./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.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/ps5-ll_valuebound2.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 1c1067a232ccde2ed577e0679695f102973a28bf8615edad0a3c87e54d273eb4 --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 19:40:53,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:40:54,052 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:40:54,057 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:40:54,058 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:40:54,091 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:40:54,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:40:54,092 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:40:54,092 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:40:54,095 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:40:54,095 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:40:54,095 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:40:54,096 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:40:54,096 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:40:54,096 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:40:54,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:40:54,096 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:40:54,097 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:40:54,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:40:54,097 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:40:54,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:40:54,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:40:54,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:40:54,098 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:40:54,099 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:40:54,099 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:40:54,099 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:40:54,099 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:40:54,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:40:54,100 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:40:54,100 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:40:54,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:40:54,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:40:54,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:40:54,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:40:54,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:40:54,102 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:40:54,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:40:54,102 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:40:54,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:40:54,103 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:40:54,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:40:54,103 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c1067a232ccde2ed577e0679695f102973a28bf8615edad0a3c87e54d273eb4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:40:54,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:40:54,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:40:54,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:40:54,378 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:40:54,378 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:40:54,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c [2024-09-12 19:40:55,804 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:40:55,953 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:40:55,954 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c [2024-09-12 19:40:55,959 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/91722255d/b88479244b124fccaad36c65f7f91a6f/FLAG8826b1843 [2024-09-12 19:40:56,361 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/91722255d/b88479244b124fccaad36c65f7f91a6f [2024-09-12 19:40:56,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:40:56,364 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:40:56,365 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:40:56,365 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:40:56,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:40:56,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:40:56" (1/1) ... [2024-09-12 19:40:56,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f04d5a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:40:56, skipping insertion in model container [2024-09-12 19:40:56,370 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:40:56" (1/1) ... [2024-09-12 19:40:56,383 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:40:56,495 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/ps5-ll_valuebound2.c[458,471] [2024-09-12 19:40:56,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:40:56,530 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:40:56,540 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/ps5-ll_valuebound2.c[458,471] [2024-09-12 19:40:56,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:40:56,565 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:40:56,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:40:56 WrapperNode [2024-09-12 19:40:56,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:40:56,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:40:56,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:40:56,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:40:56,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:40:56" (1/1) ... [2024-09-12 19:40:56,580 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:40:56" (1/1) ... [2024-09-12 19:40:56,589 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:40:56,593 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:40:56,594 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:40:56,594 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:40:56,594 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:40:56,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:40:56" (1/1) ... [2024-09-12 19:40:56,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:40:56" (1/1) ... [2024-09-12 19:40:56,603 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:40:56" (1/1) ... [2024-09-12 19:40:56,621 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 19:40:56,621 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:40:56" (1/1) ... [2024-09-12 19:40:56,621 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:40:56" (1/1) ... [2024-09-12 19:40:56,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:40:56" (1/1) ... [2024-09-12 19:40:56,626 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:40:56" (1/1) ... [2024-09-12 19:40:56,644 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:40:56" (1/1) ... [2024-09-12 19:40:56,645 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:40:56" (1/1) ... [2024-09-12 19:40:56,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:40:56,646 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:40:56,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:40:56,647 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:40:56,654 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:40:56" (1/1) ... [2024-09-12 19:40:56,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:40:56,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:40:56,683 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 19:40:56,688 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 19:40:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:40:56,724 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:40:56,724 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:40:56,724 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:40:56,724 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:40:56,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:40:56,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:40:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:40:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:40:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:40:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:40:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:40:56,776 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:40:56,778 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:40:57,140 INFO L? ?]: Removed 88 outVars from TransFormulas that were not future-live. [2024-09-12 19:40:57,141 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:40:57,176 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:40:57,177 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:40:57,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:40:57 BoogieIcfgContainer [2024-09-12 19:40:57,177 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:40:57,179 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:40:57,180 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:40:57,182 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:40:57,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:40:56" (1/3) ... [2024-09-12 19:40:57,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289bc39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:40:57, skipping insertion in model container [2024-09-12 19:40:57,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:40:56" (2/3) ... [2024-09-12 19:40:57,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289bc39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:40:57, skipping insertion in model container [2024-09-12 19:40:57,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:40:57" (3/3) ... [2024-09-12 19:40:57,185 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound2.c [2024-09-12 19:40:57,218 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:40:57,218 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 85 error locations. [2024-09-12 19:40:57,284 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:40:57,291 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;@48d63889, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:40:57,291 INFO L337 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2024-09-12 19:40:57,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 195 states, 98 states have (on average 1.9183673469387754) internal successors, (188), 183 states have internal predecessors, (188), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:40:57,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 19:40:57,301 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:40:57,302 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:40:57,302 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:40:57,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:40:57,308 INFO L85 PathProgramCache]: Analyzing trace with hash 788119831, now seen corresponding path program 1 times [2024-09-12 19:40:57,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:40:57,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827398614] [2024-09-12 19:40:57,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:40:57,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:40:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:57,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:40:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:57,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:40:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:57,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:40:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:57,457 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 19:40:57,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:40:57,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827398614] [2024-09-12 19:40:57,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827398614] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:40:57,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:40:57,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:40:57,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758376786] [2024-09-12 19:40:57,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:40:57,465 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:40:57,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:40:57,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:40:57,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:40:57,490 INFO L87 Difference]: Start difference. First operand has 195 states, 98 states have (on average 1.9183673469387754) internal successors, (188), 183 states have internal predecessors, (188), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 4.0) 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 19:40:57,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:40:57,548 INFO L93 Difference]: Finished difference Result 371 states and 402 transitions. [2024-09-12 19:40:57,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:40:57,550 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 19:40:57,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:40:57,560 INFO L225 Difference]: With dead ends: 371 [2024-09-12 19:40:57,560 INFO L226 Difference]: Without dead ends: 178 [2024-09-12 19:40:57,566 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 19:40:57,571 INFO L434 NwaCegarLoop]: 183 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, 183 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 19:40:57,575 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 183 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:40:57,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-09-12 19:40:57,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2024-09-12 19:40:57,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 96 states have (on average 1.7604166666666667) internal successors, (169), 168 states have internal predecessors, (169), 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 19:40:57,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 181 transitions. [2024-09-12 19:40:57,661 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 181 transitions. Word has length 18 [2024-09-12 19:40:57,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:40:57,661 INFO L474 AbstractCegarLoop]: Abstraction has 178 states and 181 transitions. [2024-09-12 19:40:57,661 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 19:40:57,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:40:57,662 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 181 transitions. [2024-09-12 19:40:57,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 19:40:57,663 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:40:57,663 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:40:57,663 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:40:57,664 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:40:57,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:40:57,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1546442672, now seen corresponding path program 1 times [2024-09-12 19:40:57,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:40:57,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422771528] [2024-09-12 19:40:57,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:40:57,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:40:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:57,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:40:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:57,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:40:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:57,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:40:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:57,832 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 19:40:57,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:40:57,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422771528] [2024-09-12 19:40:57,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422771528] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:40:57,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:40:57,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:40:57,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849300696] [2024-09-12 19:40:57,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:40:57,837 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:40:57,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:40:57,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:40:57,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:40:57,838 INFO L87 Difference]: Start difference. First operand 178 states and 181 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 19:40:58,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:40:58,204 INFO L93 Difference]: Finished difference Result 316 states and 330 transitions. [2024-09-12 19:40:58,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:40:58,204 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 19:40:58,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:40:58,207 INFO L225 Difference]: With dead ends: 316 [2024-09-12 19:40:58,209 INFO L226 Difference]: Without dead ends: 265 [2024-09-12 19:40:58,209 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 19:40:58,211 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 83 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:40:58,211 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 137 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:40:58,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-09-12 19:40:58,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 258. [2024-09-12 19:40:58,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 174 states have (on average 1.5057471264367817) internal successors, (262), 246 states have internal predecessors, (262), 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 19:40:58,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 278 transitions. [2024-09-12 19:40:58,233 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 278 transitions. Word has length 18 [2024-09-12 19:40:58,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:40:58,234 INFO L474 