42,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:42,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895450152] [2024-09-12 19:27:42,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:42,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:42,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1658481152] [2024-09-12 19:27:42,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:42,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:42,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:42,644 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:42,650 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 19:27:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:42,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 19:27:42,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:42,835 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:42,835 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:42,915 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:27:42,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:42,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895450152] [2024-09-12 19:27:42,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:42,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658481152] [2024-09-12 19:27:42,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658481152] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:42,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:27:42,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2024-09-12 19:27:42,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562534584] [2024-09-12 19:27:42,915 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:42,916 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:27:42,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:42,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:27:42,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:27:42,916 INFO L87 Difference]: Start difference. First operand 167 states and 194 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:27:43,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:43,143 INFO L93 Difference]: Finished difference Result 173 states and 199 transitions. [2024-09-12 19:27:43,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:27:43,144 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 47 [2024-09-12 19:27:43,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:43,145 INFO L225 Difference]: With dead ends: 173 [2024-09-12 19:27:43,145 INFO L226 Difference]: Without dead ends: 169 [2024-09-12 19:27:43,145 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:27:43,146 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 24 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:43,146 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 159 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:43,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-09-12 19:27:43,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2024-09-12 19:27:43,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 145 states have (on average 1.1793103448275861) internal successors, (171), 151 states have internal predecessors, (171), 13 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:43,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 195 transitions. [2024-09-12 19:27:43,187 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 195 transitions. Word has length 47 [2024-09-12 19:27:43,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:43,188 INFO L474 AbstractCegarLoop]: Abstraction has 169 states and 195 transitions. [2024-09-12 19:27:43,188 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 5 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:27:43,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:43,188 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 195 transitions. [2024-09-12 19:27:43,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 19:27:43,189 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:43,189 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:43,206 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:43,390 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 19:27:43,390 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:43,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:43,390 INFO L85 PathProgramCache]: Analyzing trace with hash -873853872, now seen corresponding path program 1 times [2024-09-12 19:27:43,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:43,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515485422] [2024-09-12 19:27:43,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:43,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:43,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:43,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:43,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:43,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:43,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:43,550 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 19:27:43,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:43,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515485422] [2024-09-12 19:27:43,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515485422] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:43,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446986999] [2024-09-12 19:27:43,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:43,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:43,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:43,553 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:43,554 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 19:27:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:43,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:27:43,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:43,786 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-09-12 19:27:43,786 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:43,842 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 19:27:43,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446986999] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:43,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:43,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 7] total 17 [2024-09-12 19:27:43,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026936863] [2024-09-12 19:27:43,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:43,843 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:27:43,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:43,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:27:43,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:27:43,844 INFO L87 Difference]: Start difference. First operand 169 states and 195 transitions. Second operand has 17 states, 17 states have (on average 4.0) internal successors, (68), 13 states have internal predecessors, (68), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 19:27:44,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:44,089 INFO L93 Difference]: Finished difference Result 174 states and 200 transitions. [2024-09-12 19:27:44,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:27:44,090 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 13 states have internal predecessors, (68), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 57 [2024-09-12 19:27:44,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:44,091 INFO L225 Difference]: With dead ends: 174 [2024-09-12 19:27:44,091 INFO L226 Difference]: Without dead ends: 160 [2024-09-12 19:27:44,092 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:27:44,092 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 43 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:44,092 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 214 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:44,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-09-12 19:27:44,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-09-12 19:27:44,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 138 states have (on average 1.1376811594202898) internal successors, (157), 143 states have internal predecessors, (157), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:27:44,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 180 transitions. [2024-09-12 19:27:44,142 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 180 transitions. Word has length 57 [2024-09-12 19:27:44,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:44,142 INFO L474 AbstractCegarLoop]: Abstraction has 160 states and 180 transitions. [2024-09-12 19:27:44,143 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 13 states have internal predecessors, (68), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 19:27:44,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:44,143 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 180 transitions. [2024-09-12 19:27:44,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 19:27:44,144 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:44,144 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-09-12 19:27:44,160 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 19:27:44,344 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 19:27:44,345 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:44,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:44,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1394605753, now seen corresponding path program 2 times [2024-09-12 19:27:44,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:44,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890309592] [2024-09-12 19:27:44,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:44,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:44,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1341313285] [2024-09-12 19:27:44,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:27:44,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:44,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:44,357 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:44,360 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 19:27:44,405 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:27:44,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:44,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:27:44,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:44,508 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:27:44,508 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:44,744 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:27:44,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:44,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890309592] [2024-09-12 19:27:44,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:44,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341313285] [2024-09-12 19:27:44,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341313285] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:44,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:27:44,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 19:27:44,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840498330] [2024-09-12 19:27:44,745 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:44,745 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:27:44,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:44,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:27:44,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:27:44,746 INFO L87 Difference]: Start difference. First operand 160 states and 180 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:45,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:45,810 INFO L93 Difference]: Finished difference Result 319 states and 372 transitions. [2024-09-12 19:27:45,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:27:45,811 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 59 [2024-09-12 19:27:45,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:45,813 INFO L225 Difference]: With dead ends: 319 [2024-09-12 19:27:45,813 INFO L226 Difference]: Without dead ends: 308 [2024-09-12 19:27:45,813 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:27:45,813 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 172 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:45,814 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 224 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 19:27:45,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-09-12 19:27:45,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 302. [2024-09-12 19:27:45,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 273 states have (on average 1.1428571428571428) internal successors, (312), 277 states have internal predecessors, (312), 20 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 19:27:45,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 351 transitions. [2024-09-12 19:27:45,918 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 351 transitions. Word has length 59 [2024-09-12 19:27:45,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:45,919 INFO L474 AbstractCegarLoop]: Abstraction has 302 states and 351 transitions. [2024-09-12 19:27:45,919 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:45,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:45,919 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 351 transitions. [2024-09-12 19:27:45,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 19:27:45,920 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:45,920 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 19:27:45,937 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:46,124 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:46,125 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:46,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:46,125 INFO L85 PathProgramCache]: Analyzing trace with hash -928787541, now seen corresponding path program 1 times [2024-09-12 19:27:46,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:46,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394492248] [2024-09-12 19:27:46,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:46,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:46,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:46,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:46,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:46,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:46,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:46,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:46,195 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:27:46,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:46,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394492248] [2024-09-12 19:27:46,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394492248] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:46,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958361717] [2024-09-12 19:27:46,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:46,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:46,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:46,197 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:46,199 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 19:27:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:46,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:27:46,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:27:46,313 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:46,395 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:27:46,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958361717] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:46,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:46,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-09-12 19:27:46,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896644059] [2024-09-12 19:27:46,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:46,398 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:27:46,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:46,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:27:46,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:46,399 INFO L87 Difference]: Start difference. First operand 302 states and 351 transitions. Second operand has 9 states, 8 states have (on average 13.0) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:27:46,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:46,735 INFO L93 Difference]: Finished difference Result 826 states and 1026 transitions. [2024-09-12 19:27:46,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:27:46,736 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.0) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 71 [2024-09-12 19:27:46,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:46,741 INFO L225 Difference]: With dead ends: 826 [2024-09-12 19:27:46,741 INFO L226 Difference]: Without dead ends: 824 [2024-09-12 19:27:46,742 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:46,742 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 17 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:46,743 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 99 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:46,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2024-09-12 19:27:47,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 824. [2024-09-12 19:27:47,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 762 states have (on average 1.1167979002624673) internal successors, (851), 765 states have internal predecessors, (851), 54 states have call successors, (54), 5 states have call predecessors, (54), 4 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 19:27:47,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 958 transitions. [2024-09-12 19:27:47,027 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 958 transitions. Word has length 71 [2024-09-12 19:27:47,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:47,027 INFO L474 AbstractCegarLoop]: Abstraction has 824 states and 958 transitions. [2024-09-12 19:27:47,028 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.0) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:27:47,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:47,028 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 958 transitions. [2024-09-12 19:27:47,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 19:27:47,029 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:47,029 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:47,046 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-12 19:27:47,230 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:47,230 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:47,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:47,230 INFO L85 PathProgramCache]: Analyzing trace with hash 2109403356, now seen corresponding path program 1 times [2024-09-12 19:27:47,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:47,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629602760] [2024-09-12 19:27:47,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:47,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,354 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 41 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 19:27:47,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:47,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629602760] [2024-09-12 19:27:47,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629602760] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:47,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019701379] [2024-09-12 19:27:47,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:47,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:47,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:47,356 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:47,357 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 19:27:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:47,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:27:47,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:47,479 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 41 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 19:27:47,480 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:47,550 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 15 proven. 38 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 19:27:47,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019701379] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:47,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:47,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-09-12 19:27:47,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985355538] [2024-09-12 19:27:47,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:47,551 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:27:47,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:47,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:27:47,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:27:47,552 INFO L87 Difference]: Start difference. First operand 824 states and 958 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:47,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:47,809 INFO L93 Difference]: Finished difference Result 1008 states and 1168 transitions. [2024-09-12 19:27:47,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:27:47,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 81 [2024-09-12 19:27:47,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:47,813 INFO L225 Difference]: With dead ends: 1008 [2024-09-12 19:27:47,813 INFO L226 Difference]: Without dead ends: 565 [2024-09-12 19:27:47,818 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:27:47,819 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 7 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:47,820 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 108 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:47,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-09-12 19:27:48,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 564. [2024-09-12 19:27:48,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 519 states have (on average 1.1001926782273603) internal successors, (571), 522 states have internal predecessors, (571), 37 states have call successors, (37), 5 states have call predecessors, (37), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 19:27:48,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 644 transitions. [2024-09-12 19:27:48,013 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 644 transitions. Word has length 81 [2024-09-12 19:27:48,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:48,013 INFO L474 AbstractCegarLoop]: Abstraction has 564 states and 644 transitions. [2024-09-12 19:27:48,013 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:48,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:48,014 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 644 transitions. [2024-09-12 19:27:48,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 19:27:48,015 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:48,015 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:48,031 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-09-12 19:27:48,217 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:48,217 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:48,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:48,218 INFO L85 PathProgramCache]: Analyzing trace with hash 18271122, now seen corresponding path program 2 times [2024-09-12 19:27:48,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:48,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434736409] [2024-09-12 19:27:48,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:48,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:48,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:48,330 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:48,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:48,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:48,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:48,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:48,366 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:27:48,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:48,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434736409] [2024-09-12 19:27:48,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434736409] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:48,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392774178] [2024-09-12 19:27:48,367 