AbstractCegarLoop]: Abstraction has 258 states and 278 transitions. [2024-09-12 19:40:58,235 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 19:40:58,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:40:58,235 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 278 transitions. [2024-09-12 19:40:58,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 19:40:58,236 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:40:58,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:40:58,236 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:40:58,236 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:40:58,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:40:58,237 INFO L85 PathProgramCache]: Analyzing trace with hash 541681420, now seen corresponding path program 1 times [2024-09-12 19:40:58,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:40:58,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013229616] [2024-09-12 19:40:58,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:40:58,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:40:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:58,318 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:40:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:58,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:40:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:58,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:40:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:58,329 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 19:40:58,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:40:58,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013229616] [2024-09-12 19:40:58,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013229616] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:40:58,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:40:58,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:40:58,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702915942] [2024-09-12 19:40:58,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:40:58,330 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:40:58,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:40:58,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:40:58,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:40:58,331 INFO L87 Difference]: Start difference. First operand 258 states and 278 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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 19:40:58,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:40:58,405 INFO L93 Difference]: Finished difference Result 278 states and 293 transitions. [2024-09-12 19:40:58,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:40:58,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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 46 [2024-09-12 19:40:58,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:40:58,407 INFO L225 Difference]: With dead ends: 278 [2024-09-12 19:40:58,407 INFO L226 Difference]: Without dead ends: 273 [2024-09-12 19:40:58,407 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 19:40:58,408 INFO L434 NwaCegarLoop]: 157 mSDtfsCounter, 63 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:40:58,409 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 307 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:40:58,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-09-12 19:40:58,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 265. [2024-09-12 19:40:58,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 181 states have (on average 1.4861878453038675) internal successors, (269), 253 states have internal predecessors, (269), 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 19:40:58,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 285 transitions. [2024-09-12 19:40:58,423 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 285 transitions. Word has length 46 [2024-09-12 19:40:58,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:40:58,424 INFO L474 AbstractCegarLoop]: Abstraction has 265 states and 285 transitions. [2024-09-12 19:40:58,424 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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 19:40:58,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:40:58,424 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 285 transitions. [2024-09-12 19:40:58,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 19:40:58,425 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:40:58,425 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:40:58,426 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:40:58,426 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:40:58,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:40:58,426 INFO L85 PathProgramCache]: Analyzing trace with hash 864805486, now seen corresponding path program 1 times [2024-09-12 19:40:58,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:40:58,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970157771] [2024-09-12 19:40:58,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:40:58,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:40:58,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:58,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:40:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:58,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:40:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:58,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:40:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:58,541 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 19:40:58,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:40:58,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970157771] [2024-09-12 19:40:58,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970157771] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:40:58,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:40:58,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:40:58,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186001457] [2024-09-12 19:40:58,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:40:58,542 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:40:58,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:40:58,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:40:58,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:40:58,543 INFO L87 Difference]: Start difference. First operand 265 states and 285 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 19:40:58,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:40:58,717 INFO L93 Difference]: Finished difference Result 277 states and 288 transitions. [2024-09-12 19:40:58,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:40:58,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 48 [2024-09-12 19:40:58,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:40:58,719 INFO L225 Difference]: With dead ends: 277 [2024-09-12 19:40:58,719 INFO L226 Difference]: Without dead ends: 272 [2024-09-12 19:40:58,720 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 19:40:58,721 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 143 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:40:58,721 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 240 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:40:58,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-09-12 19:40:58,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 265. [2024-09-12 19:40:58,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 181 states have (on average 1.4585635359116023) internal successors, (264), 253 states have internal predecessors, (264), 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 19:40:58,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 280 transitions. [2024-09-12 19:40:58,761 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 280 transitions. Word has length 48 [2024-09-12 19:40:58,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:40:58,761 INFO L474 AbstractCegarLoop]: Abstraction has 265 states and 280 transitions. [2024-09-12 19:40:58,762 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 19:40:58,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:40:58,762 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 280 transitions. [2024-09-12 19:40:58,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 19:40:58,765 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:40:58,765 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:40:58,765 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:40:58,765 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:40:58,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:40:58,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1039166409, now seen corresponding path program 1 times [2024-09-12 19:40:58,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:40:58,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785804034] [2024-09-12 19:40:58,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:40:58,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:40:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:58,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:40:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:58,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:40:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:58,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:40:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:58,870 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 19:40:58,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:40:58,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785804034] [2024-09-12 19:40:58,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785804034] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:40:58,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:40:58,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:40:58,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175244146] [2024-09-12 19:40:58,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:40:58,871 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:40:58,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:40:58,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:40:58,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:40:58,872 INFO L87 Difference]: Start difference. First operand 265 states and 280 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 19:40:59,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:40:59,038 INFO L93 Difference]: Finished difference Result 276 states and 283 transitions. [2024-09-12 19:40:59,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:40:59,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 49 [2024-09-12 19:40:59,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:40:59,040 INFO L225 Difference]: With dead ends: 276 [2024-09-12 19:40:59,040 INFO L226 Difference]: Without dead ends: 272 [2024-09-12 19:40:59,040 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 19:40:59,041 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 135 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:40:59,041 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 253 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:40:59,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-09-12 19:40:59,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 265. [2024-09-12 19:40:59,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 181 states have (on average 1.4364640883977902) internal successors, (260), 253 states have internal predecessors, (260), 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 19:40:59,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 276 transitions. [2024-09-12 19:40:59,118 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 276 transitions. Word has length 49 [2024-09-12 19:40:59,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:40:59,118 INFO L474 AbstractCegarLoop]: Abstraction has 265 states and 276 transitions. [2024-09-12 19:40:59,118 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 19:40:59,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:40:59,119 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 276 transitions. [2024-09-12 19:40:59,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:40:59,120 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:40:59,120 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:40:59,120 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 19:40:59,120 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:40:59,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:40:59,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1557113381, now seen corresponding path program 1 times [2024-09-12 19:40:59,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:40:59,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853470413] [2024-09-12 19:40:59,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:40:59,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:40:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:40:59,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1175936112] [2024-09-12 19:40:59,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:40:59,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:40:59,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:40:59,143 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 19:40:59,145 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 19:40:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:40:59,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:40:59,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:40:59,373 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 19:40:59,373 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:40:59,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:40:59,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853470413] [2024-09-12 19:40:59,374 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:40:59,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175936112] [2024-09-12 19:40:59,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175936112] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:40:59,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:40:59,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:40:59,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921028997] [2024-09-12 19:40:59,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:40:59,374 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:40:59,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:40:59,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:40:59,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:40:59,375 INFO L87 Difference]: Start difference. First operand 265 states and 276 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 19:40:59,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:40:59,734 INFO L93 Difference]: Finished difference Result 274 states and 282 transitions. [2024-09-12 19:40:59,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:40:59,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 55 [2024-09-12 19:40:59,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:40:59,736 INFO L225 Difference]: With dead ends: 274 [2024-09-12 19:40:59,736 INFO L226 Difference]: Without dead ends: 232 [2024-09-12 19:40:59,736 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 51 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 19:40:59,737 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 48 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:40:59,737 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 328 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:40:59,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-09-12 19:40:59,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 230. [2024-09-12 19:40:59,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 146 states have (on average 1.5342465753424657) internal successors, (224), 218 states have internal predecessors, (224), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:40:59,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 238 transitions. [2024-09-12 19:40:59,758 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 238 transitions. Word has length 55 [2024-09-12 19:40:59,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:40:59,760 INFO L474 AbstractCegarLoop]: Abstraction has 230 states and 238 transitions. [2024-09-12 19:40:59,760 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 19:40:59,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:40:59,760 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 238 transitions. [2024-09-12 19:40:59,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 19:40:59,761 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:40:59,761 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, 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 19:40:59,774 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-12 19:40:59,965 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:40:59,966 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:40:59,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:40:59,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1982018601, now seen corresponding path program 1 times [2024-09-12 19:40:59,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:40:59,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041478851] [2024-09-12 19:40:59,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:40:59,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:40:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:00,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:00,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:00,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:00,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:41:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:00,020 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 19:41:00,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:00,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041478851] [2024-09-12 19:41:00,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041478851] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:00,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:00,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:41:00,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832235381] [2024-09-12 19:41:00,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:00,023 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:41:00,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:00,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:41:00,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:41:00,024 INFO L87 Difference]: Start difference. First operand 230 states and 238 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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 19:41:00,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:00,068 INFO L93 Difference]: Finished difference Result 232 states and 238 transitions. [2024-09-12 19:41:00,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:41:00,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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 58 [2024-09-12 19:41:00,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:00,070 INFO L225 Difference]: With dead ends: 232 [2024-09-12 19:41:00,070 INFO L226 Difference]: Without dead ends: 230 [2024-09-12 19:41:00,070 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 19:41:00,070 INFO L434 NwaCegarLoop]: 177 mSDtfsCounter, 1 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:00,071 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 349 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:41:00,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-09-12 19:41:00,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2024-09-12 19:41:00,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 146 states have (on average 1.5205479452054795) internal successors, (222), 218 states have internal predecessors, (222), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:41:00,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 236 transitions. [2024-09-12 19:41:00,091 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 236 transitions. Word has length 58 [2024-09-12 19:41:00,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:00,093 INFO L474 AbstractCegarLoop]: Abstraction has 230 states and 236 transitions. [2024-09-12 19:41:00,093 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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 19:41:00,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:00,093 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 236 transitions. [2024-09-12 19:41:00,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 19:41:00,096 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:00,096 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, 1, 1, 1, 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 19:41:00,096 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 19:41:00,096 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:00,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:00,096 INFO L85 PathProgramCache]: Analyzing trace with hash -247093952, now seen corresponding path program 1 times [2024-09-12 19:41:00,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:00,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901830323] [2024-09-12 19:41:00,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:00,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:00,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [840951782] [2024-09-12 19:41:00,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:00,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:00,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:00,117 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 19:41:00,122 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 19:41:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:00,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:41:00,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:00,303 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 19:41:00,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:41:00,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:00,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901830323] [2024-09-12 19:41:00,307 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:00,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840951782] [2024-09-12 19:41:00,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840951782] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:00,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:00,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:41:00,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386114782] [2024-09-12 19:41:00,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:00,308 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:41:00,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:00,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:41:00,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:00,309 INFO L87 Difference]: Start difference. First operand 230 states and 236 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 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 19:41:00,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:00,641 INFO L93 Difference]: Finished difference Result 370 states and 387 transitions. [2024-09-12 19:41:00,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:41:00,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 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 63 [2024-09-12 19:41:00,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:00,642 INFO L225 Difference]: With dead ends: 370 [2024-09-12 19:41:00,642 INFO L226 Difference]: Without dead ends: 318 [2024-09-12 19:41:00,643 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:00,643 INFO L434 NwaCegarLoop]: 99 mSDtfsCounter, 91 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:00,643 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 168 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:41:00,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-09-12 19:41:00,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 311. [2024-09-12 19:41:00,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 225 states have (on average 1.4044444444444444) internal successors, (316), 297 states have internal predecessors, (316), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:41:00,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 334 transitions. [2024-09-12 19:41:00,662 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 334 transitions. Word has length 63 [2024-09-12 19:41:00,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:00,663 INFO L474 AbstractCegarLoop]: Abstraction has 311 states and 334 transitions. [2024-09-12 19:41:00,663 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 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 19:41:00,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:00,663 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 334 transitions. [2024-09-12 19:41:00,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-09-12 19:41:00,664 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:00,664 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:41:00,679 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 19:41:00,864 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:00,865 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:00,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:00,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1014359322, now seen corresponding path program 1 times [2024-09-12 19:41:00,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:00,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650317129] [2024-09-12 19:41:00,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:00,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:00,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:00,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:00,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:00,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:41:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:00,956 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 19:41:00,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:00,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650317129] [2024-09-12 19:41:00,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650317129] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:00,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:00,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:41:00,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793111267] [2024-09-12 19:41:00,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:00,957 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:41:00,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:00,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:41:00,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:00,958 INFO L87 Difference]: Start difference. First operand 311 states and 334 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 19:41:01,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:01,085 INFO L93 Difference]: Finished difference Result 312 states and 334 transitions. [2024-09-12 19:41:01,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:41:01,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 69 [2024-09-12 19:41:01,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:01,090 INFO L225 Difference]: With dead ends: 312 [2024-09-12 19:41:01,090 INFO L226 Difference]: Without dead ends: 311 [2024-09-12 19:41:01,090 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 19:41:01,090 INFO L434 NwaCegarLoop]: 142 mSDtfsCounter, 39 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:01,091 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 292 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:41:01,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-09-12 19:41:01,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2024-09-12 19:41:01,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 225 states have (on average 1.4) internal successors, (315), 297 states have internal predecessors, (315), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:41:01,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 333 transitions. [2024-09-12 19:41:01,126 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 333 transitions. Word has length 69 [2024-09-12 19:41:01,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:01,126 INFO L474 AbstractCegarLoop]: Abstraction has 311 states and 333 transitions. [2024-09-12 19:41:01,126 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 19:41:01,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:01,127 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 333 transitions. [2024-09-12 19:41:01,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 19:41:01,130 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:01,130 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:01,130 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 19:41:01,130 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:01,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:01,130 INFO L85 PathProgramCache]: Analyzing trace with hash 967785380, now seen corresponding path program 1 times [2024-09-12 19:41:01,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:01,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556894498] [2024-09-12 19:41:01,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:01,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:01,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1843325734] [2024-09-12 19:41:01,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:01,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:01,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:01,152 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 19:41:01,153 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 19:41:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:01,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:41:01,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:01,296 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-09-12 19:41:01,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:41:01,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:01,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556894498] [2024-09-12 19:41:01,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:01,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843325734] [2024-09-12 19:41:01,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843325734] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:01,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:01,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:41:01,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282286638] [2024-09-12 19:41:01,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:01,298 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:41:01,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:01,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:41:01,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:41:01,299 INFO L87 Difference]: Start difference. First operand 311 states and 333 transitions. Second operand has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 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 19:41:01,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:01,358 INFO L93 Difference]: Finished difference Result 311 states and 333 transitions. [2024-09-12 19:41:01,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:41:01,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 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 99 [2024-09-12 19:41:01,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:01,360 INFO L225 Difference]: With dead ends: 311 [2024-09-12 19:41:01,361 INFO L226 Difference]: Without dead ends: 308 [2024-09-12 19:41:01,361 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 96 SyntacticMatches, 1 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 19:41:01,362 INFO L434 NwaCegarLoop]: 152 mSDtfsCounter, 96 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:01,362 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 170 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:41:01,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-09-12 19:41:01,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2024-09-12 19:41:01,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 225 states have (on average 1.3777777777777778) internal successors, (310), 294 states have internal predecessors, (310), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:41:01,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 328 transitions. [2024-09-12 19:41:01,386 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 328 transitions. Word has length 99 [2024-09-12 19:41:01,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:01,387 INFO L474 AbstractCegarLoop]: Abstraction has 308 states and 328 transitions. [2024-09-12 19:41:01,387 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 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 19:41:01,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:01,403 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 328 transitions. [2024-09-12 19:41:01,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-09-12 19:41:01,405 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:01,405 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:01,416 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 19:41:01,605 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 19:41:01,606 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:01,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:01,606 INFO L85 PathProgramCache]: Analyzing trace with hash -63424177, now seen corresponding path program 1 times [2024-09-12 19:41:01,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:01,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724295500] [2024-09-12 19:41:01,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:01,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:01,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [758056051] [2024-09-12 19:41:01,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:01,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:01,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:01,625 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 19:41:01,625 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 19:41:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:01,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:41:01,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:01,879 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:01,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:41:02,055 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:02,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:02,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724295500] [2024-09-12 19:41:02,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:02,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758056051] [2024-09-12 19:41:02,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758056051] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:41:02,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:41:02,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:41:02,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411729992] [2024-09-12 19:41:02,057 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:41:02,057 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:41:02,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:02,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:41:02,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:41:02,058 