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:27:48,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:48,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:48,369 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:48,371 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 19:27:48,416 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:27:48,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:48,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:27:48,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:48,491 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:27:48,491 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:27:48,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392774178] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:48,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:48,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2024-09-12 19:27:48,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329365581] [2024-09-12 19:27:48,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:48,695 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 19:27:48,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:48,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 19:27:48,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:27:48,697 INFO L87 Difference]: Start difference. First operand 564 states and 644 transitions. Second operand has 15 states, 14 states have (on average 8.214285714285714) internal successors, (115), 15 states have internal predecessors, (115), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:27:49,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:49,395 INFO L93 Difference]: Finished difference Result 846 states and 958 transitions. [2024-09-12 19:27:49,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 19:27:49,396 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.214285714285714) internal successors, (115), 15 states have internal predecessors, (115), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 81 [2024-09-12 19:27:49,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:49,400 INFO L225 Difference]: With dead ends: 846 [2024-09-12 19:27:49,400 INFO L226 Difference]: Without dead ends: 845 [2024-09-12 19:27:49,401 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=258, Invalid=612, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:27:49,401 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 114 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:49,401 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 167 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:49,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-09-12 19:27:49,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 760. [2024-09-12 19:27:49,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 706 states have (on average 1.0821529745042493) internal successors, (764), 709 states have internal predecessors, (764), 46 states have call successors, (46), 5 states have call predecessors, (46), 4 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-09-12 19:27:49,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 855 transitions. [2024-09-12 19:27:49,653 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 855 transitions. Word has length 81 [2024-09-12 19:27:49,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:49,654 INFO L474 AbstractCegarLoop]: Abstraction has 760 states and 855 transitions. [2024-09-12 19:27:49,654 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.214285714285714) internal successors, (115), 15 states have internal predecessors, (115), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:27:49,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:49,654 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 855 transitions. [2024-09-12 19:27:49,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-09-12 19:27:49,655 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:49,655 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:49,672 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:49,856 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 19:27:49,856 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:49,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:49,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1331165206, now seen corresponding path program 1 times [2024-09-12 19:27:49,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:49,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029983536] [2024-09-12 19:27:49,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:49,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:49,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:49,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:49,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:49,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:49,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:49,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:49,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:49,938 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:27:49,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:49,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029983536] [2024-09-12 19:27:49,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029983536] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:49,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241758445] [2024-09-12 19:27:49,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:49,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:49,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:49,942 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:49,944 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 19:27:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:49,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:27:49,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:50,068 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:27:50,068 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:50,179 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:27:50,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241758445] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:50,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:50,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-09-12 19:27:50,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617525986] [2024-09-12 19:27:50,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:50,180 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:27:50,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:50,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:27:50,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:50,181 INFO L87 Difference]: Start difference. First operand 760 states and 855 transitions. Second operand has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-09-12 19:27:50,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:50,767 INFO L93 Difference]: Finished difference Result 1536 states and 1772 transitions. [2024-09-12 19:27:50,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:27:50,768 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 94 [2024-09-12 19:27:50,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:50,774 INFO L225 Difference]: With dead ends: 1536 [2024-09-12 19:27:50,776 INFO L226 Difference]: Without dead ends: 1535 [2024-09-12 19:27:50,777 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:50,777 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 86 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:50,777 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 192 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:50,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2024-09-12 19:27:51,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1527. [2024-09-12 19:27:51,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1425 states have (on average 1.1024561403508772) internal successors, (1571), 1428 states have internal predecessors, (1571), 94 states have call successors, (94), 5 states have call predecessors, (94), 4 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 19:27:51,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1758 transitions. [2024-09-12 19:27:51,245 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1758 transitions. Word has length 94 [2024-09-12 19:27:51,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:51,246 INFO L474 AbstractCegarLoop]: Abstraction has 1527 states and 1758 transitions. [2024-09-12 19:27:51,246 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-09-12 19:27:51,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:51,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1758 transitions. [2024-09-12 19:27:51,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 19:27:51,247 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:51,247 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:51,264 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-12 19:27:51,448 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 19:27:51,448 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:51,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:51,449 INFO L85 PathProgramCache]: Analyzing trace with hash -598918537, now seen corresponding path program 1 times [2024-09-12 19:27:51,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:51,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961803347] [2024-09-12 19:27:51,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:51,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:51,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:51,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:51,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:51,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:51,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:51,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:51,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:51,541 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 65 proven. 24 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-12 19:27:51,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:51,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961803347] [2024-09-12 19:27:51,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961803347] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:51,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864091497] [2024-09-12 19:27:51,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:51,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:51,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:51,544 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:51,554 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 19:27:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:51,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:27:51,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:51,682 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 77 proven. 24 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-09-12 19:27:51,683 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:51,764 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 65 proven. 24 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-12 19:27:51,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864091497] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:51,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:51,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2024-09-12 19:27:51,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141850533] [2024-09-12 19:27:51,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:51,765 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:27:51,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:51,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:27:51,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:51,766 INFO L87 Difference]: Start difference. First operand 1527 states and 1758 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 8 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-09-12 19:27:52,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:52,226 INFO L93 Difference]: Finished difference Result 1594 states and 1828 transitions. [2024-09-12 19:27:52,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:27:52,227 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 8 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) Word has length 99 [2024-09-12 19:27:52,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:52,233 INFO L225 Difference]: With dead ends: 1594 [2024-09-12 19:27:52,233 INFO L226 Difference]: Without dead ends: 1467 [2024-09-12 19:27:52,234 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 207 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:27:52,236 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 36 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:52,236 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 175 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:52,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2024-09-12 19:27:52,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1465. [2024-09-12 19:27:52,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 1366 states have (on average 1.0937042459736457) internal successors, (1494), 1369 states have internal predecessors, (1494), 91 states have call successors, (91), 5 states have call predecessors, (91), 4 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-09-12 19:27:52,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 1675 transitions. [2024-09-12 19:27:52,709 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 1675 transitions. Word has length 99 [2024-09-12 19:27:52,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:52,710 INFO L474 AbstractCegarLoop]: Abstraction has 1465 states and 1675 transitions. [2024-09-12 19:27:52,710 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 8 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-09-12 19:27:52,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:52,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 1675 transitions. [2024-09-12 19:27:52,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-09-12 19:27:52,712 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:52,712 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:52,728 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:52,916 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 19:27:52,917 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:52,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:52,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1752149216, now seen corresponding path program 2 times [2024-09-12 19:27:52,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:52,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249422260] [2024-09-12 19:27:52,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:52,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:27:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:27:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:27:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:27:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:27:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:27:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:27:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:27:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:27:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 47 proven. 104 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-09-12 19:27:53,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:53,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249422260] [2024-09-12 19:27:53,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249422260] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:53,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437950721] [2024-09-12 19:27:53,090 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:27:53,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:53,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:53,092 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:53,094 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 19:27:53,149 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:27:53,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:53,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:27:53,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:53,314 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-09-12 19:27:53,314 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:53,458 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-09-12 19:27:53,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437950721] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:27:53,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:27:53,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-09-12 19:27:53,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83541722] [2024-09-12 19:27:53,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:53,459 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:27:53,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:53,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:27:53,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:27:53,460 INFO L87 Difference]: Start difference. First operand 1465 states and 1675 transitions. Second operand has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-09-12 19:27:54,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:54,116 INFO L93 Difference]: Finished difference Result 3010 states and 3490 transitions. [2024-09-12 19:27:54,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:27:54,117 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 119 [2024-09-12 19:27:54,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:54,125 INFO L225 Difference]: With dead ends: 3010 [2024-09-12 19:27:54,125 INFO L226 Difference]: Without dead ends: 2198 [2024-09-12 19:27:54,128 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 246 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:27:54,128 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 27 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:54,128 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 259 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:54,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2024-09-12 19:27:54,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 1652. [2024-09-12 19:27:54,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1541 states have (on average 1.0882543802725504) internal successors, (1677), 1544 states have internal predecessors, (1677), 103 states have call successors, (103), 5 states have call predecessors, (103), 4 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-09-12 19:27:54,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 1882 transitions. [2024-09-12 19:27:54,631 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 1882 transitions. Word has length 119 [2024-09-12 19:27:54,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:54,632 INFO L474 AbstractCegarLoop]: Abstraction has 1652 states and 1882 transitions. [2024-09-12 19:27:54,632 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2024-09-12 19:27:54,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:54,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 1882 transitions. [2024-09-12 19:27:54,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 19:27:54,634 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:54,635 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:54,651 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 19:27:54,835 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 19:27:54,835 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:54,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:54,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1411628859, now seen corresponding path program 3 times [2024-09-12 19:27:54,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:54,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053600076] [2024-09-12 19:27:54,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:54,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:54,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796870125] [2024-09-12 19:27:54,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:27:54,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:54,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:54,866 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:54,868 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 19:27:54,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 19:27:54,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:54,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:27:54,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:54,963 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 101 proven. 5 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-09-12 19:27:54,963 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:55,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:55,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053600076] [2024-09-12 19:27:55,421 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:55,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796870125] [2024-09-12 19:27:55,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796870125] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:55,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:55,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 19:27:55,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366726176] [2024-09-12 19:27:55,422 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:55,422 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:27:55,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:55,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:27:55,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:27:55,423 INFO L87 Difference]: Start difference. First operand 1652 states and 1882 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:27:55,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:55,867 INFO L93 Difference]: Finished difference Result 1654 states and 1882 transitions. [2024-09-12 19:27:55,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:27:55,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 139 [2024-09-12 19:27:55,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:55,874 INFO L225 Difference]: With dead ends: 1654 [2024-09-12 19:27:55,874 INFO L226 Difference]: Without dead ends: 1653 [2024-09-12 19:27:55,874 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:27:55,875 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 22 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:55,875 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 84 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:27:55,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2024-09-12 19:27:56,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1652. [2024-09-12 19:27:56,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1541 states have (on average 1.0863075924724206) internal successors, (1674), 1544 states have internal predecessors, (1674), 103 states have call successors, (103), 5 states have call predecessors, (103), 4 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-09-12 19:27:56,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 1879 transitions. [2024-09-12 19:27:56,304 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 1879 transitions. Word has length 139 [2024-09-12 19:27:56,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:56,305 INFO L474 AbstractCegarLoop]: Abstraction has 1652 states and 1879 transitions. [2024-09-12 19:27:56,305 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:27:56,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:56,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 1879 transitions. [2024-09-12 19:27:56,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 19:27:56,307 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:56,307 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:56,325 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:56,507 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 19:27:56,507 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:56,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:56,508 INFO L85 PathProgramCache]: Analyzing trace with hash 471485149, now seen corresponding path program 3 times [2024-09-12 19:27:56,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:56,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850204353] [2024-09-12 