INFO L87 Difference]: Start difference. First operand 308 states and 328 transitions. Second operand has 8 states, 7 states have (on average 24.0) internal successors, (168), 8 states have internal predecessors, (168), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:41:02,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:02,747 INFO L93 Difference]: Finished difference Result 381 states and 397 transitions. [2024-09-12 19:41:02,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:41:02,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 24.0) internal successors, (168), 8 states have internal predecessors, (168), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 100 [2024-09-12 19:41:02,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:02,749 INFO L225 Difference]: With dead ends: 381 [2024-09-12 19:41:02,749 INFO L226 Difference]: Without dead ends: 374 [2024-09-12 19:41:02,749 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:41:02,750 INFO L434 NwaCegarLoop]: 89 mSDtfsCounter, 294 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:02,750 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 362 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:41:02,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-09-12 19:41:02,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 346. [2024-09-12 19:41:02,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 264 states have (on average 1.3977272727272727) internal successors, (369), 332 states have internal predecessors, (369), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:41:02,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 387 transitions. [2024-09-12 19:41:02,783 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 387 transitions. Word has length 100 [2024-09-12 19:41:02,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:02,784 INFO L474 AbstractCegarLoop]: Abstraction has 346 states and 387 transitions. [2024-09-12 19:41:02,784 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 24.0) internal successors, (168), 8 states have internal predecessors, (168), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:41:02,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:02,784 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 387 transitions. [2024-09-12 19:41:02,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 19:41:02,785 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:02,785 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:02,800 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 19:41:02,989 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:02,990 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:02,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:02,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1966149370, now seen corresponding path program 1 times [2024-09-12 19:41:02,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:02,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346708114] [2024-09-12 19:41:02,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:02,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:03,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [609961434] [2024-09-12 19:41:03,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:03,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:03,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:03,025 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 19:41:03,026 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 19:41:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:03,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:41:03,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:03,290 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:03,290 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:41:06,163 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:06,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:06,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346708114] [2024-09-12 19:41:06,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:06,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609961434] [2024-09-12 19:41:06,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609961434] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:41:06,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:41:06,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2024-09-12 19:41:06,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911556347] [2024-09-12 19:41:06,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:06,164 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:41:06,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:06,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:41:06,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:41:06,165 INFO L87 Difference]: Start difference. First operand 346 states and 387 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 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 19:41:10,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:12,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:15,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:17,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:20,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:24,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:29,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:31,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:35,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:40,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:42,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:46,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:50,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:50,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:50,897 INFO L93 Difference]: Finished difference Result 346 states and 387 transitions. [2024-09-12 19:41:50,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:41:50,897 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 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 101 [2024-09-12 19:41:50,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:50,900 INFO L225 Difference]: With dead ends: 346 [2024-09-12 19:41:50,901 INFO L226 Difference]: Without dead ends: 344 [2024-09-12 19:41:50,901 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:41:50,901 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 197 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 10 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:50,901 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 91 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 420 Invalid, 7 Unknown, 0 Unchecked, 44.6s Time] [2024-09-12 19:41:50,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-09-12 19:41:50,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-09-12 19:41:50,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 264 states have (on average 1.3825757575757576) internal successors, (365), 330 states have internal predecessors, (365), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:41:50,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 383 transitions. [2024-09-12 19:41:50,963 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 383 transitions. Word has length 101 [2024-09-12 19:41:50,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:50,964 INFO L474 AbstractCegarLoop]: Abstraction has 344 states and 383 transitions. [2024-09-12 19:41:50,964 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 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 19:41:50,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:50,965 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 383 transitions. [2024-09-12 19:41:50,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-09-12 19:41:50,966 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:50,966 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:50,993 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 19:41:51,166 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 19:41:51,167 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:51,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:51,168 INFO L85 PathProgramCache]: Analyzing trace with hash -821088207, now seen corresponding path program 1 times [2024-09-12 19:41:51,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:51,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110911163] [2024-09-12 19:41:51,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:51,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:51,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1443397576] [2024-09-12 19:41:51,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:51,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:51,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:51,202 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 19:41:51,202 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 19:41:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:51,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:41:51,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:51,359 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:51,360 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:41:51,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:51,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110911163] [2024-09-12 19:41:51,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:51,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443397576] [2024-09-12 19:41:51,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443397576] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:51,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:51,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:41:51,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091038922] [2024-09-12 19:41:51,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:51,361 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:41:51,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:51,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:41:51,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:41:51,361 INFO L87 Difference]: Start difference. First operand 344 states and 383 transitions. Second operand has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 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 19:41:51,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:51,826 INFO L93 Difference]: Finished difference Result 344 states and 383 transitions. [2024-09-12 19:41:51,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:41:51,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 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 102 [2024-09-12 19:41:51,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:51,828 INFO L225 Difference]: With dead ends: 344 [2024-09-12 19:41:51,828 INFO L226 Difference]: Without dead ends: 324 [2024-09-12 19:41:51,829 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:41:51,829 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 115 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:51,829 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 94 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:41:51,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-09-12 19:41:51,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2024-09-12 19:41:51,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 264 states have (on average 1.268939393939394) internal successors, (335), 310 states have internal predecessors, (335), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:41:51,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 353 transitions. [2024-09-12 19:41:51,910 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 353 transitions. Word has length 102 [2024-09-12 19:41:51,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:51,910 INFO L474 AbstractCegarLoop]: Abstraction has 324 states and 353 transitions. [2024-09-12 19:41:51,911 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 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 19:41:51,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:51,911 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 353 transitions. [2024-09-12 19:41:51,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 19:41:51,912 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:51,912 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:51,923 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 19:41:52,115 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 19:41:52,116 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:52,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:52,116 INFO L85 PathProgramCache]: Analyzing trace with hash 316069480, now seen corresponding path program 1 times [2024-09-12 19:41:52,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:52,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012714526] [2024-09-12 19:41:52,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:52,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:52,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1167081786] [2024-09-12 19:41:52,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:52,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:52,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:52,135 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 19:41:52,136 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 19:41:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:52,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:41:52,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:52,366 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:52,367 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:41:52,543 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-09-12 19:41:52,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:52,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012714526] [2024-09-12 19:41:52,544 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:52,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167081786] [2024-09-12 19:41:52,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167081786] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:41:52,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:41:52,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-09-12 19:41:52,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855885652] [2024-09-12 19:41:52,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:52,545 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:41:52,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:52,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:41:52,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:41:52,546 INFO L87 Difference]: Start difference. First operand 324 states and 353 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 19:41:55,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:55,451 INFO L93 Difference]: Finished difference Result 324 states and 353 transitions. [2024-09-12 19:41:55,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:41:55,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 103 [2024-09-12 19:41:55,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:55,453 INFO L225 Difference]: With dead ends: 324 [2024-09-12 19:41:55,453 INFO L226 Difference]: Without dead ends: 322 [2024-09-12 19:41:55,453 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:41:55,454 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 80 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:55,454 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 72 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-09-12 19:41:55,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-09-12 19:41:55,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2024-09-12 19:41:55,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 264 states have (on average 1.253787878787879) internal successors, (331), 308 states have internal predecessors, (331), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:41:55,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 349 transitions. [2024-09-12 19:41:55,553 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 349 transitions. Word has length 103 [2024-09-12 19:41:55,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:55,553 INFO L474 AbstractCegarLoop]: Abstraction has 322 states and 349 transitions. [2024-09-12 19:41:55,553 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 19:41:55,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:55,554 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 349 transitions. [2024-09-12 19:41:55,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 19:41:55,554 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:55,554 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:55,568 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 19:41:55,755 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:55,755 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:55,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:55,755 INFO L85 PathProgramCache]: Analyzing trace with hash 682896451, now seen corresponding path program 1 times [2024-09-12 19:41:55,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:55,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246127906] [2024-09-12 19:41:55,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:55,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:55,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [506572788] [2024-09-12 19:41:55,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:55,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:55,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:55,768 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 19:41:55,769 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 19:41:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:55,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:41:55,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:56,015 