19:27:56,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:56,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:56,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789761446] [2024-09-12 19:27:56,523 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:27:56,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:56,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:56,527 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:56,529 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 19:27:56,593 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-09-12 19:27:56,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:56,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:27:56,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:56,788 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:27:56,788 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:57,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:57,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850204353] [2024-09-12 19:27:57,217 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:57,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789761446] [2024-09-12 19:27:57,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789761446] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:57,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:57,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 19:27:57,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97160461] [2024-09-12 19:27:57,218 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:57,219 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:27:57,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:57,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:27:57,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:27:57,220 INFO L87 Difference]: Start difference. First operand 1652 states and 1879 transitions. Second operand has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:57,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:27:57,878 INFO L93 Difference]: Finished difference Result 2516 states and 2883 transitions. [2024-09-12 19:27:57,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 19:27:57,878 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), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 139 [2024-09-12 19:27:57,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:27:57,884 INFO L225 Difference]: With dead ends: 2516 [2024-09-12 19:27:57,884 INFO L226 Difference]: Without dead ends: 1616 [2024-09-12 19:27:57,886 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:27:57,886 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 120 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:27:57,887 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 198 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:27:57,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-09-12 19:27:58,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1532. [2024-09-12 19:27:58,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1427 states have (on average 1.0861948142957254) internal successors, (1550), 1430 states have internal predecessors, (1550), 97 states have call successors, (97), 5 states have call predecessors, (97), 4 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-09-12 19:27:58,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1743 transitions. [2024-09-12 19:27:58,249 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1743 transitions. Word has length 139 [2024-09-12 19:27:58,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:27:58,249 INFO L474 AbstractCegarLoop]: Abstraction has 1532 states and 1743 transitions. [2024-09-12 19:27:58,250 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:27:58,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:58,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1743 transitions. [2024-09-12 19:27:58,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 19:27:58,251 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:27:58,251 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:27:58,265 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-09-12 19:27:58,452 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 19:27:58,452 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:27:58,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:27:58,453 INFO L85 PathProgramCache]: Analyzing trace with hash -363420653, now seen corresponding path program 4 times [2024-09-12 19:27:58,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:27:58,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654663176] [2024-09-12 19:27:58,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:27:58,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:27:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:27:58,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1800893493] [2024-09-12 19:27:58,471 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:27:58,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:27:58,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:27:58,473 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:27:58,475 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 19:27:58,532 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:27:58,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:27:58,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 19:27:58,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:27:59,028 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 9 proven. 232 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-09-12 19:27:59,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:27:59,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:27:59,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654663176] [2024-09-12 19:27:59,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:27:59,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800893493] [2024-09-12 19:27:59,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800893493] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:27:59,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:27:59,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-09-12 19:27:59,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245606471] [2024-09-12 19:27:59,293 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:27:59,294 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:27:59,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:27:59,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:27:59,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:27:59,295 INFO L87 Difference]: Start difference. First operand 1532 states and 1743 transitions. Second operand has 17 states, 16 states have (on average 6.5625) internal successors, (105), 17 states have internal predecessors, (105), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:28:00,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:00,276 INFO L93 Difference]: Finished difference Result 1647 states and 1875 transitions. [2024-09-12 19:28:00,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:28:00,277 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.5625) internal successors, (105), 17 states have internal predecessors, (105), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 139 [2024-09-12 19:28:00,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:00,283 INFO L225 Difference]: With dead ends: 1647 [2024-09-12 19:28:00,283 INFO L226 Difference]: Without dead ends: 1646 [2024-09-12 19:28:00,283 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:28:00,284 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 26 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:00,284 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 447 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:28:00,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2024-09-12 19:28:00,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1539. [2024-09-12 19:28:00,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1434 states have (on average 1.0857740585774058) internal successors, (1557), 1437 states have internal predecessors, (1557), 97 states have call successors, (97), 5 states have call predecessors, (97), 4 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-09-12 19:28:00,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 1750 transitions. [2024-09-12 19:28:00,870 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 1750 transitions. Word has length 139 [2024-09-12 19:28:00,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:00,870 INFO L474 AbstractCegarLoop]: Abstraction has 1539 states and 1750 transitions. [2024-09-12 19:28:00,870 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.5625) internal successors, (105), 17 states have internal predecessors, (105), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:28:00,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:00,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 1750 transitions. [2024-09-12 19:28:00,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-09-12 19:28:00,872 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:00,872 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:00,887 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-12 19:28:01,072 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 19:28:01,073 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:01,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:01,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1404324233, now seen corresponding path program 2 times [2024-09-12 19:28:01,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:01,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081987632] [2024-09-12 19:28:01,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:01,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:01,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:28:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:01,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:28:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:01,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:28:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:01,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:28:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:01,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:28:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:01,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:28:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:01,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:28:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:01,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:28:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:01,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:28:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:01,242 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:28:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:01,244 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:28:01,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:01,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081987632] [2024-09-12 19:28:01,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081987632] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:01,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585694248] [2024-09-12 19:28:01,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:28:01,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:01,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:01,247 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:28:01,248 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 19:28:01,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:28:01,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:01,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:28:01,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:01,426 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:28:01,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:01,642 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:28:01,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585694248] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:28:01,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:28:01,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-09-12 19:28:01,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637956006] [2024-09-12 19:28:01,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:01,643 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:28:01,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:01,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:28:01,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:28:01,644 INFO L87 Difference]: Start difference. First operand 1539 states and 1750 transitions. Second operand has 17 states, 16 states have (on average 14.0) internal successors, (224), 17 states have internal predecessors, (224), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-09-12 19:28:02,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:02,406 INFO L93 Difference]: Finished difference Result 2692 states and 3182 transitions. [2024-09-12 19:28:02,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 19:28:02,406 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 14.0) internal successors, (224), 17 states have internal predecessors, (224), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 151 [2024-09-12 19:28:02,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:02,418 INFO L225 Difference]: With dead ends: 2692 [2024-09-12 19:28:02,419 INFO L226 Difference]: Without dead ends: 2691 [2024-09-12 19:28:02,420 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:28:02,421 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 26 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:02,421 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 163 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:28:02,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2024-09-12 19:28:03,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2691. [2024-09-12 19:28:03,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2691 states, 2514 states have (on average 1.1030230708035005) internal successors, (2773), 2517 states have internal predecessors, (2773), 169 states have call successors, (169), 5 states have call predecessors, (169), 4 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168) [2024-09-12 19:28:03,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2691 states to 2691 states and 3110 transitions. [2024-09-12 19:28:03,385 INFO L78 Accepts]: Start accepts. Automaton has 2691 states and 3110 transitions. Word has length 151 [2024-09-12 19:28:03,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:03,385 INFO L474 AbstractCegarLoop]: Abstraction has 2691 states and 3110 transitions. [2024-09-12 19:28:03,385 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 14.0) internal successors, (224), 17 states have internal predecessors, (224), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-09-12 19:28:03,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:03,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2691 states and 3110 transitions. [2024-09-12 19:28:03,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-09-12 19:28:03,388 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:03,388 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:03,404 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-09-12 19:28:03,592 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 19:28:03,593 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:03,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:03,593 INFO L85 PathProgramCache]: Analyzing trace with hash -536478330, now seen corresponding path program 5 times [2024-09-12 19:28:03,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:03,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046051320] [2024-09-12 19:28:03,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:03,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:03,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:28:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:03,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:28:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:03,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:28:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:03,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:28:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:03,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:28:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:03,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:28:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:03,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:28:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:03,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:28:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:03,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:28:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:03,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:28:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:03,765 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:28:03,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:03,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046051320] [2024-09-12 19:28:03,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046051320] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:03,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798534413] [2024-09-12 19:28:03,766 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:28:03,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:03,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:03,768 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:28:03,770 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 19:28:03,840 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-09-12 19:28:03,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:03,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:28:03,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:04,090 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:28:04,091 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:04,244 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:28:04,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798534413] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:28:04,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:28:04,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2024-09-12 19:28:04,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796114929] [2024-09-12 19:28:04,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:04,245 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:28:04,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:04,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:28:04,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:28:04,246 INFO L87 Difference]: Start difference. First operand 2691 states and 3110 transitions. Second operand has 16 states, 16 states have (on average 12.875) internal successors, (206), 16 states have internal predecessors, (206), 14 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2024-09-12 19:28:05,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:05,579 INFO L93 Difference]: Finished difference Result 6233 states and 7284 transitions. [2024-09-12 19:28:05,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:28:05,580 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.875) internal successors, (206), 16 states have internal predecessors, (206), 14 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) Word has length 159 [2024-09-12 19:28:05,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:05,599 INFO L225 Difference]: With dead ends: 6233 [2024-09-12 19:28:05,599 INFO L226 Difference]: Without dead ends: 4550 [2024-09-12 19:28:05,605 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 326 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:28:05,605 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 13 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:05,605 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 290 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:28:05,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2024-09-12 19:28:06,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 3220. [2024-09-12 19:28:06,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3220 states, 3010 states have (on average 1.1) internal successors, (3311), 3013 states have internal predecessors, (3311), 202 states have call successors, (202), 5 states have call predecessors, (202), 4 states have return successors, (201), 201 states have call predecessors, (201), 201 states have call successors, (201) [2024-09-12 19:28:06,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 3714 transitions. [2024-09-12 19:28:06,679 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 3714 transitions. Word has length 159 [2024-09-12 19:28:06,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:06,680 INFO L474 AbstractCegarLoop]: Abstraction has 3220 states and 3714 transitions. [2024-09-12 19:28:06,680 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.875) internal successors, (206), 16 states have internal predecessors, (206), 14 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2024-09-12 19:28:06,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:06,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 3714 transitions. [2024-09-12 19:28:06,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-09-12 19:28:06,683 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:06,683 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:06,699 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-09-12 19:28:06,883 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:06,884 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:06,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:06,884 INFO L85 PathProgramCache]: Analyzing trace with hash -278706554, now seen corresponding path program 6 times [2024-09-12 19:28:06,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:06,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153939446] [2024-09-12 19:28:06,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:06,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:07,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:28:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:07,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:28:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:07,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:28:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:07,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:28:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:07,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:28:07,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:07,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:28:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:07,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:28:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:07,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:28:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:07,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:28:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:07,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:28:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:07,058 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 83 proven. 