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:56,015 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:41:56,222 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 19:41:56,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:56,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246127906] [2024-09-12 19:41:56,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:56,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506572788] [2024-09-12 19:41:56,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506572788] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:41:56,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:41:56,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 19:41:56,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106818955] [2024-09-12 19:41:56,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:56,223 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:41:56,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:56,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:41:56,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:41:56,223 INFO L87 Difference]: Start difference. First operand 322 states and 349 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 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 19:41:57,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:57,448 INFO L93 Difference]: Finished difference Result 328 states and 354 transitions. [2024-09-12 19:41:57,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:41:57,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 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 108 [2024-09-12 19:41:57,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:57,456 INFO L225 Difference]: With dead ends: 328 [2024-09-12 19:41:57,456 INFO L226 Difference]: Without dead ends: 324 [2024-09-12 19:41:57,457 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:41:57,457 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 83 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:57,458 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 111 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 19:41:57,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-09-12 19:41:57,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2024-09-12 19:41:57,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 266 states have (on average 1.2481203007518797) internal successors, (332), 309 states have internal predecessors, (332), 10 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:41:57,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 350 transitions. [2024-09-12 19:41:57,624 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 350 transitions. Word has length 108 [2024-09-12 19:41:57,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:57,626 INFO L474 AbstractCegarLoop]: Abstraction has 324 states and 350 transitions. [2024-09-12 19:41:57,626 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 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 19:41:57,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:57,626 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 350 transitions. [2024-09-12 19:41:57,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-09-12 19:41:57,627 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:57,627 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:57,641 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 19:41:57,828 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:57,828 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:57,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:57,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1086921535, now seen corresponding path program 1 times [2024-09-12 19:41:57,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:57,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567518685] [2024-09-12 19:41:57,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:57,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:57,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:57,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:57,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:57,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:41:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:57,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:41:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:57,921 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:41:57,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:57,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567518685] [2024-09-12 19:41:57,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567518685] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:41:57,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708970228] [2024-09-12 19:41:57,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:57,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:57,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:57,925 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 19:41:57,929 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 19:41:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:57,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:41:57,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:58,049 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:41:58,049 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:41:58,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708970228] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:58,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:41:58,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 19:41:58,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143583820] [2024-09-12 19:41:58,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:58,050 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:41:58,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:58,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:41:58,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:41:58,051 INFO L87 Difference]: Start difference. First operand 324 states and 350 transitions. Second operand has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:41:58,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:58,177 INFO L93 Difference]: Finished difference Result 324 states and 350 transitions. [2024-09-12 19:41:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:41:58,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 111 [2024-09-12 19:41:58,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:58,179 INFO L225 Difference]: With dead ends: 324 [2024-09-12 19:41:58,179 INFO L226 Difference]: Without dead ends: 323 [2024-09-12 19:41:58,180 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 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 19:41:58,180 INFO L434 NwaCegarLoop]: 183 mSDtfsCounter, 49 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:58,180 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 293 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:41:58,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-09-12 19:41:58,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-09-12 19:41:58,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 266 states have (on average 1.2406015037593985) internal successors, (330), 308 states have internal predecessors, (330), 10 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:41:58,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 348 transitions. [2024-09-12 19:41:58,288 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 348 transitions. Word has length 111 [2024-09-12 19:41:58,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:58,288 INFO L474 AbstractCegarLoop]: Abstraction has 323 states and 348 transitions. [2024-09-12 19:41:58,288 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:41:58,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:58,288 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 348 transitions. [2024-09-12 19:41:58,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-09-12 19:41:58,289 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:58,289 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:58,305 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 19:41:58,490 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:41:58,490 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:58,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:58,491 INFO L85 PathProgramCache]: Analyzing trace with hash 665170916, now seen corresponding path program 1 times [2024-09-12 19:41:58,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:58,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183956935] [2024-09-12 19:41:58,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:58,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:58,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:58,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:58,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:58,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:41:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:58,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:41:58,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:58,573 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:41:58,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:58,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183956935] [2024-09-12 19:41:58,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183956935] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:41:58,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003083340] [2024-09-12 19:41:58,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:58,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:58,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:58,579 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 19:41:58,580 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 19:41:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:58,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:41:58,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:41:58,698 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:41:58,790 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:41:58,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003083340] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:41:58,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:41:58,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 19:41:58,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355257891] [2024-09-12 19:41:58,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:41:58,791 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:41:58,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:58,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:41:58,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:41:58,792 INFO L87 Difference]: Start difference. First operand 323 states and 348 transitions. Second operand has 7 states, 6 states have (on average 36.833333333333336) internal successors, (221), 7 states have internal predecessors, (221), 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 19:41:58,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:58,958 INFO L93 Difference]: Finished difference Result 422 states and 435 transitions. [2024-09-12 19:41:58,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:41:58,958 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 36.833333333333336) internal successors, (221), 7 states have internal predecessors, (221), 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 112 [2024-09-12 19:41:58,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:58,960 INFO L225 Difference]: With dead ends: 422 [2024-09-12 19:41:58,960 INFO L226 Difference]: Without dead ends: 421 [2024-09-12 19:41:58,960 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:41:58,960 INFO L434 NwaCegarLoop]: 147 mSDtfsCounter, 51 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:58,960 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 639 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:41:58,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-09-12 19:41:59,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 380. [2024-09-12 19:41:59,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 321 states have (on average 1.277258566978193) internal successors, (410), 363 states have internal predecessors, (410), 12 states have call successors, (12), 6 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 19:41:59,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 432 transitions. [2024-09-12 19:41:59,094 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 432 transitions. Word has length 112 [2024-09-12 19:41:59,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:59,095 INFO L474 AbstractCegarLoop]: Abstraction has 380 states and 432 transitions. [2024-09-12 19:41:59,095 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 36.833333333333336) internal successors, (221), 7 states have internal predecessors, (221), 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 19:41:59,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:59,095 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 432 transitions. [2024-09-12 19:41:59,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-09-12 19:41:59,096 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:59,096 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:41:59,107 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 19:41:59,299 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 19:41:59,300 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:59,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:59,300 INFO L85 PathProgramCache]: Analyzing trace with hash -309786960, now seen corresponding path program 1 times [2024-09-12 19:41:59,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:59,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732061089] [2024-09-12 19:41:59,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:59,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:59,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:59,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:59,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:59,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:41:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:59,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:41:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:59,356 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-09-12 19:41:59,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:59,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732061089] [2024-09-12 19:41:59,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732061089] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:59,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:59,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:41:59,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447714552] [2024-09-12 19:41:59,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:59,357 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:41:59,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:59,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:41:59,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:59,358 INFO L87 Difference]: Start difference. First operand 380 states and 432 transitions. Second operand has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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 19:41:59,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:59,693 INFO L93 Difference]: Finished difference Result 380 states and 432 transitions. [2024-09-12 19:41:59,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:41:59,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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 124 [2024-09-12 19:41:59,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:59,695 INFO L225 Difference]: With dead ends: 380 [2024-09-12 19:41:59,696 INFO L226 Difference]: Without dead ends: 373 [2024-09-12 19:41:59,696 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 19:41:59,696 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 79 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:59,696 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 69 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:41:59,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-09-12 19:41:59,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2024-09-12 19:41:59,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 321 states have (on average 1.233644859813084) internal successors, (396), 356 states have internal predecessors, (396), 12 states have call successors, (12), 6 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 19:41:59,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 418 transitions. [2024-09-12 19:41:59,828 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 418 transitions. Word has length 124 [2024-09-12 19:41:59,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:59,828 INFO L474 AbstractCegarLoop]: Abstraction has 373 states and 418 transitions. [2024-09-12 19:41:59,828 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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 19:41:59,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:59,828 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 418 transitions. [2024-09-12 19:41:59,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-09-12 19:41:59,829 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:59,829 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:59,829 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 19:41:59,829 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:59,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:59,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1013461109, now seen corresponding path program 1 times [2024-09-12 19:41:59,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:59,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497426680] [2024-09-12 19:41:59,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:59,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:59,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:59,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:59,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:59,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:41:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:59,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:41:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:59,874 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-12 19:41:59,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:59,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497426680] [2024-09-12 19:41:59,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497426680] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:59,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:59,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:41:59,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042119143] [2024-09-12 19:41:59,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:59,875 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:41:59,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:59,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:41:59,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:59,876 INFO L87 Difference]: Start difference. First operand 373 states and 418 transitions. Second operand has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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 19:42:00,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:00,122 INFO L93 Difference]: Finished difference Result 373 states and 418 transitions. [2024-09-12 19:42:00,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:42:00,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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 125 [2024-09-12 19:42:00,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:00,124 INFO L225 Difference]: With dead ends: 373 [2024-09-12 19:42:00,124 INFO L226 Difference]: Without dead ends: 372 [2024-09-12 19:42:00,125 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 19:42:00,125 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 110 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:00,125 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 51 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:42:00,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-09-12 19:42:00,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2024-09-12 19:42:00,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 321 states have (on average 1.2242990654205608) internal successors, (393), 355 states have internal predecessors, (393), 12 states have call successors, (12), 6 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 19:42:00,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 415 transitions. [2024-09-12 19:42:00,287 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 415 transitions. Word has length 125 [2024-09-12 19:42:00,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:00,287 INFO L474 AbstractCegarLoop]: Abstraction has 372 states and 415 transitions. [2024-09-12 19:42:00,288 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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 19:42:00,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:00,288 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 415 transitions. [2024-09-12 19:42:00,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-09-12 19:42:00,288 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:00,288 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:00,289 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 19:42:00,289 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:00,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:00,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1021452397, now seen corresponding path program 1 times [2024-09-12 19:42:00,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:00,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856908855] [2024-09-12 19:42:00,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:00,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:00,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [569219069] [2024-09-12 19:42:00,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:00,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:00,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:00,312 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 19:42:00,313 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 19:42:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:00,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:42:00,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:00,447 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:42:00,447 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:00,611 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:42:00,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:00,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856908855] [2024-09-12 19:42:00,611 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:00,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569219069] [2024-09-12 19:42:00,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569219069] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:00,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:42:00,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:42:00,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660183645] [2024-09-12 19:42:00,612 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:00,613 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:42:00,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:00,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:42:00,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:42:00,614 INFO L87 Difference]: Start difference. First operand 372 states and 415 transitions. Second operand has 8 states, 7 states have (on average 30.285714285714285) internal successors, (212), 8 states have internal predecessors, (212), 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 19:42:01,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:01,208 INFO L93 Difference]: Finished difference Result 435 states and 471 transitions. [2024-09-12 19:42:01,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:42:01,209 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 30.285714285714285) internal successors, (212), 8 states have internal predecessors, (212), 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 127 [2024-09-12 19:42:01,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:01,211 INFO L225 Difference]: With dead ends: 435 [2024-09-12 19:42:01,211 INFO L226 Difference]: Without dead ends: 409 [2024-09-12 19:42:01,212 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:42:01,213 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 431 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:01,213 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 197 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:42:01,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-09-12 19:42:01,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 356. [2024-09-12 19:42:01,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 310 states have (on average 1.164516129032258) internal successors, (361), 340 states have internal predecessors, (361), 11 states have call successors, (11), 6 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 19:42:01,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 381 transitions. [2024-09-12 19:42:01,356 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 381 transitions. Word has length 127 [2024-09-12 19:42:01,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:01,357 INFO L474 AbstractCegarLoop]: Abstraction has 356 states and 381 transitions. [2024-09-12 19:42:01,357 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 30.285714285714285) internal successors, (212), 8 states have internal predecessors, (212), 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 19:42:01,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:01,358 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 381 transitions. [2024-09-12 19:42:01,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-09-12 19:42:01,358 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:01,358 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:01,370 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 19:42:01,559 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:01,560 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:01,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:01,560 INFO L85 PathProgramCache]: Analyzing trace with hash 720956271, now seen corresponding path program 1 times [2024-09-12 19:42:01,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:01,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297044244] [2024-09-12 19:42:01,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:01,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:01,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [322381457] [2024-09-12 19:42:01,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:01,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:01,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:01,582 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 19:42:01,584 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 19:42:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:01,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:42:01,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:01,874 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:01,874 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:03,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:03,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297044244] [2024-09-12 19:42:03,228 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:03,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322381457] [2024-09-12 19:42:03,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322381457] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:03,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:42:03,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:42:03,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871996115] [2024-09-12 19:42:03,228 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:03,229 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:42:03,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:03,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:42:03,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:42:03,230 INFO L87 Difference]: Start difference. First operand 356 states and 381 transitions. Second operand has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 7 states have internal predecessors, (128), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:42:03,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:03,651 INFO L93 Difference]: Finished difference Result 397 states and 424 transitions. [2024-09-12 19:42:03,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:42:03,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 7 states have internal predecessors, (128), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 150 [2024-09-12 19:42:03,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:03,653 INFO L225 Difference]: With dead ends: 397 [2024-09-12 19:42:03,653 INFO L226 Difference]: Without dead ends: 396 [2024-09-12 19:42:03,654 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:42:03,654 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 25 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:03,654 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 368 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:42:03,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-09-12 19:42:03,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 392. [2024-09-12 19:42:03,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 345 states have (on average 1.1478260869565218) internal successors, (396), 375 states have internal predecessors, (396), 12 states have call successors, (12), 6 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 19:42:03,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 418 transitions. [2024-09-12 19:42:03,813 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 418 transitions. Word has length 150 [2024-09-12 19:42:03,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:03,814 INFO L474 AbstractCegarLoop]: Abstraction has 392 states and 418 transitions. [2024-09-12 19:42:03,814 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 7 states have internal predecessors, (128), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:42:03,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:03,814 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 418 transitions. [2024-09-12 19:42:03,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-09-12 19:42:03,815 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:03,815 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:03,830 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 19:42:04,015 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 19:42:04,016 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr81ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:04,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:04,016 INFO L85 PathProgramCache]: Analyzing trace with hash 874808150, now seen corresponding path program 1 times [2024-09-12 19:42:04,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:04,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878197066] [2024-09-12 19:42:04,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:04,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:04,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1001334449] [2024-09-12 19:42:04,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:04,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:04,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:04,033 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 19:42:04,034 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 19:42:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:04,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:42:04,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:04,355 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:04,355 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:06,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:06,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878197066] [2024-09-12 19:42:06,539 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:06,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001334449] [2024-09-12 19:42:06,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001334449] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:06,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:42:06,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:42:06,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803702891] [2024-09-12 19:42:06,539 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:06,540 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:42:06,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:06,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:42:06,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:42:06,540 INFO L87 Difference]: Start difference. First operand 392 states and 418 transitions. Second operand has 7 states, 6 states have (on average 21.5) internal successors, (129), 7 states have internal predecessors, (129), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:42:06,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:06,988 INFO L93 Difference]: Finished difference Result 397 states and 423 transitions. [2024-09-12 19:42:06,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:42:06,989 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.5) internal successors, (129), 7 states have internal predecessors, (129), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 151 [2024-09-12 19:42:06,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:06,991 INFO L225 Difference]: With dead ends: 397 [2024-09-12 19:42:06,991 INFO L226 Difference]: Without dead ends: 396 [2024-09-12 19:42:06,991 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:42:06,992 INFO L434 NwaCegarLoop]: 98 mSDtfsCounter, 25 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:06,992 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 287 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:42:06,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-09-12 19:42:07,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 393. [2024-09-12 19:42:07,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 346 states have (on average 1.1473988439306357) internal successors, (397), 376 states have internal predecessors, (397), 12 states have call successors, (12), 6 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 19:42:07,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 419 transitions. [2024-09-12 19:42:07,152 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 419 transitions. Word has length 151 [2024-09-12 19:42:07,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:07,152 INFO L474 AbstractCegarLoop]: Abstraction has 393 states and 419 transitions. [2024-09-12 19:42:07,152 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.5) internal successors, (129), 7 states have internal predecessors, (129), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:42:07,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:07,153 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 419 transitions. [2024-09-12 19:42:07,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-09-12 19:42:07,156 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:07,156 