234 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:28:07,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:07,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153939446] [2024-09-12 19:28:07,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153939446] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:07,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70818859] [2024-09-12 19:28:07,059 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 19:28:07,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:07,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:07,061 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:28:07,062 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 19:28:07,133 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-09-12 19:28:07,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:07,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:28:07,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:07,322 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:28:07,322 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:07,472 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-09-12 19:28:07,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70818859] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:28:07,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:28:07,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 15 [2024-09-12 19:28:07,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353451420] [2024-09-12 19:28:07,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:07,473 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 19:28:07,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:07,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 19:28:07,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:28:07,474 INFO L87 Difference]: Start difference. First operand 3220 states and 3714 transitions. Second operand has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 13 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2024-09-12 19:28:08,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:08,561 INFO L93 Difference]: Finished difference Result 3752 states and 4313 transitions. [2024-09-12 19:28:08,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:28:08,561 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 13 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) Word has length 159 [2024-09-12 19:28:08,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:08,573 INFO L225 Difference]: With dead ends: 3752 [2024-09-12 19:28:08,573 INFO L226 Difference]: Without dead ends: 3215 [2024-09-12 19:28:08,575 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 327 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:28:08,575 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 32 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:08,575 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 352 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:28:08,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2024-09-12 19:28:09,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 3213. [2024-09-12 19:28:09,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3213 states, 3003 states have (on average 1.0972360972360973) internal successors, (3295), 3006 states have internal predecessors, (3295), 202 states have call successors, (202), 5 states have call predecessors, (202), 4 states have return successors, (201), 201 states have call predecessors, (201), 201 states have call successors, (201) [2024-09-12 19:28:09,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3213 states to 3213 states and 3698 transitions. [2024-09-12 19:28:09,683 INFO L78 Accepts]: Start accepts. Automaton has 3213 states and 3698 transitions. Word has length 159 [2024-09-12 19:28:09,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:09,684 INFO L474 AbstractCegarLoop]: Abstraction has 3213 states and 3698 transitions. [2024-09-12 19:28:09,684 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 13 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2024-09-12 19:28:09,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:09,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3213 states and 3698 transitions. [2024-09-12 19:28:09,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-09-12 19:28:09,686 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:09,686 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:09,702 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-09-12 19:28:09,886 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:09,886 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:09,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:09,887 INFO L85 PathProgramCache]: Analyzing trace with hash 54019570, now seen corresponding path program 3 times [2024-09-12 19:28:09,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:09,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481024438] [2024-09-12 19:28:09,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:09,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:10,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:28:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:10,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:28:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:10,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:28:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:10,090 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:28:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:10,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:28:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:10,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:28:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:10,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:28:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:10,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:28:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:10,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:28:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:10,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:28:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:10,128 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 18 proven. 323 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-09-12 19:28:10,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:10,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481024438] [2024-09-12 19:28:10,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481024438] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:10,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335016837] [2024-09-12 19:28:10,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:28:10,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:10,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:10,131 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:28:10,132 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 19:28:10,183 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-09-12 19:28:10,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:10,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-12 19:28:10,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:10,671 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 225 proven. 70 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-09-12 19:28:10,672 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:11,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335016837] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:11,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:28:11,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16] total 25 [2024-09-12 19:28:11,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214290805] [2024-09-12 19:28:11,236 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:11,237 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 19:28:11,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:11,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 19:28:11,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:28:11,238 INFO L87 Difference]: Start difference. First operand 3213 states and 3698 transitions. Second operand has 26 states, 25 states have (on average 8.04) internal successors, (201), 26 states have internal predecessors, (201), 11 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 12 states have call predecessors, (15), 11 states have call successors, (15) [2024-09-12 19:28:14,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:14,631 INFO L93 Difference]: Finished difference Result 3784 states and 4340 transitions. [2024-09-12 19:28:14,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-09-12 19:28:14,631 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 8.04) internal successors, (201), 26 states have internal predecessors, (201), 11 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 12 states have call predecessors, (15), 11 states have call successors, (15) Word has length 161 [2024-09-12 19:28:14,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:14,643 INFO L225 Difference]: With dead ends: 3784 [2024-09-12 19:28:14,643 INFO L226 Difference]: Without dead ends: 3327 [2024-09-12 19:28:14,647 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2536 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1300, Invalid=7442, Unknown=0, NotChecked=0, Total=8742 [2024-09-12 19:28:14,647 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 514 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:14,647 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 281 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 19:28:14,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3327 states. [2024-09-12 19:28:15,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3327 to 3286. [2024-09-12 19:28:15,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 3072 states have (on average 1.0908203125) internal successors, (3351), 3075 states have internal predecessors, (3351), 206 states have call successors, (206), 5 states have call predecessors, (206), 4 states have return successors, (205), 205 states have call predecessors, (205), 205 states have call successors, (205) [2024-09-12 19:28:15,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 3762 transitions. [2024-09-12 19:28:15,589 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 3762 transitions. Word has length 161 [2024-09-12 19:28:15,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:15,589 INFO L474 AbstractCegarLoop]: Abstraction has 3286 states and 3762 transitions. [2024-09-12 19:28:15,589 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 8.04) internal successors, (201), 26 states have internal predecessors, (201), 11 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 12 states have call predecessors, (15), 11 states have call successors, (15) [2024-09-12 19:28:15,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:15,590 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 3762 transitions. [2024-09-12 19:28:15,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-09-12 19:28:15,592 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:15,592 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:15,608 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-09-12 19:28:15,796 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:15,797 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:15,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:15,797 INFO L85 PathProgramCache]: Analyzing trace with hash 74294285, now seen corresponding path program 7 times [2024-09-12 19:28:15,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:15,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294290076] [2024-09-12 19:28:15,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:15,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:28:15,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [208948070] [2024-09-12 19:28:15,816 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 19:28:15,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:15,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:15,818 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:28:15,819 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 19:28:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:15,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 19:28:15,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:17,133 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 21 proven. 411 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-12 19:28:17,133 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:17,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:17,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294290076] [2024-09-12 19:28:17,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:28:17,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208948070] [2024-09-12 19:28:17,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208948070] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:17,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:28:17,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2024-09-12 19:28:17,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704796744] [2024-09-12 19:28:17,615 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:17,615 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-12 19:28:17,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:17,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-12 19:28:17,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=933, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 19:28:17,616 INFO L87 Difference]: Start difference. First operand 3286 states and 3762 transitions. Second operand has 29 states, 27 states have (on average 5.111111111111111) internal successors, (138), 27 states have internal predecessors, (138), 11 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:28:19,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:19,983 INFO L93 Difference]: Finished difference Result 3287 states and 3762 transitions. [2024-09-12 19:28:19,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-12 19:28:19,984 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 5.111111111111111) internal successors, (138), 27 states have internal predecessors, (138), 11 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) Word has length 179 [2024-09-12 19:28:19,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:19,993 INFO L225 Difference]: With dead ends: 3287 [2024-09-12 19:28:19,993 INFO L226 Difference]: Without dead ends: 3286 [2024-09-12 19:28:19,994 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 876 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=610, Invalid=2582, Unknown=0, NotChecked=0, Total=3192 [2024-09-12 19:28:19,995 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 130 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:19,995 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 343 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:28:19,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states. [2024-09-12 19:28:20,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 3286. [2024-09-12 19:28:20,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 3072 states have (on average 1.0904947916666667) internal successors, (3350), 3075 states have internal predecessors, (3350), 206 states have call successors, (206), 5 states have call predecessors, (206), 4 states have return successors, (205), 205 states have call predecessors, (205), 205 states have call successors, (205) [2024-09-12 19:28:20,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 3761 transitions. [2024-09-12 19:28:20,995 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 3761 transitions. Word has length 179 [2024-09-12 19:28:20,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:20,995 INFO L474 AbstractCegarLoop]: Abstraction has 3286 states and 3761 transitions. [2024-09-12 19:28:20,995 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 5.111111111111111) internal successors, (138), 27 states have internal predecessors, (138), 11 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:28:20,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:20,996 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 3761 transitions. [2024-09-12 19:28:20,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-09-12 19:28:20,998 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:20,998 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:21,015 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-09-12 19:28:21,202 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 19:28:21,203 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:21,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:21,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1529079929, now seen corresponding path program 8 times [2024-09-12 19:28:21,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:21,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385034295] [2024-09-12 19:28:21,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:21,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:28:21,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1727371986] [2024-09-12 19:28:21,231 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:28:21,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:21,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:21,234 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:28:21,235 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-12 19:28:21,294 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:28:21,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:21,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:28:21,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:21,644 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-09-12 19:28:21,644 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:22,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:22,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385034295] [2024-09-12 19:28:22,349 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:28:22,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727371986] [2024-09-12 19:28:22,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727371986] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:22,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:28:22,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 19:28:22,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771680682] [2024-09-12 19:28:22,349 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:22,350 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:28:22,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:22,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:28:22,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:28:22,354 INFO L87 Difference]: Start difference. First operand 3286 states and 3761 transitions. Second operand has 9 states, 8 states have (on average 11.5) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 19:28:23,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:23,749 INFO L93 Difference]: Finished difference Result 4069 states and 4665 transitions. [2024-09-12 19:28:23,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:28:23,750 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 179 [2024-09-12 19:28:23,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:23,759 INFO L225 Difference]: With dead ends: 4069 [2024-09-12 19:28:23,759 INFO L226 Difference]: Without dead ends: 4068 [2024-09-12 19:28:23,759 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:28:23,760 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 19 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:23,760 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 226 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:28:23,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4068 states. [2024-09-12 19:28:24,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4068 to 3475. [2024-09-12 19:28:24,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3475 states, 3249 states have (on average 1.092643890427824) internal successors, (3550), 3252 states have internal predecessors, (3550), 218 states have call successors, (218), 5 states have call predecessors, (218), 4 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2024-09-12 19:28:24,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3475 states to 3475 states and 3985 transitions. [2024-09-12 19:28:24,760 INFO L78 Accepts]: Start accepts. Automaton has 3475 states and 3985 transitions. Word has length 179 [2024-09-12 19:28:24,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:24,761 INFO L474 AbstractCegarLoop]: Abstraction has 3475 states and 3985 transitions. [2024-09-12 19:28:24,761 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 19:28:24,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:24,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3475 states and 3985 transitions. [2024-09-12 19:28:24,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-09-12 19:28:24,763 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:24,763 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:24,779 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-09-12 19:28:24,965 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 19:28:24,965 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:24,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:24,966 INFO L85 PathProgramCache]: Analyzing trace with hash -2071684389, now seen corresponding path program 4 times [2024-09-12 19:28:24,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:24,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302598374] [2024-09-12 19:28:24,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:24,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:25,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:28:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:25,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:28:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:25,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:28:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:25,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:28:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:25,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:28:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:25,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:28:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:25,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:28:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:25,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:28:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:25,203 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:28:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:25,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:28:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:25,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:28:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:25,232 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 18 proven. 443 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-09-12 19:28:25,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:25,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302598374] [2024-09-12 19:28:25,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302598374] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:25,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032652153] [2024-09-12 19:28:25,232 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:28:25,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:25,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:25,234 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:28:25,236 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-09-12 19:28:25,299 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:28:25,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:25,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 19:28:25,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:25,570 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 21 proven. 455 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-09-12 19:28:25,571 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:37,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032652153] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:37,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:28:37,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 18 [2024-09-12 19:28:37,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911480040] [2024-09-12 19:28:37,826 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:37,826 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 19:28:37,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:37,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 19:28:37,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=623, Unknown=3, NotChecked=0, Total=812 [2024-09-12 19:28:37,828 INFO L87 Difference]: Start difference. First operand 3475 states and 3985 transitions. Second operand has 19 states, 18 states have (on average 10.5) internal successors, (189), 19 states have internal predecessors, (189), 13 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) [2024-09-12 19:28:39,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:39,338 INFO L93 Difference]: Finished difference Result 3557 states and 4076 transitions. [2024-09-12 19:28:39,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-12 19:28:39,339 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 10.5) internal successors, (189), 19 states have internal predecessors, (189), 13 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) Word has length 181 [2024-09-12 19:28:39,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:39,347 INFO L225 Difference]: With dead ends: 3557 [2024-09-12 19:28:39,347 INFO L226 Difference]: Without dead ends: 3556 [2024-09-12 19:28:39,348 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=671, Invalid=1582, Unknown=3, NotChecked=0, Total=2256 [2024-09-12 19:28:39,349 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 92 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:39,349 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 204 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:28:39,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3556 states. [2024-09-12 19:28:40,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3556 to 3523. [2024-09-12 19:28:40,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3523 states, 3294 states have (on average 1.0907710989678203) internal successors, (3593), 3297 states have internal predecessors, (3593), 221 states have call successors, (221), 5 states have call predecessors, (221), 4 states have return successors, (220), 220 states have call predecessors, (220), 220 states have call successors, (220) [2024-09-12 19:28:40,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3523 states to 3523 states and 4034 transitions. [2024-09-12 19:28:40,372 INFO L78 Accepts]: Start accepts. Automaton has 3523 states and 4034 transitions. Word has length 181 [2024-09-12 19:28:40,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:40,372 INFO L474 AbstractCegarLoop]: Abstraction has 3523 states and 4034 transitions. [2024-09-12 19:28:40,372 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 10.5) internal successors, (189), 19 states have internal predecessors, (189), 13 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) [2024-09-12 19:28:40,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:40,373 INFO L276 IsEmpty]: Start isEmpty. Operand 3523 states and 4034 transitions. [2024-09-12 19:28:40,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-09-12 19:28:40,374 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:40,374 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:40,390 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-09-12 19:28:40,575 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 19:28:40,575 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:40,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:40,576 INFO L85 PathProgramCache]: Analyzing trace with hash 2002360721, now seen corresponding path program 5 times [2024-09-12 19:28:40,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:40,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120432678] [2024-09-12 19:28:40,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:40,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:28:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:28:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:28:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:28:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:28:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:28:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:28:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:28:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:28:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:28:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:28:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:40,840 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 21 proven. 460 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-09-12 19:28:40,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:40,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120432678] [2024-09-12 19:28:40,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120432678] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:40,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143568497] [2024-09-12 19:28:40,841 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:28:40,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:40,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:40,843 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:28:40,844 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-09-12 19:28:40,913 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-09-12 19:28:40,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:40,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:28:40,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:41,093 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 21 proven. 460 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-09-12 19:28:41,093 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:41,418 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 21 proven. 460 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-09-12 19:28:41,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143568497] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:28:41,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:28:41,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2024-09-12 19:28:41,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763857997] [2024-09-12 19:28:41,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:41,420 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-12 19:28:41,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:41,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-12 19:28:41,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2024-09-12 19:28:41,421 INFO L87 Difference]: Start difference. First operand 3523 states and 4034 transitions. Second operand has 25 states, 24 states have (on average 11.041666666666666) internal successors, (265), 25 states have internal predecessors, (265), 17 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2024-09-12 19:28:44,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:44,275 INFO L93 Difference]: Finished difference Result 6032 states and 6868 transitions. [2024-09-12 19:28:44,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-09-12 19:28:44,276 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 11.041666666666666) internal successors, (265), 25 states have internal predecessors, (265), 17 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) Word has length 181 [2024-09-12 19:28:44,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:44,289 INFO L225 Difference]: With dead ends: 6032 [2024-09-12 19:28:44,289 INFO L226 Difference]: Without dead ends: 6031 [2024-09-12 19:28:44,291 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1328, Invalid=2832, Unknown=0, NotChecked=0, Total=4160 [2024-09-12 19:28:44,292 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 254 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:44,292 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 234 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:28:44,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2024-09-12 19:28:46,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 5837. [2024-09-12 19:28:46,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5837 states, 5480 states have (on average 1.0642335766423359) internal successors, (5832), 5483 states have internal predecessors, (5832), 349 states have call successors, (349), 5 states have call predecessors, (349), 4 states have return successors, (348), 348 states have call predecessors, (348), 348 states have call successors, (348) [2024-09-12 19:28:46,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5837 states to 5837 states and 6529 transitions. [2024-09-12 19:28:46,247 INFO L78 Accepts]: Start accepts. Automaton has 5837 states and 6529 transitions. Word has length 181 [2024-09-12 19:28:46,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:46,247 INFO L474 AbstractCegarLoop]: Abstraction has 5837 states and 6529 transitions. [2024-09-12 19:28:46,248 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 11.041666666666666) internal successors, (265), 25 states have internal predecessors, (265), 17 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19) [2024-09-12 19:28:46,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:46,248 INFO L276 IsEmpty]: Start isEmpty. Operand 5837 states and 6529 transitions. [2024-09-12 19:28:46,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-09-12 19:28:46,250 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:46,250 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:46,265 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-09-12 19:28:46,454 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 19:28:46,454 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:46,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:46,455 INFO L85 PathProgramCache]: Analyzing trace with hash 2114524741, now seen corresponding path program 2 times [2024-09-12 19:28:46,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:46,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861345506] [2024-09-12 19:28:46,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:46,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:46,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:28:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:46,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:28:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:46,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:28:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:46,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:28:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:46,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:28:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:46,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:28:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:46,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:28:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:46,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:28:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:46,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:28:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:46,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:28:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:46,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:28:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:46,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:28:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:28:46,672 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:28:46,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:46,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861345506] [2024-09-12 19:28:46,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861345506] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:46,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465529305] [2024-09-12 19:28:46,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:28:46,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:46,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:46,675 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:28:46,676 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-09-12 19:28:46,745 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:28:46,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:46,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:28:46,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:46,903 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:28:46,903 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:47,141 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:28:47,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465529305] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:28:47,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:28:47,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-09-12 19:28:47,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060880658] [2024-09-12 19:28:47,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:47,142 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 19:28:47,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:47,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 19:28:47,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:28:47,143 INFO L87 Difference]: Start difference. First operand 5837 states and 6529 transitions. Second operand has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) [2024-09-12 19:28:51,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:28:51,819 INFO L93 Difference]: Finished difference Result 12065 states and 13685 transitions. [2024-09-12 19:28:51,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 19:28:51,820 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) Word has length 194 [2024-09-12 19:28:51,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:28:51,845 INFO L225 Difference]: With dead ends: 12065 [2024-09-12 19:28:51,846 INFO L226 Difference]: Without dead ends: 12064 [2024-09-12 19:28:51,849 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:28:51,849 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 326 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:28:51,850 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 307 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:28:51,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12064 states. [2024-09-12 19:28:54,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12064 to 9187. [2024-09-12 19:28:54,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9187 states, 8620 states have (on average 1.0779582366589326) internal successors, (9292), 8623 states have internal predecessors, (9292), 559 states have call successors, (559), 5 states have call predecessors, (559), 4 states have return successors, (558), 558 states have call predecessors, (558), 558 states have call successors, (558) [2024-09-12 19:28:55,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9187 states to 9187 states and 10409 transitions. [2024-09-12 19:28:55,023 INFO L78 Accepts]: Start accepts. Automaton has 9187 states and 10409 transitions. Word has length 194 [2024-09-12 19:28:55,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:28:55,024 INFO L474 AbstractCegarLoop]: Abstraction has 9187 states and 10409 transitions. [2024-09-12 19:28:55,024 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) [2024-09-12 19:28:55,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:55,024 INFO L276 IsEmpty]: Start isEmpty. Operand 9187 states and 10409 transitions. [2024-09-12 19:28:55,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-09-12 19:28:55,027 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:28:55,027 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:28:55,043 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-09-12 19:28:55,231 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 19:28:55,232 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:28:55,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:28:55,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1658843318, now seen corresponding path program 9 times [2024-09-12 19:28:55,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:28:55,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481438407] [2024-09-12 19:28:55,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:28:55,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:28:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:28:55,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1634860124] [2024-09-12 19:28:55,249 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:28:55,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:28:55,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:28:55,251 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:28:55,253 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-09-12 19:28:55,313 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-09-12 19:28:55,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:28:55,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 19:28:55,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:28:55,988 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 318 proven. 71 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-09-12 19:28:55,988 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:28:56,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:28:56,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481438407] [2024-09-12 19:28:56,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:28:56,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634860124] [2024-09-12 19:28:56,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634860124] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:28:56,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:28:56,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 19:28:56,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42440896] [2024-09-12 19:28:56,676 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:28:56,676 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:28:56,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:28:56,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:28:56,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:28:56,677 INFO L87 Difference]: Start difference. First operand 9187 states and 10409 transitions. Second operand has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 16 states have internal predecessors, (88), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 19:29:00,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:00,825 INFO L93 Difference]: Finished difference Result 9195 states and 10412 transitions. [2024-09-12 19:29:00,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 19:29:00,826 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 16 states have internal predecessors, (88), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 199 [2024-09-12 19:29:00,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:00,850 INFO L225 Difference]: With dead ends: 9195 [2024-09-12 19:29:00,850 INFO L226 Difference]: Without dead ends: 8608 [2024-09-12 19:29:00,855 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=175, Invalid=1015, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 19:29:00,856 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 59 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:00,856 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 309 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 19:29:00,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8608 states. [2024-09-12 19:29:03,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8608 to 7975. [2024-09-12 19:29:03,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7975 states, 7482 states have (on average 1.0799251537022188) internal successors, (8080), 7485 states have internal predecessors, (8080), 485 states have call successors, (485), 5 states have call predecessors, (485), 4 states have return successors, (484), 484 states have call predecessors, (484), 484 states have call successors, (484) [2024-09-12 19:29:03,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7975 states to 7975 states and 9049 transitions. [2024-09-12 19:29:03,445 INFO L78 Accepts]: Start accepts. Automaton has 7975 states and 9049 transitions. Word has length 199 [2024-09-12 19:29:03,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:03,445 INFO L474 AbstractCegarLoop]: Abstraction has 7975 states and 9049 transitions. [2024-09-12 19:29:03,445 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.866666666666666) internal successors, (88), 16 states have internal predecessors, (88), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 19:29:03,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:03,445 INFO L276 IsEmpty]: Start isEmpty. Operand 7975 states and 9049 transitions. [2024-09-12 19:29:03,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-09-12 19:29:03,447 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:03,447 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:03,466 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-09-12 19:29:03,648 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 19:29:03,648 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:03,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:03,648 INFO L85 PathProgramCache]: Analyzing trace with hash -346432532, now seen corresponding path program 10 times [2024-09-12 19:29:03,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:03,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238817667] [2024-09-12 19:29:03,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:03,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:03,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:29:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:03,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:29:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:03,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:29:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:03,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:29:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:03,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:29:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:03,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:29:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:03,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:29:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:03,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:29:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:03,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:29:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:03,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:29:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:03,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:29:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:03,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:29:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:03,866 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 135 proven. 