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:42:07,175 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 19:42:07,360 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:07,361 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:07,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:07,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1236611356, now seen corresponding path program 1 times [2024-09-12 19:42:07,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:07,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265664018] [2024-09-12 19:42:07,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:07,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:07,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1300005471] [2024-09-12 19:42:07,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:07,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:07,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:07,388 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 19:42:07,392 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 19:42:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:07,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:42:07,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:07,807 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 6 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:07,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:08,151 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 6 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:08,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:08,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265664018] [2024-09-12 19:42:08,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:08,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300005471] [2024-09-12 19:42:08,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300005471] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:08,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:42:08,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2024-09-12 19:42:08,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274681753] [2024-09-12 19:42:08,152 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:08,153 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:42:08,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:08,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:42:08,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:42:08,154 INFO L87 Difference]: Start difference. First operand 393 states and 419 transitions. Second operand has 14 states, 14 states have (on average 18.357142857142858) internal successors, (257), 13 states have internal predecessors, (257), 7 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:42:09,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:09,023 INFO L93 Difference]: Finished difference Result 400 states and 425 transitions. [2024-09-12 19:42:09,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:42:09,023 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.357142857142858) internal successors, (257), 13 states have internal predecessors, (257), 7 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 157 [2024-09-12 19:42:09,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:09,025 INFO L225 Difference]: With dead ends: 400 [2024-09-12 19:42:09,025 INFO L226 Difference]: Without dead ends: 356 [2024-09-12 19:42:09,026 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 299 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:42:09,026 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 8 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:09,026 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 305 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:42:09,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-09-12 19:42:09,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2024-09-12 19:42:09,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 310 states have (on average 1.1612903225806452) internal successors, (360), 340 states have internal predecessors, (360), 11 states have call successors, (11), 6 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 19:42:09,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 380 transitions. [2024-09-12 19:42:09,173 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 380 transitions. Word has length 157 [2024-09-12 19:42:09,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:09,174 INFO L474 AbstractCegarLoop]: Abstraction has 356 states and 380 transitions. [2024-09-12 19:42:09,174 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.357142857142858) internal successors, (257), 13 states have internal predecessors, (257), 7 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:42:09,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:09,174 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 380 transitions. [2024-09-12 19:42:09,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-09-12 19:42:09,175 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:09,175 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:09,189 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 19:42:09,379 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 19:42:09,380 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:09,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:09,381 INFO L85 PathProgramCache]: Analyzing trace with hash 886108751, now seen corresponding path program 1 times [2024-09-12 19:42:09,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:09,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746521849] [2024-09-12 19:42:09,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:09,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:09,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:42:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:09,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:42:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:09,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:42:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:09,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:42:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:09,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:42:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:09,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 19:42:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:09,629 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 61 proven. 79 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 19:42:09,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:09,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746521849] [2024-09-12 19:42:09,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746521849] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:09,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294023246] [2024-09-12 19:42:09,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:09,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:09,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:09,631 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 19:42:09,631 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 19:42:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:09,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:42:09,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:10,151 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 137 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 19:42:10,151 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:10,453 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 137 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 19:42:10,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294023246] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:10,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:42:10,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-09-12 19:42:10,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326847699] [2024-09-12 19:42:10,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:10,454 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:42:10,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:10,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:42:10,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:42:10,455 INFO L87 Difference]: Start difference. First operand 356 states and 380 transitions. Second operand has 16 states, 16 states have (on average 26.1875) internal successors, (419), 14 states have internal predecessors, (419), 12 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2024-09-12 19:42:10,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:10,635 INFO L93 Difference]: Finished difference Result 381 states and 404 transitions. [2024-09-12 19:42:10,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:42:10,636 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 26.1875) internal successors, (419), 14 states have internal predecessors, (419), 12 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) Word has length 170 [2024-09-12 19:42:10,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:10,637 INFO L225 Difference]: With dead ends: 381 [2024-09-12 19:42:10,637 INFO L226 Difference]: Without dead ends: 203 [2024-09-12 19:42:10,638 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:42:10,641 INFO L434 NwaCegarLoop]: 184 mSDtfsCounter, 40 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:10,641 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 1226 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:42:10,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-09-12 19:42:10,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 201. [2024-09-12 19:42:10,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 185 states have (on average 1.0108108108108107) internal successors, (187), 187 states have internal predecessors, (187), 9 states have call successors, (9), 6 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 19:42:10,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 203 transitions. [2024-09-12 19:42:10,730 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 203 transitions. Word has length 170 [2024-09-12 19:42:10,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:10,730 INFO L474 AbstractCegarLoop]: Abstraction has 201 states and 203 transitions. [2024-09-12 19:42:10,731 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 26.1875) internal successors, (419), 14 states have internal predecessors, (419), 12 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2024-09-12 19:42:10,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:10,731 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 203 transitions. [2024-09-12 19:42:10,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-09-12 19:42:10,732 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:10,732 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:42:10,744 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 19:42:10,932 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 19:42:10,933 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:10,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:10,933 INFO L85 PathProgramCache]: Analyzing trace with hash -18642937, now seen corresponding path program 2 times [2024-09-12 19:42:10,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:10,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316434124] [2024-09-12 19:42:10,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:10,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:10,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [305504692] [2024-09-12 19:42:10,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:42:10,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:10,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:10,953 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 19:42:10,954 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 19:42:10,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 19:42:10,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:42:10,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:42:10,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:11,552 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-09-12 19:42:11,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:42:11,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:11,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316434124] [2024-09-12 19:42:11,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:11,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305504692] [2024-09-12 19:42:11,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305504692] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:42:11,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:42:11,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:42:11,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916262135] [2024-09-12 19:42:11,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:42:11,554 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:42:11,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:11,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:42:11,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:42:11,554 INFO L87 Difference]: Start difference. First operand 201 states and 203 transitions. Second operand has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:42:11,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:11,756 INFO L93 Difference]: Finished difference Result 201 states and 203 transitions. [2024-09-12 19:42:11,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:42:11,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 203 [2024-09-12 19:42:11,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:11,757 INFO L225 Difference]: With dead ends: 201 [2024-09-12 19:42:11,757 INFO L226 Difference]: Without dead ends: 199 [2024-09-12 19:42:11,758 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:42:11,758 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 44 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:11,758 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 70 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:42:11,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-09-12 19:42:11,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2024-09-12 19:42:11,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 185 states have (on average 1.0) internal successors, (185), 185 states have internal predecessors, (185), 9 states have call successors, (9), 6 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 19:42:11,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 201 transitions. [2024-09-12 19:42:11,858 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 201 transitions. Word has length 203 [2024-09-12 19:42:11,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:11,858 INFO L474 AbstractCegarLoop]: Abstraction has 199 states and 201 transitions. [2024-09-12 19:42:11,859 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 29.5) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:42:11,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:11,859 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 201 transitions. [2024-09-12 19:42:11,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-09-12 19:42:11,861 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:11,861 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:42:11,876 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 19:42:12,061 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:12,062 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:12,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:12,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1814779724, now seen corresponding path program 2 times [2024-09-12 19:42:12,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:12,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564037138] [2024-09-12 19:42:12,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:12,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:12,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1012176598] [2024-09-12 19:42:12,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:42:12,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:12,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:12,098 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 19:42:12,110 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 19:42:12,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:42:12,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:42:12,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 19:42:12,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:12,685 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 7 proven. 133 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-12 19:42:12,685 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:13,326 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 7 proven. 