412 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:29:03,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:03,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238817667] [2024-09-12 19:29:03,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238817667] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:03,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538919426] [2024-09-12 19:29:03,866 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:29:03,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:03,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:03,868 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:29:03,871 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-09-12 19:29:03,937 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:29:03,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:29:03,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:29:03,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:04,189 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:29:04,190 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:04,398 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 19:29:04,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538919426] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:29:04,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:29:04,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2024-09-12 19:29:04,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151184754] [2024-09-12 19:29:04,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:04,399 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 19:29:04,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:04,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 19:29:04,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:29:04,400 INFO L87 Difference]: Start difference. First operand 7975 states and 9049 transitions. Second operand has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-09-12 19:29:08,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:08,636 INFO L93 Difference]: Finished difference Result 16532 states and 19050 transitions. [2024-09-12 19:29:08,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:29:08,637 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 199 [2024-09-12 19:29:08,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:08,669 INFO L225 Difference]: With dead ends: 16532 [2024-09-12 19:29:08,669 INFO L226 Difference]: Without dead ends: 11825 [2024-09-12 19:29:08,684 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 408 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2024-09-12 19:29:08,685 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 32 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:08,685 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 394 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:29:08,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11825 states. [2024-09-12 19:29:11,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11825 to 8930. [2024-09-12 19:29:11,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8930 states, 8377 states have (on average 1.0767577891846722) internal successors, (9020), 8380 states have internal predecessors, (9020), 545 states have call successors, (545), 5 states have call predecessors, (545), 4 states have return successors, (544), 544 states have call predecessors, (544), 544 states have call successors, (544) [2024-09-12 19:29:12,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8930 states to 8930 states and 10109 transitions. [2024-09-12 19:29:12,016 INFO L78 Accepts]: Start accepts. Automaton has 8930 states and 10109 transitions. Word has length 199 [2024-09-12 19:29:12,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:12,017 INFO L474 AbstractCegarLoop]: Abstraction has 8930 states and 10109 transitions. [2024-09-12 19:29:12,017 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 16 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-09-12 19:29:12,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:12,017 INFO L276 IsEmpty]: Start isEmpty. Operand 8930 states and 10109 transitions. [2024-09-12 19:29:12,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-09-12 19:29:12,019 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:12,019 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:12,030 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-09-12 19:29:12,219 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 19:29:12,220 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:12,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:12,220 INFO L85 PathProgramCache]: Analyzing trace with hash -356774595, now seen corresponding path program 11 times [2024-09-12 19:29:12,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:12,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178277501] [2024-09-12 19:29:12,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:12,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:29:12,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1569386784] [2024-09-12 19:29:12,240 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:29:12,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:12,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:12,242 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:29:12,244 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-09-12 19:29:12,327 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-09-12 19:29:12,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:29:12,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-09-12 19:29:12,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:13,802 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 24 proven. 656 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-09-12 19:29:13,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:14,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:14,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178277501] [2024-09-12 19:29:14,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:29:14,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569386784] [2024-09-12 19:29:14,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569386784] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:14,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:29:14,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2024-09-12 19:29:14,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194821131] [2024-09-12 19:29:14,080 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:14,080 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-12 19:29:14,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:14,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-12 19:29:14,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1284, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 19:29:14,082 INFO L87 Difference]: Start difference. First operand 8930 states and 10109 transitions. Second operand has 35 states, 33 states have (on average 5.090909090909091) internal successors, (168), 33 states have internal predecessors, (168), 13 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 19:29:19,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:19,985 INFO L93 Difference]: Finished difference Result 9168 states and 10379 transitions. [2024-09-12 19:29:19,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-09-12 19:29:19,985 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 33 states have (on average 5.090909090909091) internal successors, (168), 33 states have internal predecessors, (168), 13 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) Word has length 219 [2024-09-12 19:29:19,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:20,006 INFO L225 Difference]: With dead ends: 9168 [2024-09-12 19:29:20,006 INFO L226 Difference]: Without dead ends: 9167 [2024-09-12 19:29:20,012 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3999 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1843, Invalid=10147, Unknown=0, NotChecked=0, Total=11990 [2024-09-12 19:29:20,013 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 269 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:20,013 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 352 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:29:20,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9167 states. [2024-09-12 19:29:22,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9167 to 8930. [2024-09-12 19:29:23,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8930 states, 8377 states have (on average 1.0766384147069357) internal successors, (9019), 8380 states have internal predecessors, (9019), 545 states have call successors, (545), 5 states have call predecessors, (545), 4 states have return successors, (544), 544 states have call predecessors, (544), 544 states have call successors, (544) [2024-09-12 19:29:23,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8930 states to 8930 states and 10108 transitions. [2024-09-12 19:29:23,019 INFO L78 Accepts]: Start accepts. Automaton has 8930 states and 10108 transitions. Word has length 219 [2024-09-12 19:29:23,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:23,020 INFO L474 AbstractCegarLoop]: Abstraction has 8930 states and 10108 transitions. [2024-09-12 19:29:23,020 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 33 states have (on average 5.090909090909091) internal successors, (168), 33 states have internal predecessors, (168), 13 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 19:29:23,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:23,020 INFO L276 IsEmpty]: Start isEmpty. Operand 8930 states and 10108 transitions. [2024-09-12 19:29:23,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-09-12 19:29:23,022 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:23,022 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:23,034 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-09-12 19:29:23,222 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 19:29:23,223 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:23,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:23,223 INFO L85 PathProgramCache]: Analyzing trace with hash -873476385, now seen corresponding path program 12 times [2024-09-12 19:29:23,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:23,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829711608] [2024-09-12 19:29:23,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:23,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:29:23,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [489381] [2024-09-12 19:29:23,246 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 19:29:23,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:23,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:23,247 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:29:23,249 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-09-12 19:29:23,338 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-09-12 19:29:23,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:29:23,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 19:29:23,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:23,972 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 542 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-09-12 19:29:23,972 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:24,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:24,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829711608] [2024-09-12 19:29:24,305 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:29:24,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489381] [2024-09-12 19:29:24,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489381] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:24,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:29:24,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 19:29:24,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132626264] [2024-09-12 19:29:24,306 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:24,306 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:29:24,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:24,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:29:24,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:29:24,307 INFO L87 Difference]: Start difference. First operand 8930 states and 10108 transitions. Second operand has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:29:27,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:27,844 INFO L93 Difference]: Finished difference Result 9613 states and 10869 transitions. [2024-09-12 19:29:27,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:29:27,845 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 219 [2024-09-12 19:29:27,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:27,872 INFO L225 Difference]: With dead ends: 9613 [2024-09-12 19:29:27,872 INFO L226 Difference]: Without dead ends: 9612 [2024-09-12 19:29:27,876 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:29:27,876 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 19 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:27,876 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 512 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:29:27,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9612 states. [2024-09-12 19:29:30,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9612 to 8939. [2024-09-12 19:29:30,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8939 states, 8385 states have (on average 1.0766845557543232) internal successors, (9028), 8388 states have internal predecessors, (9028), 546 states have call successors, (546), 5 states have call predecessors, (546), 4 states have return successors, (545), 545 states have call predecessors, (545), 545 states have call successors, (545) [2024-09-12 19:29:30,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8939 states to 8939 states and 10119 transitions. [2024-09-12 19:29:30,855 INFO L78 Accepts]: Start accepts. Automaton has 8939 states and 10119 transitions. Word has length 219 [2024-09-12 19:29:30,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:30,855 INFO L474 AbstractCegarLoop]: Abstraction has 8939 states and 10119 transitions. [2024-09-12 19:29:30,855 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:29:30,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:30,855 INFO L276 IsEmpty]: Start isEmpty. Operand 8939 states and 10119 transitions. [2024-09-12 19:29:30,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-09-12 19:29:30,859 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:30,859 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:30,873 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-09-12 19:29:31,059 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:31,060 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:31,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:31,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2011829074, now seen corresponding path program 13 times [2024-09-12 19:29:31,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:31,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076823159] [2024-09-12 19:29:31,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:31,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:31,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:29:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:31,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:29:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:31,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:29:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:31,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:29:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:31,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:29:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:31,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:29:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:31,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:29:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:31,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:29:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:31,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:29:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:31,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:29:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:31,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:29:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:31,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:29:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:31,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 19:29:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:31,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 19:29:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:31,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 203 proven. 638 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-09-12 19:29:31,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:31,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076823159] [2024-09-12 19:29:31,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076823159] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:31,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123827094] [2024-09-12 19:29:31,378 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 19:29:31,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:31,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:31,380 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:29:31,385 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-09-12 19:29:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:29:31,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 19:29:31,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:31,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 257 proven. 584 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-09-12 19:29:31,773 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:32,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 257 proven. 584 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-09-12 19:29:32,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123827094] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:29:32,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:29:32,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 21 [2024-09-12 19:29:32,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999054949] [2024-09-12 19:29:32,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:32,062 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 19:29:32,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:32,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 19:29:32,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:29:32,063 INFO L87 Difference]: Start difference. First operand 8939 states and 10119 transitions. Second operand has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 19 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 19 states have call predecessors, (21), 19 states have call successors, (21) [2024-09-12 19:29:37,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:37,085 INFO L93 Difference]: Finished difference Result 17423 states and 20009 transitions. [2024-09-12 19:29:37,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:29:37,085 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 19 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 19 states have call predecessors, (21), 19 states have call successors, (21) Word has length 239 [2024-09-12 19:29:37,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:37,109 INFO L225 Difference]: With dead ends: 17423 [2024-09-12 19:29:37,110 INFO L226 Difference]: Without dead ends: 13040 [2024-09-12 19:29:37,121 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 489 SyntacticMatches, 11 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2024-09-12 19:29:37,122 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 30 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:37,122 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 589 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:29:37,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13040 states. [2024-09-12 19:29:40,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13040 to 10335. [2024-09-12 19:29:40,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10335 states, 9694 states have (on average 1.073653806478234) internal successors, (10408), 9697 states have internal predecessors, (10408), 633 states have call successors, (633), 5 states have call predecessors, (633), 4 states have return successors, (632), 632 states have call predecessors, (632), 632 states have call successors, (632) [2024-09-12 19:29:40,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10335 states to 10335 states and 11673 transitions. [2024-09-12 19:29:40,764 INFO L78 Accepts]: Start accepts. Automaton has 10335 states and 11673 transitions. Word has length 239 [2024-09-12 19:29:40,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:40,764 INFO L474 AbstractCegarLoop]: Abstraction has 10335 states and 11673 transitions. [2024-09-12 19:29:40,765 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 13.380952380952381) internal successors, (281), 21 states have internal predecessors, (281), 19 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 19 states have call predecessors, (21), 19 states have call successors, (21) [2024-09-12 19:29:40,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:40,765 INFO L276 IsEmpty]: Start isEmpty. Operand 10335 states and 11673 transitions. [2024-09-12 19:29:40,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-09-12 19:29:40,767 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:40,767 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:40,779 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-09-12 19:29:40,968 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:40,968 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:40,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:40,969 INFO L85 PathProgramCache]: Analyzing trace with hash -88766867, now seen corresponding path program 14 times [2024-09-12 19:29:40,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:40,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607280488] [2024-09-12 19:29:40,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:40,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:29:40,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [109797819] [2024-09-12 19:29:40,993 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:29:40,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:40,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:40,995 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:29:40,999 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-09-12 19:29:41,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:29:41,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:29:41,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 19:29:41,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:41,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 0 proven. 888 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-09-12 19:29:41,520 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:42,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:42,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607280488] [2024-09-12 19:29:42,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:29:42,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109797819] [2024-09-12 19:29:42,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109797819] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:42,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:29:42,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 19:29:42,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253128968] [2024-09-12 19:29:42,671 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:42,671 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:29:42,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:42,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:29:42,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:29:42,672 INFO L87 Difference]: Start difference. First operand 10335 states and 11673 transitions. Second operand has 11 states, 10 states have (on average 14.2) internal successors, (142), 11 states have internal predecessors, (142), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:29:46,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:46,452 INFO L93 Difference]: Finished difference Result 10336 states and 11673 transitions. [2024-09-12 19:29:46,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:29:46,453 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.2) internal successors, (142), 11 states have internal predecessors, (142), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 259 [2024-09-12 19:29:46,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:46,478 INFO L225 Difference]: With dead ends: 10336 [2024-09-12 19:29:46,478 INFO L226 Difference]: Without dead ends: 10335 [2024-09-12 19:29:46,480 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:29:46,480 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 17 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:46,480 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 750 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:29:46,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10335 states. [2024-09-12 19:29:49,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10335 to 10335. [2024-09-12 19:29:49,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10335 states, 9694 states have (on average 1.0735506498865277) internal successors, (10407), 9697 states have internal predecessors, (10407), 633 states have call successors, (633), 5 states have call predecessors, (633), 4 states have return successors, (632), 632 states have call predecessors, (632), 632 states have call successors, (632) [2024-09-12 19:29:49,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10335 states to 10335 states and 11672 transitions. [2024-09-12 19:29:49,978 INFO L78 Accepts]: Start accepts. Automaton has 10335 states and 11672 transitions. Word has length 259 [2024-09-12 19:29:49,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:49,979 INFO L474 AbstractCegarLoop]: Abstraction has 10335 states and 11672 transitions. [2024-09-12 19:29:49,979 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.2) internal successors, (142), 11 states have internal predecessors, (142), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:29:49,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:49,979 INFO L276 IsEmpty]: Start isEmpty. Operand 10335 states and 11672 transitions. [2024-09-12 19:29:49,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-09-12 19:29:49,982 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:49,982 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:49,994 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-09-12 19:29:50,183 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:50,183 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:50,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:50,183 INFO L85 PathProgramCache]: Analyzing trace with hash 575873807, now seen corresponding path program 15 times [2024-09-12 19:29:50,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:50,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070791321] [2024-09-12 19:29:50,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:50,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:29:50,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1746015050] [2024-09-12 19:29:50,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:29:50,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:50,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:50,207 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:29:50,209 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-09-12 19:29:50,278 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-09-12 19:29:50,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:29:50,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:29:50,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:50,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1252 backedges. 0 proven. 816 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2024-09-12 19:29:50,536 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:50,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:50,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070791321] [2024-09-12 19:29:50,756 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:29:50,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746015050] [2024-09-12 19:29:50,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746015050] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:50,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:29:50,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 19:29:50,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308000060] [2024-09-12 19:29:50,756 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:50,757 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:29:50,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:50,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:29:50,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:29:50,757 INFO L87 Difference]: Start difference. First operand 10335 states and 11672 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:29:54,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:29:54,637 INFO L93 Difference]: Finished difference Result 16170 states and 18408 transitions. [2024-09-12 19:29:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 19:29:54,637 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 259 [2024-09-12 19:29:54,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:29:54,664 INFO L225 Difference]: With dead ends: 16170 [2024-09-12 19:29:54,664 INFO L226 Difference]: Without dead ends: 9933 [2024-09-12 19:29:54,674 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=178, Invalid=752, Unknown=0, NotChecked=0, Total=930 [2024-09-12 19:29:54,675 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 139 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:29:54,675 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 417 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:29:54,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9933 states. [2024-09-12 19:29:58,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9933 to 9760. [2024-09-12 19:29:58,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9760 states, 9151 states have (on average 1.0755108731286198) internal successors, (9842), 9154 states have internal predecessors, (9842), 601 states have call successors, (601), 5 states have call predecessors, (601), 4 states have return successors, (600), 600 states have call predecessors, (600), 600 states have call successors, (600) [2024-09-12 19:29:58,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9760 states to 9760 states and 11043 transitions. [2024-09-12 19:29:58,273 INFO L78 Accepts]: Start accepts. Automaton has 9760 states and 11043 transitions. Word has length 259 [2024-09-12 19:29:58,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:29:58,273 INFO L474 AbstractCegarLoop]: Abstraction has 9760 states and 11043 transitions. [2024-09-12 19:29:58,273 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 10 states have internal predecessors, (112), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:29:58,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:58,273 INFO L276 IsEmpty]: Start isEmpty. Operand 9760 states and 11043 transitions. [2024-09-12 19:29:58,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-09-12 19:29:58,276 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:29:58,276 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:29:58,287 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-09-12 19:29:58,476 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-09-12 19:29:58,477 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:29:58,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:29:58,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1378899781, now seen corresponding path program 16 times [2024-09-12 19:29:58,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:29:58,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185825042] [2024-09-12 19:29:58,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:29:58,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:29:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:29:58,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [74412821] [2024-09-12 19:29:58,497 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:29:58,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:29:58,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:29:58,502 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:29:58,504 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-09-12 19:29:58,589 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:29:58,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:29:58,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-12 19:29:58,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:29:59,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 30 proven. 862 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-09-12 19:29:59,125 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:29:59,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:29:59,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185825042] [2024-09-12 19:29:59,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:29:59,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74412821] [2024-09-12 19:29:59,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74412821] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:29:59,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:29:59,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 19:29:59,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411140903] [2024-09-12 19:29:59,467 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:29:59,467 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:29:59,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:29:59,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:29:59,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:29:59,468 INFO L87 Difference]: Start difference. First operand 9760 states and 11043 transitions. Second operand has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 9 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 9 states have call successors, (11) [2024-09-12 19:30:03,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:30:03,483 INFO L93 Difference]: Finished difference Result 10263 states and 11610 transitions. [2024-09-12 19:30:03,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:30:03,483 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 9 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 9 states have call successors, (11) Word has length 259 [2024-09-12 19:30:03,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:30:03,513 INFO L225 Difference]: With dead ends: 10263 [2024-09-12 19:30:03,514 INFO L226 Difference]: Without dead ends: 10262 [2024-09-12 19:30:03,516 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2024-09-12 19:30:03,517 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 35 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:30:03,517 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 583 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:30:03,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10262 states. [2024-09-12 19:30:06,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10262 to 9769. [2024-09-12 19:30:06,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9769 states, 9159 states have (on average 1.0755540997925537) internal successors, (9851), 9162 states have internal predecessors, (9851), 602 states have call successors, (602), 5 states have call predecessors, (602), 4 states have return successors, (601), 601 states have call predecessors, (601), 601 states have call successors, (601) [2024-09-12 19:30:06,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9769 states to 9769 states and 11054 transitions. [2024-09-12 19:30:06,808 INFO L78 Accepts]: Start accepts. Automaton has 9769 states and 11054 transitions. Word has length 259 [2024-09-12 19:30:06,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:30:06,808 INFO L474 AbstractCegarLoop]: Abstraction has 9769 states and 11054 transitions. [2024-09-12 19:30:06,808 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 9 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 8 states have call predecessors, (11), 9 states have call successors, (11) [2024-09-12 19:30:06,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:06,809 INFO L276 IsEmpty]: Start isEmpty. Operand 9769 states and 11054 transitions. [2024-09-12 19:30:06,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-09-12 19:30:06,812 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:30:06,812 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:30:06,824 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-09-12 19:30:07,012 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:07,013 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:30:07,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:07,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1282806600, now seen corresponding path program 17 times [2024-09-12 19:30:07,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:30:07,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136320105] [2024-09-12 19:30:07,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:30:07,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:30:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:30:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:30:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:30:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:30:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:30:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:30:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:30:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:30:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:30:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:30:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:30:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:30:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 19:30:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 19:30:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 19:30:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 19:30:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:07,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 287 proven. 912 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-09-12 19:30:07,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:30:07,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136320105] [2024-09-12 19:30:07,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136320105] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:30:07,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733628352] [2024-09-12 19:30:07,355 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:30:07,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:07,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:30:07,357 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:30:07,358 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-09-12 19:30:07,446 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-09-12 19:30:07,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:30:07,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:30:07,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:30:07,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 355 proven. 844 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-09-12 19:30:07,765 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:30:08,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 355 proven. 844 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-09-12 19:30:08,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733628352] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:30:08,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:30:08,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 24 [2024-09-12 19:30:08,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104454827] [2024-09-12 19:30:08,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:30:08,043 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 19:30:08,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:30:08,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 19:30:08,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:30:08,044 INFO L87 Difference]: Start difference. First operand 9769 states and 11054 transitions. Second operand has 24 states, 24 states have (on average 13.583333333333334) internal successors, (326), 24 states have internal predecessors, (326), 22 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-09-12 19:30:13,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:30:13,240 INFO L93 Difference]: Finished difference Result 18025 states and 20668 transitions. [2024-09-12 19:30:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:30:13,240 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 13.583333333333334) internal successors, (326), 24 states have internal predecessors, (326), 22 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) Word has length 279 [2024-09-12 19:30:13,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:30:13,268 INFO L225 Difference]: With dead ends: 18025 [2024-09-12 19:30:13,268 INFO L226 Difference]: Without dead ends: 13829 [2024-09-12 19:30:13,277 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 570 SyntacticMatches, 13 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:30:13,277 INFO L434 NwaCegarLoop]: 120 mSDtfsCounter, 25 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:30:13,277 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 872 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1531 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:30:13,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13829 states. [2024-09-12 19:30:17,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13829 to 11396. [2024-09-12 19:30:17,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11396 states, 10684 states have (on average 1.0733807562710596) internal successors, (11468), 10687 states have internal predecessors, (11468), 704 states have call successors, (704), 5 states have call predecessors, (704), 4 states have return successors, (703), 703 states have call predecessors, (703), 703 states have call successors, (703) [2024-09-12 19:30:17,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11396 states to 11396 states and 12875 transitions. [2024-09-12 19:30:17,181 INFO L78 Accepts]: Start accepts. Automaton has 11396 states and 12875 transitions. Word has length 279 [2024-09-12 19:30:17,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:30:17,182 INFO L474 AbstractCegarLoop]: Abstraction has 11396 states and 12875 transitions. [2024-09-12 19:30:17,182 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 13.583333333333334) internal successors, (326), 24 states have internal predecessors, (326), 22 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-09-12 19:30:17,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:17,182 INFO L276 IsEmpty]: Start isEmpty. Operand 11396 states and 12875 transitions. [2024-09-12 19:30:17,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-09-12 19:30:17,186 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:30:17,186 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:30:17,201 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-09-12 19:30:17,386 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:17,386 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:30:17,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:17,387 INFO L85 PathProgramCache]: Analyzing trace with hash -267776099, now seen corresponding path program 18 times [2024-09-12 19:30:17,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:30:17,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243293374] [2024-09-12 19:30:17,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:30:17,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:30:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:30:17,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [91404625] [2024-09-12 19:30:17,414 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 19:30:17,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:17,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:30:17,416 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:30:17,417 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-09-12 19:30:17,543 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2024-09-12 19:30:17,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:30:17,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-09-12 19:30:17,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:30:19,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1670 backedges. 39 proven. 1305 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-09-12 19:30:19,642 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:30:20,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:30:20,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243293374] [2024-09-12 19:30:20,506 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:30:20,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91404625] [2024-09-12 19:30:20,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91404625] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:30:20,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:30:20,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2024-09-12 19:30:20,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767000492] [2024-09-12 19:30:20,507 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:30:20,507 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-09-12 19:30:20,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:30:20,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-09-12 19:30:20,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=1656, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 19:30:20,509 INFO L87 Difference]: Start difference. First operand 11396 states and 12875 transitions. Second operand has 41 states, 39 states have (on average 5.846153846153846) internal successors, (228), 39 states have internal predecessors, (228), 17 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:30:26,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:30:26,834 INFO L93 Difference]: Finished difference Result 11397 states and 12875 transitions. [2024-09-12 19:30:26,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-09-12 19:30:26,835 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 39 states have (on average 5.846153846153846) internal successors, (228), 39 states have internal predecessors, (228), 17 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) Word has length 299 [2024-09-12 19:30:26,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:30:26,867 INFO L225 Difference]: With dead ends: 11397 [2024-09-12 19:30:26,867 INFO L226 Difference]: Without dead ends: 11396 [2024-09-12 19:30:26,872 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2832 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1906, Invalid=7214, Unknown=0, NotChecked=0, Total=9120 [2024-09-12 19:30:26,872 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 233 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:30:26,872 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 358 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 19:30:26,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11396 states. [2024-09-12 19:30:30,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11396 to 11396. [2024-09-12 19:30:30,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11396 states, 10684 states have (on average 1.0732871583676526) internal successors, (11467), 10687 states have internal predecessors, (11467), 704 states have call successors, (704), 5 states have call predecessors, (704), 4 states have return successors, (703), 703 states have call predecessors, (703), 703 states have call successors, (703) [2024-09-12 19:30:30,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11396 states to 11396 states and 12874 transitions. [2024-09-12 19:30:30,793 INFO L78 Accepts]: Start accepts. Automaton has 11396 states and 12874 transitions. Word has length 299 [2024-09-12 19:30:30,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:30:30,794 INFO L474 AbstractCegarLoop]: Abstraction has 11396 states and 12874 transitions. [2024-09-12 19:30:30,794 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 39 states have (on average 5.846153846153846) internal successors, (228), 39 states have internal predecessors, (228), 17 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:30:30,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:30,794 INFO L276 IsEmpty]: Start isEmpty. Operand 11396 states and 12874 transitions. [2024-09-12 19:30:30,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-09-12 19:30:30,798 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:30:30,799 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:30:30,811 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-09-12 19:30:30,999 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-09-12 19:30:30,999 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:30:30,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:31,000 INFO L85 PathProgramCache]: Analyzing trace with hash 895189419, now seen corresponding path program 19 times [2024-09-12 19:30:31,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:30:31,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384812260] [2024-09-12 19:30:31,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:30:31,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:30:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:30:31,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193768046] [2024-09-12 19:30:31,022 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 19:30:31,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:31,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:30:31,027 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:30:31,031 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-09-12 19:30:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:31,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-09-12 19:30:31,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:30:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 39 proven. 1402 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-09-12 19:30:32,228 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:30:32,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:30:32,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384812260] [2024-09-12 19:30:32,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:30:32,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193768046] [2024-09-12 19:30:32,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193768046] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:30:32,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:30:32,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2024-09-12 19:30:32,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174612824] [2024-09-12 19:30:32,802 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:30:32,802 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-12 19:30:32,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:30:32,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-12 19:30:32,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1240, Unknown=0, NotChecked=0, Total=1332 [2024-09-12 19:30:32,803 INFO L87 Difference]: Start difference. First operand 11396 states and 12874 transitions. Second operand has 34 states, 33 states have (on average 6.818181818181818) internal successors, (225), 34 states have internal predecessors, (225), 15 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2024-09-12 19:30:39,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:30:39,281 INFO L93 Difference]: Finished difference Result 15817 states and 18008 transitions. [2024-09-12 19:30:39,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-12 19:30:39,282 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 6.818181818181818) internal successors, (225), 34 states have internal predecessors, (225), 15 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 299 [2024-09-12 19:30:39,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:30:39,313 INFO L225 Difference]: With dead ends: 15817 [2024-09-12 19:30:39,314 INFO L226 Difference]: Without dead ends: 11592 [2024-09-12 19:30:39,325 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=200, Invalid=2350, Unknown=0, NotChecked=0, Total=2550 [2024-09-12 19:30:39,325 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 94 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 6995 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 7009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 6995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:30:39,326 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1634 Invalid, 7009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 6995 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-09-12 19:30:39,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11592 states. [2024-09-12 19:30:43,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11592 to 11348. [2024-09-12 19:30:43,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11348 states, 10638 states have (on average 1.0732280503854108) internal successors, (11417), 10641 states have internal predecessors, (11417), 702 states have call successors, (702), 5 states have call predecessors, (702), 4 states have return successors, (701), 701 states have call predecessors, (701), 701 states have call successors, (701) [2024-09-12 19:30:43,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11348 states to 11348 states and 12820 transitions. [2024-09-12 19:30:43,237 INFO L78 Accepts]: Start accepts. Automaton has 11348 states and 12820 transitions. Word has length 299 [2024-09-12 19:30:43,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:30:43,238 INFO L474 AbstractCegarLoop]: Abstraction has 11348 states and 12820 transitions. [2024-09-12 19:30:43,238 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.818181818181818) internal successors, (225), 34 states have internal predecessors, (225), 15 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2024-09-12 19:30:43,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:43,238 INFO L276 IsEmpty]: Start isEmpty. Operand 11348 states and 12820 transitions. [2024-09-12 19:30:43,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-09-12 19:30:43,242 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:30:43,242 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:30:43,254 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-09-12 19:30:43,442 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-09-12 19:30:43,442 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:30:43,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:43,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1692330993, now seen corresponding path program 3 times [2024-09-12 19:30:43,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:30:43,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254423978] [2024-09-12 19:30:43,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:30:43,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:30:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:30:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:30:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:30:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:30:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:30:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:30:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:30:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:30:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:30:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,767 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:30:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:30:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:30:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 19:30:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 19:30:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 19:30:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 19:30:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 19:30:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 19:30:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:30:43,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 0 proven. 1610 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-09-12 19:30:43,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:30:43,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254423978] [2024-09-12 19:30:43,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254423978] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:30:43,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798770684] [2024-09-12 19:30:43,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:30:43,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:43,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:30:43,799 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:30:43,800 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-09-12 19:30:43,882 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-09-12 19:30:43,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:30:43,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 19:30:43,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:30:44,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 0 proven. 1610 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-09-12 19:30:44,132 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:30:44,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2034 backedges. 0 proven. 1610 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-09-12 19:30:44,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798770684] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:30:44,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:30:44,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 32 [2024-09-12 19:30:44,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496689146] [2024-09-12 19:30:44,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:30:44,589 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-12 19:30:44,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:30:44,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-12 19:30:44,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 19:30:44,590 INFO L87 Difference]: Start difference. First operand 11348 states and 12820 transitions. Second operand has 33 states, 32 states have (on average 14.5) internal successors, (464), 33 states have internal predecessors, (464), 32 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (34), 32 states have call predecessors, (34), 32 states have call successors, (34) [2024-09-12 19:30:50,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:30:50,712 INFO L93 Difference]: Finished difference Result 16452 states and 19183 transitions. [2024-09-12 19:30:50,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-12 19:30:50,712 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 14.5) internal successors, (464), 33 states have internal predecessors, (464), 32 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (34), 32 states have call predecessors, (34), 32 states have call successors, (34) Word has length 311 [2024-09-12 19:30:50,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:30:50,763 INFO L225 Difference]: With dead ends: 16452 [2024-09-12 19:30:50,764 INFO L226 Difference]: Without dead ends: 16451 [2024-09-12 19:30:50,769 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 673 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 19:30:50,770 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 20 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:30:50,770 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 281 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:30:50,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16451 states. [2024-09-12 19:30:56,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16451 to 16451. [2024-09-12 19:30:56,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16451 states, 15422 states have (on average 1.0907794060433147) internal successors, (16822), 15425 states have internal predecessors, (16822), 1021 states have call successors, (1021), 5 states have call predecessors, (1021), 4 states have return successors, (1020), 1020 states have call predecessors, (1020), 1020 states have call successors, (1020) [2024-09-12 19:30:56,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16451 states to 16451 states and 18863 transitions. [2024-09-12 19:30:56,510 INFO L78 Accepts]: Start accepts. Automaton has 16451 states and 18863 transitions. Word has length 311 [2024-09-12 19:30:56,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:30:56,510 INFO L474 AbstractCegarLoop]: Abstraction has 16451 states and 18863 transitions. [2024-09-12 19:30:56,510 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 14.5) internal successors, (464), 33 states have internal predecessors, (464), 32 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (34), 32 states have call predecessors, (34), 32 states have call successors, (34) [2024-09-12 19:30:56,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:56,511 INFO L276 IsEmpty]: Start isEmpty. Operand 16451 states and 18863 transitions. [2024-09-12 19:30:56,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-09-12 19:30:56,515 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:30:56,515 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:30:56,527 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-09-12 19:30:56,715 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:56,716 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:30:56,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:30:56,716 INFO L85 PathProgramCache]: Analyzing trace with hash -519429656, now seen corresponding path program 20 times [2024-09-12 19:30:56,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:30:56,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879006468] [2024-09-12 19:30:56,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:30:56,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:30:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:30:56,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [393305449] [2024-09-12 19:30:56,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:30:56,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:30:56,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:30:56,739 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:30:56,741 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-09-12 19:30:56,817 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:30:56,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:30:56,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 19:30:56,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:30:57,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2005 backedges. 0 proven. 1293 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2024-09-12 19:30:57,393 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:30:57,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:30:57,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879006468] [2024-09-12 19:30:57,649 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:30:57,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393305449] [2024-09-12 19:30:57,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393305449] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:30:57,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:30:57,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 19:30:57,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177873550] [2024-09-12 19:30:57,649 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:30:57,650 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:30:57,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:30:57,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:30:57,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:30:57,651 INFO L87 Difference]: Start difference. First operand 16451 states and 18863 transitions. Second operand has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:31:04,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:04,209 INFO L93 Difference]: Finished difference Result 17994 states and 20657 transitions. [2024-09-12 19:31:04,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:31:04,210 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 319 [2024-09-12 19:31:04,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:04,274 INFO L225 Difference]: With dead ends: 17994 [2024-09-12 19:31:04,274 INFO L226 Difference]: Without dead ends: 17993 [2024-09-12 19:31:04,283 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:31:04,283 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 21 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:04,283 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 384 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:31:04,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17993 states. [2024-09-12 19:31:10,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17993 to 17400. [2024-09-12 19:31:10,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17400 states, 16313 states have (on average 1.0915833997425366) internal successors, (17807), 16316 states have internal predecessors, (17807), 1079 states have call successors, (1079), 5 states have call predecessors, (1079), 4 states have return successors, (1078), 1078 states have call predecessors, (1078), 1078 states have call successors, (1078) [2024-09-12 19:31:10,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17400 states to 17400 states and 19964 transitions. [2024-09-12 19:31:10,827 INFO L78 Accepts]: Start accepts. Automaton has 17400 states and 19964 transitions. Word has length 319 [2024-09-12 19:31:10,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:10,827 INFO L474 AbstractCegarLoop]: Abstraction has 17400 states and 19964 transitions. [2024-09-12 19:31:10,827 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:31:10,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:10,828 INFO L276 IsEmpty]: Start isEmpty. Operand 17400 states and 19964 transitions. [2024-09-12 19:31:10,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-09-12 19:31:10,833 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:10,834 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 13, 13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:10,850 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-09-12 19:31:11,034 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 19:31:11,034 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:31:11,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:11,035 INFO L85 PathProgramCache]: Analyzing trace with hash -290494434, now seen corresponding path program 21 times [2024-09-12 19:31:11,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:11,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424044565] [2024-09-12 19:31:11,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:11,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:31:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:31:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:31:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,382 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-12 19:31:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 19:31:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:31:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-09-12 19:31:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-09-12 19:31:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-09-12 19:31:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-09-12 19:31:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-09-12 19:31:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 19:31:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-09-12 19:31:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 19:31:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 19:31:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-09-12 19:31:11,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-09-12 19:31:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 19:31:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:11,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 387 proven. 1234 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-09-12 19:31:11,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:11,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424044565] [2024-09-12 19:31:11,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424044565] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:31:11,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498165910] [2024-09-12 19:31:11,405 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:31:11,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:31:11,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:31:11,406 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:31:11,407 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-09-12 19:31:11,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-09-12 19:31:11,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:31:11,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 19:31:11,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:31:11,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 0 proven. 1201 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2024-09-12 19:31:11,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:31:12,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498165910] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:31:12,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:31:12,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11] total 28 [2024-09-12 19:31:12,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292178441] [2024-09-12 19:31:12,258 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:31:12,258 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-12 19:31:12,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:12,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-12 19:31:12,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2024-09-12 19:31:12,260 INFO L87 Difference]: Start difference. First operand 17400 states and 19964 transitions. Second operand has 28 states, 28 states have (on average 13.071428571428571) internal successors, (366), 28 states have internal predecessors, (366), 24 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) [2024-09-12 19:31:24,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:24,173 INFO L93 Difference]: Finished difference Result 35603 states and 41356 transitions. [2024-09-12 19:31:24,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-09-12 19:31:24,174 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 13.071428571428571) internal successors, (366), 28 states have internal predecessors, (366), 24 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) Word has length 319 [2024-09-12 19:31:24,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:24,251 INFO L225 Difference]: With dead ends: 35603 [2024-09-12 19:31:24,251 INFO L226 Difference]: Without dead ends: 27146 [2024-09-12 19:31:24,271 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1613 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=664, Invalid=5036, Unknown=0, NotChecked=0, Total=5700 [2024-09-12 19:31:24,271 INFO L434 NwaCegarLoop]: 162 mSDtfsCounter, 513 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 4422 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 4470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 4422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:24,271 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 1901 Invalid, 4470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 4422 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-09-12 19:31:24,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27146 states. [2024-09-12 19:31:31,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27146 to 19703. [2024-09-12 19:31:31,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19703 states, 18471 states have (on average 1.088462996047859) internal successors, (20105), 18474 states have internal predecessors, (20105), 1224 states have call successors, (1224), 5 states have call predecessors, (1224), 4 states have return successors, (1223), 1223 states have call predecessors, (1223), 1223 states have call successors, (1223) [2024-09-12 19:31:31,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19703 states to 19703 states and 22552 transitions. [2024-09-12 19:31:31,991 INFO L78 Accepts]: Start accepts. Automaton has 19703 states and 22552 transitions. Word has length 319 [2024-09-12 19:31:31,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:31,992 INFO L474 AbstractCegarLoop]: Abstraction has 19703 states and 22552 transitions. [2024-09-12 19:31:31,992 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 13.071428571428571) internal successors, (366), 28 states have internal predecessors, (366), 24 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) [2024-09-12 19:31:31,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:31,992 INFO L276 IsEmpty]: Start isEmpty. Operand 19703 states and 22552 transitions. [2024-09-12 19:31:31,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-09-12 19:31:31,997 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:31,997 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:32,003 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-09-12 19:31:32,198 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,48 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:31:32,198 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-09-12 19:31:32,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:32,198 INFO L85 PathProgramCache]: Analyzing trace with hash 376023245, now seen corresponding path program 22 times [2024-09-12 19:31:32,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:32,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773958306] [2024-09-12 19:31:32,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:32,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:31:32,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2103225007] [2024-09-12 19:31:32,222 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:31:32,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:31:32,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:31:32,224 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:31:32,229 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-09-12 19:31:32,330 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:31:32,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:31:32,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 19:31:32,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:31:32,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2196 backedges. 0 proven. 1628 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2024-09-12 19:31:32,953 INFO L327 TraceCheckSpWp]: Computing backward predicates...