133 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-12 19:42:13,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:13,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564037138] [2024-09-12 19:42:13,327 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:13,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012176598] [2024-09-12 19:42:13,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012176598] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:13,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:42:13,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 24 [2024-09-12 19:42:13,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133704368] [2024-09-12 19:42:13,327 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:13,328 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 19:42:13,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:13,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 19:42:13,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:42:13,329 INFO L87 Difference]: Start difference. First operand 199 states and 201 transitions. Second operand has 24 states, 24 states have (on average 15.0) internal successors, (360), 23 states have internal predecessors, (360), 9 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-09-12 19:42:14,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:14,320 INFO L93 Difference]: Finished difference Result 199 states and 201 transitions. [2024-09-12 19:42:14,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:42:14,320 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 15.0) internal successors, (360), 23 states have internal predecessors, (360), 9 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 210 [2024-09-12 19:42:14,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:14,321 INFO L225 Difference]: With dead ends: 199 [2024-09-12 19:42:14,321 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:42:14,322 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:42:14,322 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 56 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 2409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:14,322 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 356 Invalid, 2409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 19:42:14,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:42:14,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:42:14,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 19:42:14,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:42:14,323 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 210 [2024-09-12 19:42:14,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:14,323 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:42:14,324 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 15.0) internal successors, (360), 23 states have internal predecessors, (360), 9 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-09-12 19:42:14,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:14,324 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:42:14,324 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:42:14,326 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 85 remaining) [2024-09-12 19:42:14,326 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 85 remaining) [2024-09-12 19:42:14,327 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 85 remaining) [2024-09-12 19:42:14,327 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 85 remaining) [2024-09-12 19:42:14,327 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 85 remaining) [2024-09-12 19:42:14,327 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 85 remaining) [2024-09-12 19:42:14,327 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 85 remaining) [2024-09-12 19:42:14,327 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 85 remaining) [2024-09-12 19:42:14,327 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 85 remaining) [2024-09-12 19:42:14,327 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 85 remaining) [2024-09-12 19:42:14,327 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 85 remaining) [2024-09-12 19:42:14,328 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 85 remaining) [2024-09-12 19:42:14,328 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 85 remaining) [2024-09-12 19:42:14,328 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 85 remaining) [2024-09-12 19:42:14,328 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 85 remaining) [2024-09-12 19:42:14,328 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 85 remaining) [2024-09-12 19:42:14,328 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 85 remaining) [2024-09-12 19:42:14,328 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 85 remaining) [2024-09-12 19:42:14,328 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 85 remaining) [2024-09-12 19:42:14,328 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 85 remaining) [2024-09-12 19:42:14,328 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 85 remaining) [2024-09-12 19:42:14,329 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 85 remaining) [2024-09-12 19:42:14,329 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 85 remaining) [2024-09-12 19:42:14,329 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 85 remaining) [2024-09-12 19:42:14,329 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 85 remaining) [2024-09-12 19:42:14,329 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 85 remaining) [2024-09-12 19:42:14,329 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 85 remaining) [2024-09-12 19:42:14,329 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 85 remaining) [2024-09-12 19:42:14,329 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 85 remaining) [2024-09-12 19:42:14,329 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 85 remaining) [2024-09-12 19:42:14,330 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 85 remaining) [2024-09-12 19:42:14,330 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 85 remaining) [2024-09-12 19:42:14,330 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 85 remaining) [2024-09-12 19:42:14,330 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 85 remaining) [2024-09-12 19:42:14,330 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 85 remaining) [2024-09-12 19:42:14,330 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 85 remaining) [2024-09-12 19:42:14,330 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 85 remaining) [2024-09-12 19:42:14,330 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 85 remaining) [2024-09-12 19:42:14,330 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 85 remaining) [2024-09-12 19:42:14,330 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 85 remaining) [2024-09-12 19:42:14,330 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 85 remaining) [2024-09-12 19:42:14,330 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 85 remaining) [2024-09-12 19:42:14,331 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 85 remaining) [2024-09-12 19:42:14,331 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 85 remaining) [2024-09-12 19:42:14,331 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 85 remaining) [2024-09-12 19:42:14,331 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 85 remaining) [2024-09-12 19:42:14,331 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 85 remaining) [2024-09-12 19:42:14,331 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 85 remaining) [2024-09-12 19:42:14,331 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 85 remaining) [2024-09-12 19:42:14,331 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 85 remaining) [2024-09-12 19:42:14,331 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 85 remaining) [2024-09-12 19:42:14,331 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 85 remaining) [2024-09-12 19:42:14,332 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 85 remaining) [2024-09-12 19:42:14,332 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 85 remaining) [2024-09-12 19:42:14,332 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 85 remaining) [2024-09-12 19:42:14,332 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 85 remaining) [2024-09-12 19:42:14,332 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 85 remaining) [2024-09-12 19:42:14,332 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 85 remaining) [2024-09-12 19:42:14,332 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr58ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 85 remaining) [2024-09-12 19:42:14,332 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr59ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 85 remaining) [2024-09-12 19:42:14,332 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr60ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 85 remaining) [2024-09-12 19:42:14,332 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr61ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 85 remaining) [2024-09-12 19:42:14,333 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr62ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 85 remaining) [2024-09-12 19:42:14,333 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr63ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 85 remaining) [2024-09-12 19:42:14,333 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr64ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 85 remaining) [2024-09-12 19:42:14,333 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr65ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 85 remaining) [2024-09-12 19:42:14,333 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr66ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 85 remaining) [2024-09-12 19:42:14,333 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr67ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 85 remaining) [2024-09-12 19:42:14,333 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr68ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 85 remaining) [2024-09-12 19:42:14,333 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr69ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 85 remaining) [2024-09-12 19:42:14,333 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr70ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 85 remaining) [2024-09-12 19:42:14,333 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr71ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 85 remaining) [2024-09-12 19:42:14,333 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr72ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 85 remaining) [2024-09-12 19:42:14,334 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr73ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 85 remaining) [2024-09-12 19:42:14,334 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr74ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 85 remaining) [2024-09-12 19:42:14,334 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr75ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 85 remaining) [2024-09-12 19:42:14,334 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr76ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 85 remaining) [2024-09-12 19:42:14,334 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr77ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 85 remaining) [2024-09-12 19:42:14,334 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr78ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 85 remaining) [2024-09-12 19:42:14,334 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr79ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 85 remaining) [2024-09-12 19:42:14,334 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr80ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 85 remaining) [2024-09-12 19:42:14,334 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr81ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 85 remaining) [2024-09-12 19:42:14,334 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr82ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 85 remaining) [2024-09-12 19:42:14,334 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr83ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 85 remaining) [2024-09-12 19:42:14,334 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 85 remaining) [2024-09-12 19:42:14,350 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 19:42:14,538 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:14,541 INFO L408 BasicCegarLoop]: Path program histogram: [2, 2, 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 19:42:14,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 19:42:16,915 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 19:42:16,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 07:42:16 BoogieIcfgContainer [2024-09-12 19:42:16,945 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 19:42:16,946 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 19:42:16,946 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 19:42:16,946 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 19:42:16,946 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:40:57" (3/4) ... [2024-09-12 19:42:16,948 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 19:42:16,955 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 19:42:16,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-09-12 19:42:16,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 19:42:16,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 19:42:16,964 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-09-12 19:42:16,969 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-09-12 19:42:16,970 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 19:42:16,970 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 19:42:17,120 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 19:42:17,121 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 19:42:17,121 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 19:42:17,122 INFO L158 Benchmark]: Toolchain (without parser) took 80758.14ms. Allocated memory was 90.2MB in the beginning and 390.1MB in the end (delta: 299.9MB). Free memory was 53.1MB in the beginning and 223.8MB in the end (delta: -170.7MB). Peak memory consumption was 129.2MB. Max. memory is 16.1GB. [2024-09-12 19:42:17,122 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:42:17,124 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.21ms. Allocated memory is still 90.2MB. Free memory was 52.8MB in the beginning and 40.7MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-12 19:42:17,124 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.78ms. Allocated memory is still 90.2MB. Free memory was 40.7MB in the beginning and 39.9MB in the end (delta: 854.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:42:17,124 INFO L158 Benchmark]: Boogie Preprocessor took 52.45ms. Allocated memory is still 90.2MB. Free memory was 39.9MB in the beginning and 70.1MB in the end (delta: -30.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-12 19:42:17,124 INFO L158 Benchmark]: RCFGBuilder took 531.03ms. Allocated memory is still 90.2MB. Free memory was 70.1MB in the beginning and 39.1MB in the end (delta: 31.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-09-12 19:42:17,124 INFO L158 Benchmark]: TraceAbstraction took 79765.72ms. Allocated memory was 90.2MB in the beginning and 390.1MB in the end (delta: 299.9MB). Free memory was 38.3MB in the beginning and 230.1MB in the end (delta: -191.8MB). Peak memory consumption was 204.2MB. Max. memory is 16.1GB. [2024-09-12 19:42:17,125 INFO L158 Benchmark]: Witness Printer took 175.93ms. Allocated memory is still 390.1MB. Free memory was 230.1MB in the beginning and 223.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-12 19:42:17,126 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 201.21ms. Allocated memory is still 90.2MB. Free memory was 52.8MB in the beginning and 40.7MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.78ms. Allocated memory is still 90.2MB. Free memory was 40.7MB in the beginning and 39.9MB in the end (delta: 854.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.45ms. Allocated memory is still 90.2MB. Free memory was 39.9MB in the beginning and 70.1MB in the end (delta: -30.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 531.03ms. Allocated memory is still 90.2MB. Free memory was 70.1MB in the beginning and 39.1MB in the end (delta: 31.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 79765.72ms. Allocated memory was 90.2MB in the beginning and 390.1MB in the end (delta: 299.9MB). Free memory was 38.3MB in the beginning and 230.1MB in the end (delta: -191.8MB). Peak memory consumption was 204.2MB. Max. memory is 16.1GB. * Witness Printer took 175.93ms. Allocated memory is still 390.1MB. Free memory was 230.1MB in the beginning and 223.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 195 locations, 85 error locations. Started 1 CEGAR loops. OverallTime: 77.3s, OverallIterations: 26, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 56.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 2417 SdHoareTripleChecker+Valid, 53.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2386 mSDsluCounter, 7018 SdHoareTripleChecker+Invalid, 52.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4545 mSDsCounter, 239 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9685 IncrementalHoareTripleChecker+Invalid, 9931 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 239 mSolverCounterUnsat, 2473 mSDtfsCounter, 9685 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3638 GetRequests, 3482 SyntacticMatches, 7 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=393occurred in iteration=22, InterpolantAutomatonStates: 141, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 26 MinimizatonAttempts, 169 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 13.6s InterpolantComputationTime, 4799 NumberOfCodeBlocks, 4648 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 4220 ConstructedInterpolants, 0 QuantifiedInterpolants, 32640 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2863 ConjunctsInSsa, 137 ConjunctsInUnsatCore, 38 InterpolantComputations, 18 PerfectInterpolantSequences, 1116/2052 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 85 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (((((((x == 0) && (0 <= k)) && (k <= 2)) && (c == 0)) && (y == 0)) || (((((1 <= k) && (y == 1)) && (k <= 2)) && (x == 1)) && (c == 1))) || ((((y == 2) && (c == 2)) && (k == 2)) && (x == 17))) - ProcedureContractResult [Line: 6]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (\old(cond) != 0) - ProcedureContractResult [Line: 9]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= \old(cond)) Ensures: (1 <= \old(cond)) RESULT: Ultimate proved your program to be correct! [2024-09-12 19:42:17,157 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE