./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo1-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/geo1-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 0477687fecbd3170f65e2eb11926275d6b3232cae024dd47071f89d509b612eb --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 19:05:16,104 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:05:16,177 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:05:16,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:05:16,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:05:16,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:05:16,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:05:16,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:05:16,215 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:05:16,215 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:05:16,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:05:16,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:05:16,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:05:16,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:05:16,221 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:05:16,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:05:16,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:05:16,222 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:05:16,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:05:16,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:05:16,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:05:16,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:05:16,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:05:16,227 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:05:16,228 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:05:16,228 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:05:16,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:05:16,228 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:05:16,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:05:16,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:05:16,229 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:05:16,230 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:05:16,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:05:16,230 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:05:16,230 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:05:16,231 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:05:16,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:05:16,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:05:16,231 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:05:16,232 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:05:16,232 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:05:16,232 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:05:16,233 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0477687fecbd3170f65e2eb11926275d6b3232cae024dd47071f89d509b612eb Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:05:16,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:05:16,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:05:16,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:05:16,602 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:05:16,602 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:05:16,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound2.c [2024-09-12 19:05:18,117 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:05:18,325 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:05:18,326 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound2.c [2024-09-12 19:05:18,332 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/fd68ef6f0/3a0ea05fbc344350bfe75369686df90f/FLAG0e2bcdedd [2024-09-12 19:05:18,345 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/fd68ef6f0/3a0ea05fbc344350bfe75369686df90f [2024-09-12 19:05:18,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:05:18,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:05:18,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:05:18,349 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:05:18,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:05:18,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:05:18" (1/1) ... [2024-09-12 19:05:18,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@563a90bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:18, skipping insertion in model container [2024-09-12 19:05:18,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:05:18" (1/1) ... [2024-09-12 19:05:18,374 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:05:18,536 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/geo1-ll_valuebound2.c[546,559] [2024-09-12 19:05:18,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:05:18,572 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:05:18,588 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/geo1-ll_valuebound2.c[546,559] [2024-09-12 19:05:18,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:05:18,617 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:05:18,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:18 WrapperNode [2024-09-12 19:05:18,617 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:05:18,619 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:05:18,619 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:05:18,619 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:05:18,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:18" (1/1) ... [2024-09-12 19:05:18,632 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:18" (1/1) ... [2024-09-12 19:05:18,639 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:05:18,639 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:05:18,640 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:05:18,641 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:05:18,641 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:05:18,651 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:18" (1/1) ... [2024-09-12 19:05:18,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:18" (1/1) ... [2024-09-12 19:05:18,652 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:18" (1/1) ... [2024-09-12 19:05:18,676 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 19:05:18,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:18" (1/1) ... [2024-09-12 19:05:18,676 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:18" (1/1) ... [2024-09-12 19:05:18,679 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:18" (1/1) ... [2024-09-12 19:05:18,683 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:18" (1/1) ... [2024-09-12 19:05:18,685 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:18" (1/1) ... [2024-09-12 19:05:18,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:18" (1/1) ... [2024-09-12 19:05:18,690 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:05:18,691 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:05:18,693 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:05:18,693 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:05:18,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:18" (1/1) ... [2024-09-12 19:05:18,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:05:18,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:18,725 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 19:05:18,729 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 19:05:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:05:18,779 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:05:18,780 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:05:18,780 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:05:18,780 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:05:18,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:05:18,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:05:18,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:05:18,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:05:18,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:05:18,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:05:18,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:05:18,847 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:05:18,849 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:05:19,203 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-09-12 19:05:19,203 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:05:19,237 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:05:19,238 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:05:19,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:05:19 BoogieIcfgContainer [2024-09-12 19:05:19,238 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:05:19,241 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:05:19,241 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:05:19,244 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:05:19,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:05:18" (1/3) ... [2024-09-12 19:05:19,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57028ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:05:19, skipping insertion in model container [2024-09-12 19:05:19,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:18" (2/3) ... [2024-09-12 19:05:19,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57028ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:05:19, skipping insertion in model container [2024-09-12 19:05:19,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:05:19" (3/3) ... [2024-09-12 19:05:19,247 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-ll_valuebound2.c [2024-09-12 19:05:19,264 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:05:19,264 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2024-09-12 19:05:19,332 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:05:19,337 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;@383cb7ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:05:19,338 INFO L337 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-09-12 19:05:19,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 39 states have (on average 1.7692307692307692) internal successors, (69), 64 states have internal predecessors, (69), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:05:19,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 19:05:19,349 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:19,350 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:19,351 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:19,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:19,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1567640167, now seen corresponding path program 1 times [2024-09-12 19:05:19,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:19,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909995868] [2024-09-12 19:05:19,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:19,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:19,483 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:19,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:19,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:19,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:19,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:19,523 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:19,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:19,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909995868] [2024-09-12 19:05:19,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909995868] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:19,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:19,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:05:19,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997968728] [2024-09-12 19:05:19,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:19,530 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:05:19,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:19,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:05:19,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:05:19,576 INFO L87 Difference]: Start difference. First operand has 77 states, 39 states have (on average 1.7692307692307692) internal successors, (69), 64 states have internal predecessors, (69), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:05:19,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:19,609 INFO L93 Difference]: Finished difference Result 148 states and 169 transitions. [2024-09-12 19:05:19,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:05:19,614 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2024-09-12 19:05:19,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:19,621 INFO L225 Difference]: With dead ends: 148 [2024-09-12 19:05:19,621 INFO L226 Difference]: Without dead ends: 73 [2024-09-12 19:05:19,625 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 19:05:19,628 INFO L434 NwaCegarLoop]: 79 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, 79 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 19:05:19,629 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:05:19,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-09-12 19:05:19,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-09-12 19:05:19,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 62 states have internal predecessors, (63), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:05:19,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2024-09-12 19:05:19,678 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 29 [2024-09-12 19:05:19,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:19,678 INFO L474 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2024-09-12 19:05:19,678 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:05:19,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:19,679 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2024-09-12 19:05:19,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 19:05:19,681 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:19,681 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:19,681 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:05:19,682 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:19,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:19,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1523748130, now seen corresponding path program 1 times [2024-09-12 19:05:19,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:19,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456025030] [2024-09-12 19:05:19,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:19,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:19,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [173132776] [2024-09-12 19:05:19,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:19,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:19,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:19,747 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 19:05:19,750 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 19:05:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:19,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:05:19,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:19,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:05:19,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:19,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456025030] [2024-09-12 19:05:19,893 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:19,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173132776] [2024-09-12 19:05:19,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173132776] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:19,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:19,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:05:19,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136719050] [2024-09-12 19:05:19,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:19,895 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:05:19,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:19,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:05:19,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:05:19,899 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 19:05:20,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:20,189 INFO L93 Difference]: Finished difference Result 101 states and 118 transitions. [2024-09-12 19:05:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:05:20,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 29 [2024-09-12 19:05:20,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:20,193 INFO L225 Difference]: With dead ends: 101 [2024-09-12 19:05:20,195 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 19:05:20,196 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 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 19:05:20,197 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 45 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:20,198 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 89 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:05:20,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 19:05:20,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2024-09-12 19:05:20,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 55 states have (on average 1.690909090909091) internal successors, (93), 80 states have internal predecessors, (93), 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 19:05:20,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 109 transitions. [2024-09-12 19:05:20,242 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 109 transitions. Word has length 29 [2024-09-12 19:05:20,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:20,243 INFO L474 AbstractCegarLoop]: Abstraction has 92 states and 109 transitions. [2024-09-12 19:05:20,244 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 19:05:20,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:20,245 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 109 transitions. [2024-09-12 19:05:20,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 19:05:20,246 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:20,247 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:20,265 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 19:05:20,447 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:20,448 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:20,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:20,449 INFO L85 PathProgramCache]: Analyzing trace with hash -8448164, now seen corresponding path program 1 times [2024-09-12 19:05:20,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:20,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828640984] [2024-09-12 19:05:20,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:20,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:20,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [443730957] [2024-09-12 19:05:20,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:20,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:20,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:20,488 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 19:05:20,492 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 19:05:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:20,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:05:20,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:20,607 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:20,608 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:05:20,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:20,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828640984] [2024-09-12 19:05:20,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:20,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443730957] [2024-09-12 19:05:20,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443730957] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:20,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:20,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:05:20,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355287706] [2024-09-12 19:05:20,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:20,610 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:05:20,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:20,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:05:20,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:05:20,613 INFO L87 Difference]: Start difference. First operand 92 states and 109 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 19:05:20,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:20,758 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2024-09-12 19:05:20,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:05:20,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 30 [2024-09-12 19:05:20,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:20,761 INFO L225 Difference]: With dead ends: 101 [2024-09-12 19:05:20,763 INFO L226 Difference]: Without dead ends: 95 [2024-09-12 19:05:20,763 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:05:20,764 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 63 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:20,765 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 72 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:05:20,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-09-12 19:05:20,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-09-12 19:05:20,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 57 states have (on average 1.5789473684210527) internal successors, (90), 81 states have internal predecessors, (90), 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 19:05:20,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 106 transitions. [2024-09-12 19:05:20,794 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 106 transitions. Word has length 30 [2024-09-12 19:05:20,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:20,794 INFO L474 AbstractCegarLoop]: Abstraction has 93 states and 106 transitions. [2024-09-12 19:05:20,795 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 19:05:20,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:20,795 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 106 transitions. [2024-09-12 19:05:20,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 19:05:20,796 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:20,796 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:20,815 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 19:05:20,999 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:21,000 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:21,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:21,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1723880358, now seen corresponding path program 1 times [2024-09-12 19:05:21,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:21,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293083414] [2024-09-12 19:05:21,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:21,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:21,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1064722711] [2024-09-12 19:05:21,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:21,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:21,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:21,039 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 19:05:21,041 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 19:05:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:21,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:05:21,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:21,127 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:21,127 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:05:21,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:21,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293083414] [2024-09-12 19:05:21,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:21,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064722711] [2024-09-12 19:05:21,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064722711] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:21,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:21,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:05:21,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968882226] [2024-09-12 19:05:21,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:21,140 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:05:21,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:21,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:05:21,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:05:21,141 INFO L87 Difference]: Start difference. First operand 93 states and 106 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:05:21,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:21,349 INFO L93 Difference]: Finished difference Result 97 states and 106 transitions. [2024-09-12 19:05:21,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:05:21,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 33 [2024-09-12 19:05:21,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:21,351 INFO L225 Difference]: With dead ends: 97 [2024-09-12 19:05:21,351 INFO L226 Difference]: Without dead ends: 95 [2024-09-12 19:05:21,351 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 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 19:05:21,352 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 16 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:21,353 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 86 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:05:21,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-09-12 19:05:21,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-09-12 19:05:21,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 57 states have (on average 1.543859649122807) internal successors, (88), 81 states have internal predecessors, (88), 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 19:05:21,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 104 transitions. [2024-09-12 19:05:21,367 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 104 transitions. Word has length 33 [2024-09-12 19:05:21,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:21,367 INFO L474 AbstractCegarLoop]: Abstraction has 93 states and 104 transitions. [2024-09-12 19:05:21,368 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:05:21,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:21,368 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 104 transitions. [2024-09-12 19:05:21,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 19:05:21,369 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:21,369 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:21,386 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 19:05:21,573 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:21,574 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:21,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:21,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1900683616, now seen corresponding path program 1 times [2024-09-12 19:05:21,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:21,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5876801] [2024-09-12 19:05:21,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:21,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:21,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:21,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:21,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:21,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:21,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:21,890 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:05:21,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:21,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5876801] [2024-09-12 19:05:21,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5876801] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:21,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159097494] [2024-09-12 19:05:21,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:21,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:21,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:21,893 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 19:05:21,894 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 19:05:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:21,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:05:21,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:21,996 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:22,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:05:22,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159097494] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:22,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:05:22,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-09-12 19:05:22,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975827127] [2024-09-12 19:05:22,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:22,001 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:05:22,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:22,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:05:22,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:05:22,002 INFO L87 Difference]: Start difference. First operand 93 states and 104 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:05:22,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:22,142 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2024-09-12 19:05:22,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:05:22,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 34 [2024-09-12 19:05:22,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:22,144 INFO L225 Difference]: With dead ends: 97 [2024-09-12 19:05:22,144 INFO L226 Difference]: Without dead ends: 95 [2024-09-12 19:05:22,144 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:05:22,145 INFO L434 NwaCegarLoop]: 58 mSDtfsCounter, 15 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:22,145 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 88 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:05:22,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-09-12 19:05:22,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-09-12 19:05:22,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 57 states have (on average 1.5087719298245614) internal successors, (86), 81 states have internal predecessors, (86), 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 19:05:22,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2024-09-12 19:05:22,164 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 34 [2024-09-12 19:05:22,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:22,166 INFO L474 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2024-09-12 19:05:22,167 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:05:22,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:22,167 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2024-09-12 19:05:22,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 19:05:22,168 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:22,168 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:22,188 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 19:05:22,372 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:22,373 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:22,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:22,373 INFO L85 PathProgramCache]: Analyzing trace with hash -722097138, now seen corresponding path program 1 times [2024-09-12 19:05:22,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:22,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758410671] [2024-09-12 19:05:22,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:22,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:22,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2027439659] [2024-09-12 19:05:22,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:22,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:22,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:22,389 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 19:05:22,391 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 19:05:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:22,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:05:22,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:22,547 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:22,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:05:22,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:22,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758410671] [2024-09-12 19:05:22,548 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:22,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027439659] [2024-09-12 19:05:22,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027439659] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:22,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:22,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:05:22,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930647960] [2024-09-12 19:05:22,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:22,549 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:05:22,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:22,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:05:22,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:05:22,550 INFO L87 Difference]: Start difference. First operand 93 states and 102 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:05:22,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:22,710 INFO L93 Difference]: Finished difference Result 101 states and 107 transitions. [2024-09-12 19:05:22,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:05:22,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 40 [2024-09-12 19:05:22,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:22,714 INFO L225 Difference]: With dead ends: 101 [2024-09-12 19:05:22,714 INFO L226 Difference]: Without dead ends: 99 [2024-09-12 19:05:22,715 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 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 19:05:22,715 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 15 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:22,715 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 191 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:05:22,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-09-12 19:05:22,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2024-09-12 19:05:22,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 84 states have internal predecessors, (89), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:22,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2024-09-12 19:05:22,737 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 40 [2024-09-12 19:05:22,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:22,738 INFO L474 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2024-09-12 19:05:22,738 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:05:22,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:22,738 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2024-09-12 19:05:22,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 19:05:22,739 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:22,739 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:22,756 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 19:05:22,941 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:05:22,941 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:22,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:22,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1500224217, now seen corresponding path program 1 times [2024-09-12 19:05:22,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:22,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125852985] [2024-09-12 19:05:22,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:22,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:23,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,098 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:05:23,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:23,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125852985] [2024-09-12 19:05:23,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125852985] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:23,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10128503] [2024-09-12 19:05:23,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:23,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:23,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:23,102 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 19:05:23,104 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 19:05:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:05:23,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:23,200 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:05:23,200 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:23,296 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:05:23,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10128503] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:05:23,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:05:23,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-09-12 19:05:23,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468953259] [2024-09-12 19:05:23,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:05:23,297 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:05:23,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:23,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:05:23,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:05:23,298 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-09-12 19:05:23,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:23,469 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2024-09-12 19:05:23,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:05:23,470 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 43 [2024-09-12 19:05:23,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:23,471 INFO L225 Difference]: With dead ends: 97 [2024-09-12 19:05:23,471 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 19:05:23,472 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:05:23,472 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 28 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:23,472 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 192 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:05:23,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 19:05:23,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-09-12 19:05:23,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 60 states have (on average 1.45) internal successors, (87), 83 states have internal predecessors, (87), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:23,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 103 transitions. [2024-09-12 19:05:23,493 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 103 transitions. Word has length 43 [2024-09-12 19:05:23,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:23,494 INFO L474 AbstractCegarLoop]: Abstraction has 96 states and 103 transitions. [2024-09-12 19:05:23,494 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-09-12 19:05:23,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:23,494 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 103 transitions. [2024-09-12 19:05:23,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 19:05:23,495 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:23,495 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:23,513 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 19:05:23,695 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:23,696 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:23,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:23,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1500224260, now seen corresponding path program 1 times [2024-09-12 19:05:23,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:23,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980623313] [2024-09-12 19:05:23,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:23,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,772 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:23,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:23,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980623313] [2024-09-12 19:05:23,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980623313] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:23,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:23,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:05:23,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501697680] [2024-09-12 19:05:23,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:23,773 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:05:23,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:23,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:05:23,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:05:23,774 INFO L87 Difference]: Start difference. First operand 96 states and 103 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:23,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:23,804 INFO L93 Difference]: Finished difference Result 98 states and 103 transitions. [2024-09-12 19:05:23,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:05:23,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2024-09-12 19:05:23,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:23,808 INFO L225 Difference]: With dead ends: 98 [2024-09-12 19:05:23,808 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 19:05:23,808 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 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 19:05:23,809 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 1 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:23,810 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 136 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:05:23,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 19:05:23,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-09-12 19:05:23,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 83 states have internal predecessors, (85), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:23,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 101 transitions. [2024-09-12 19:05:23,834 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 101 transitions. Word has length 43 [2024-09-12 19:05:23,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:23,835 INFO L474 AbstractCegarLoop]: Abstraction has 96 states and 101 transitions. [2024-09-12 19:05:23,835 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:23,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:23,835 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 101 transitions. [2024-09-12 19:05:23,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 19:05:23,837 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:23,837 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:23,837 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 19:05:23,837 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:23,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:23,838 INFO L85 PathProgramCache]: Analyzing trace with hash 842067997, now seen corresponding path program 1 times [2024-09-12 19:05:23,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:23,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033030067] [2024-09-12 19:05:23,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:23,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:23,947 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:23,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:23,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033030067] [2024-09-12 19:05:23,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033030067] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:23,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:23,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:05:23,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267728680] [2024-09-12 19:05:23,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:23,951 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:05:23,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:23,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:05:23,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:05:23,951 INFO L87 Difference]: Start difference. First operand 96 states and 101 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:24,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:24,156 INFO L93 Difference]: Finished difference Result 125 states and 146 transitions. [2024-09-12 19:05:24,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:05:24,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 47 [2024-09-12 19:05:24,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:24,157 INFO L225 Difference]: With dead ends: 125 [2024-09-12 19:05:24,158 INFO L226 Difference]: Without dead ends: 124 [2024-09-12 19:05:24,158 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:05:24,158 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 41 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:24,159 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 93 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:05:24,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-09-12 19:05:24,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 97. [2024-09-12 19:05:24,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 61 states have (on average 1.4098360655737705) internal successors, (86), 84 states have internal predecessors, (86), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:24,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 102 transitions. [2024-09-12 19:05:24,180 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 102 transitions. Word has length 47 [2024-09-12 19:05:24,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:24,180 INFO L474 AbstractCegarLoop]: Abstraction has 97 states and 102 transitions. [2024-09-12 19:05:24,180 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:24,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:24,181 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 102 transitions. [2024-09-12 19:05:24,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 19:05:24,181 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:24,182 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:24,182 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 19:05:24,182 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:24,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:24,182 INFO L85 PathProgramCache]: Analyzing trace with hash 334304242, now seen corresponding path program 1 times [2024-09-12 19:05:24,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:24,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336580187] [2024-09-12 19:05:24,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:24,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:24,232 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:24,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:24,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:24,242 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:24,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:24,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:24,251 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:24,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:24,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336580187] [2024-09-12 19:05:24,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336580187] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:24,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:24,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:05:24,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279981120] [2024-09-12 19:05:24,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:24,254 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:05:24,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:24,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:05:24,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:05:24,255 INFO L87 Difference]: Start difference. First operand 97 states and 102 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:24,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:24,519 INFO L93 Difference]: Finished difference Result 99 states and 104 transitions. [2024-09-12 19:05:24,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:05:24,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2024-09-12 19:05:24,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:24,520 INFO L225 Difference]: With dead ends: 99 [2024-09-12 19:05:24,521 INFO L226 Difference]: Without dead ends: 98 [2024-09-12 19:05:24,521 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:05:24,521 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 15 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:24,522 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 125 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:05:24,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-09-12 19:05:24,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-09-12 19:05:24,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 62 states have (on average 1.403225806451613) internal successors, (87), 85 states have internal predecessors, (87), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:24,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 103 transitions. [2024-09-12 19:05:24,534 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 103 transitions. Word has length 48 [2024-09-12 19:05:24,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:24,534 INFO L474 AbstractCegarLoop]: Abstraction has 98 states and 103 transitions. [2024-09-12 19:05:24,535 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:24,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:24,535 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 103 transitions. [2024-09-12 19:05:24,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 19:05:24,536 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:24,536 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:24,536 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 19:05:24,536 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:24,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:24,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1773497023, now seen corresponding path program 1 times [2024-09-12 19:05:24,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:24,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890930176] [2024-09-12 19:05:24,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:24,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:24,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:24,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:24,610 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:24,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:24,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:24,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:24,618 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:24,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:24,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890930176] [2024-09-12 19:05:24,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890930176] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:24,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:24,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:05:24,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689734262] [2024-09-12 19:05:24,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:24,619 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:05:24,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:24,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:05:24,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:05:24,620 INFO L87 Difference]: Start difference. First operand 98 states and 103 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:24,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:24,955 INFO L93 Difference]: Finished difference Result 98 states and 103 transitions. [2024-09-12 19:05:24,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:05:24,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 49 [2024-09-12 19:05:24,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:24,957 INFO L225 Difference]: With dead ends: 98 [2024-09-12 19:05:24,957 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 19:05:24,957 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 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 19:05:24,957 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 15 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:24,958 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 93 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:05:24,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 19:05:24,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-09-12 19:05:24,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 83 states have internal predecessors, (85), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:24,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 101 transitions. [2024-09-12 19:05:24,974 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 101 transitions. Word has length 49 [2024-09-12 19:05:24,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:24,974 INFO L474 AbstractCegarLoop]: Abstraction has 96 states and 101 transitions. [2024-09-12 19:05:24,974 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:24,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:24,975 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 101 transitions. [2024-09-12 19:05:24,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 19:05:24,975 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:24,975 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:24,976 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-12 19:05:24,976 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:24,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:24,976 INFO L85 PathProgramCache]: Analyzing trace with hash 719363978, now seen corresponding path program 1 times [2024-09-12 19:05:24,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:24,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384766541] [2024-09-12 19:05:24,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:24,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:24,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [691049437] [2024-09-12 19:05:24,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:24,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:24,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:24,988 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 19:05:24,989 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 19:05:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:25,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:05:25,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:25,178 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:05:25,179 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:25,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:25,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384766541] [2024-09-12 19:05:25,298 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:25,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691049437] [2024-09-12 19:05:25,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691049437] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:25,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:05:25,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:05:25,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012460737] [2024-09-12 19:05:25,298 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:05:25,299 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:05:25,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:25,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:05:25,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:05:25,299 INFO L87 Difference]: Start difference. First operand 96 states and 101 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:05:25,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:25,448 INFO L93 Difference]: Finished difference Result 96 states and 101 transitions. [2024-09-12 19:05:25,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:05:25,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 49 [2024-09-12 19:05:25,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:25,450 INFO L225 Difference]: With dead ends: 96 [2024-09-12 19:05:25,450 INFO L226 Difference]: Without dead ends: 95 [2024-09-12 19:05:25,450 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:05:25,450 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 15 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:25,451 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 135 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:05:25,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-09-12 19:05:25,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-09-12 19:05:25,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 82 states have internal predecessors, (84), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:25,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 100 transitions. [2024-09-12 19:05:25,470 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 100 transitions. Word has length 49 [2024-09-12 19:05:25,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:25,470 INFO L474 AbstractCegarLoop]: Abstraction has 95 states and 100 transitions. [2024-09-12 19:05:25,471 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:05:25,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:25,471 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 100 transitions. [2024-09-12 19:05:25,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 19:05:25,473 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:25,474 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:25,490 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 19:05:25,674 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:25,675 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:25,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:25,675 INFO L85 PathProgramCache]: Analyzing trace with hash -856167020, now seen corresponding path program 1 times [2024-09-12 19:05:25,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:25,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403672451] [2024-09-12 19:05:25,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:25,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:25,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:25,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:25,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:25,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:25,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:25,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:25,753 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:25,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:25,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403672451] [2024-09-12 19:05:25,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403672451] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:25,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:25,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:05:25,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124635461] [2024-09-12 19:05:25,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:25,754 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:05:25,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:25,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:05:25,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:05:25,755 INFO L87 Difference]: Start difference. First operand 95 states and 100 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:26,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:26,220 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2024-09-12 19:05:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:05:26,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 50 [2024-09-12 19:05:26,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:26,221 INFO L225 Difference]: With dead ends: 95 [2024-09-12 19:05:26,221 INFO L226 Difference]: Without dead ends: 94 [2024-09-12 19:05:26,221 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 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 19:05:26,222 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 17 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:26,222 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 94 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:05:26,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-09-12 19:05:26,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-09-12 19:05:26,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 81 states have internal predecessors, (83), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:26,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2024-09-12 19:05:26,248 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 50 [2024-09-12 19:05:26,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:26,248 INFO L474 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2024-09-12 19:05:26,248 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:26,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:26,249 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2024-09-12 19:05:26,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 19:05:26,249 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:26,250 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:26,250 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-12 19:05:26,250 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:26,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:26,250 INFO L85 PathProgramCache]: Analyzing trace with hash 825446934, now seen corresponding path program 1 times [2024-09-12 19:05:26,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:26,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6945840] [2024-09-12 19:05:26,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:26,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:26,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1110045858] [2024-09-12 19:05:26,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:26,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:26,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:26,262 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 19:05:26,264 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 19:05:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:26,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:05:26,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:26,460 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:05:26,461 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:26,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:26,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6945840] [2024-09-12 19:05:26,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:26,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110045858] [2024-09-12 19:05:26,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110045858] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:26,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:05:26,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:05:26,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255474353] [2024-09-12 19:05:26,906 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:05:26,906 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:05:26,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:26,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:05:26,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:05:26,907 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:05:27,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:27,053 INFO L93 Difference]: Finished difference Result 97 states and 102 transitions. [2024-09-12 19:05:27,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:05:27,053 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 50 [2024-09-12 19:05:27,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:27,054 INFO L225 Difference]: With dead ends: 97 [2024-09-12 19:05:27,054 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 19:05:27,055 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:05:27,055 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 33 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:27,055 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 137 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:05:27,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 19:05:27,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-09-12 19:05:27,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 64 states have (on average 1.328125) internal successors, (85), 83 states have internal predecessors, (85), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:27,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 101 transitions. [2024-09-12 19:05:27,076 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 101 transitions. Word has length 50 [2024-09-12 19:05:27,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:27,076 INFO L474 AbstractCegarLoop]: Abstraction has 96 states and 101 transitions. [2024-09-12 19:05:27,077 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:05:27,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:27,077 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 101 transitions. [2024-09-12 19:05:27,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 19:05:27,078 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:27,078 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-09-12 19:05:27,090 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 19:05:27,278 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:27,279 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:27,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:27,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1314444328, now seen corresponding path program 1 times [2024-09-12 19:05:27,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:27,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421084125] [2024-09-12 19:05:27,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:27,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:27,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1884488033] [2024-09-12 19:05:27,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:27,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:27,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:27,291 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 19:05:27,292 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 19:05:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:27,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:05:27,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:27,492 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:05:27,493 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:27,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:27,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421084125] [2024-09-12 19:05:27,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:27,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884488033] [2024-09-12 19:05:27,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884488033] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:27,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:05:27,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 19:05:27,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825381615] [2024-09-12 19:05:27,656 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:05:27,657 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:05:27,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:27,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:05:27,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:05:27,657 INFO L87 Difference]: Start difference. First operand 96 states and 101 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:05:27,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:27,852 INFO L93 Difference]: Finished difference Result 96 states and 101 transitions. [2024-09-12 19:05:27,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:05:27,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 52 [2024-09-12 19:05:27,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:27,853 INFO L225 Difference]: With dead ends: 96 [2024-09-12 19:05:27,853 INFO L226 Difference]: Without dead ends: 91 [2024-09-12 19:05:27,854 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:05:27,854 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 66 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:27,854 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 160 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:05:27,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-09-12 19:05:27,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-09-12 19:05:27,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 64 states have (on average 1.25) internal successors, (80), 78 states have internal predecessors, (80), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:27,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 96 transitions. [2024-09-12 19:05:27,871 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 96 transitions. Word has length 52 [2024-09-12 19:05:27,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:27,871 INFO L474 AbstractCegarLoop]: Abstraction has 91 states and 96 transitions. [2024-09-12 19:05:27,871 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:05:27,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:27,872 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 96 transitions. [2024-09-12 19:05:27,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 19:05:27,873 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:27,873 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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 19:05:27,889 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 19:05:28,073 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:05:28,074 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:28,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:28,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1918744834, now seen corresponding path program 1 times [2024-09-12 19:05:28,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:28,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787659232] [2024-09-12 19:05:28,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:28,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:28,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:28,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:28,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:28,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:28,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:28,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:28,213 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:28,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:28,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787659232] [2024-09-12 19:05:28,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787659232] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:28,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021964947] [2024-09-12 19:05:28,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:28,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:28,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:28,216 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 19:05:28,218 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 19:05:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:28,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:05:28,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:28,353 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:28,353 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:05:28,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021964947] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:28,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:05:28,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2024-09-12 19:05:28,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170341087] [2024-09-12 19:05:28,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:28,354 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:05:28,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:28,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:05:28,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:05:28,355 INFO L87 Difference]: Start difference. First operand 91 states and 96 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:28,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:28,579 INFO L93 Difference]: Finished difference Result 100 states and 104 transitions. [2024-09-12 19:05:28,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:05:28,580 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 54 [2024-09-12 19:05:28,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:28,581 INFO L225 Difference]: With dead ends: 100 [2024-09-12 19:05:28,581 INFO L226 Difference]: Without dead ends: 85 [2024-09-12 19:05:28,581 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:05:28,582 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 9 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:28,582 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 179 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:05:28,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-09-12 19:05:28,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-09-12 19:05:28,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 72 states have internal predecessors, (73), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:28,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2024-09-12 19:05:28,597 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 54 [2024-09-12 19:05:28,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:28,598 INFO L474 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2024-09-12 19:05:28,598 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:28,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:28,598 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2024-09-12 19:05:28,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 19:05:28,599 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:28,599 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:28,616 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 19:05:28,803 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:05:28,804 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:28,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:28,804 INFO L85 PathProgramCache]: Analyzing trace with hash -2093068442, now seen corresponding path program 1 times [2024-09-12 19:05:28,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:28,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244355275] [2024-09-12 19:05:28,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:28,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:28,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1264772379] [2024-09-12 19:05:28,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:28,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:28,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:28,816 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 19:05:28,817 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 19:05:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:28,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:05:28,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:29,015 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:05:29,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:29,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:29,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244355275] [2024-09-12 19:05:29,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:29,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264772379] [2024-09-12 19:05:29,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264772379] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:29,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:05:29,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 19:05:29,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299852314] [2024-09-12 19:05:29,603 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:05:29,603 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:05:29,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:29,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:05:29,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:05:29,604 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:05:29,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:29,751 INFO L93 Difference]: Finished difference Result 113 states and 122 transitions. [2024-09-12 19:05:29,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:05:29,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 53 [2024-09-12 19:05:29,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:29,752 INFO L225 Difference]: With dead ends: 113 [2024-09-12 19:05:29,752 INFO L226 Difference]: Without dead ends: 108 [2024-09-12 19:05:29,753 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:05:29,753 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 63 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:29,753 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 144 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:05:29,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-09-12 19:05:29,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2024-09-12 19:05:29,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 78 states have (on average 1.2692307692307692) internal successors, (99), 92 states have internal predecessors, (99), 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 19:05:29,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 117 transitions. [2024-09-12 19:05:29,771 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 117 transitions. Word has length 53 [2024-09-12 19:05:29,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:29,772 INFO L474 AbstractCegarLoop]: Abstraction has 106 states and 117 transitions. [2024-09-12 19:05:29,772 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:05:29,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:29,772 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 117 transitions. [2024-09-12 19:05:29,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 19:05:29,773 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:29,773 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:29,788 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 19:05:29,973 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 19:05:29,974 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:29,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:29,974 INFO L85 PathProgramCache]: Analyzing trace with hash -266688676, now seen corresponding path program 1 times [2024-09-12 19:05:29,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:29,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599774130] [2024-09-12 19:05:29,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:29,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:29,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1949129612] [2024-09-12 19:05:29,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:29,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:29,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:29,985 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 19:05:29,987 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 19:05:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:30,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:05:30,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:30,139 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:30,140 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:30,757 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:30,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:30,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599774130] [2024-09-12 19:05:30,758 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:30,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949129612] [2024-09-12 19:05:30,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949129612] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:05:30,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:05:30,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:05:30,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023099318] [2024-09-12 19:05:30,759 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:05:30,759 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:05:30,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:30,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:05:30,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:05:30,760 INFO L87 Difference]: Start difference. First operand 106 states and 117 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:05:31,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:31,481 INFO L93 Difference]: Finished difference Result 119 states and 129 transitions. [2024-09-12 19:05:31,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:05:31,481 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2024-09-12 19:05:31,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:31,482 INFO L225 Difference]: With dead ends: 119 [2024-09-12 19:05:31,482 INFO L226 Difference]: Without dead ends: 116 [2024-09-12 19:05:31,483 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:05:31,483 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 39 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:31,483 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 178 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:05:31,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-09-12 19:05:31,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2024-09-12 19:05:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 86 states have (on average 1.244186046511628) internal successors, (107), 100 states have internal predecessors, (107), 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 19:05:31,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 125 transitions. [2024-09-12 19:05:31,505 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 125 transitions. Word has length 56 [2024-09-12 19:05:31,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:31,505 INFO L474 AbstractCegarLoop]: Abstraction has 114 states and 125 transitions. [2024-09-12 19:05:31,506 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:05:31,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:31,506 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 125 transitions. [2024-09-12 19:05:31,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 19:05:31,507 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:31,507 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-09-12 19:05:31,523 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 19:05:31,707 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 19:05:31,708 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:31,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:31,708 INFO L85 PathProgramCache]: Analyzing trace with hash -839000168, now seen corresponding path program 1 times [2024-09-12 19:05:31,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:31,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739430633] [2024-09-12 19:05:31,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:31,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:31,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1603428389] [2024-09-12 19:05:31,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:31,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:31,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:31,724 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 19:05:31,733 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 19:05:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:31,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 19:05:31,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:31,949 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:05:31,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:32,953 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:32,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:32,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739430633] [2024-09-12 19:05:32,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:32,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603428389] [2024-09-12 19:05:32,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603428389] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:32,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:05:32,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-09-12 19:05:32,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988089802] [2024-09-12 19:05:32,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:32,954 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:05:32,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:32,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:05:32,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:05:32,955 INFO L87 Difference]: Start difference. First operand 114 states and 125 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:33,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:33,433 INFO L93 Difference]: Finished difference Result 120 states and 130 transitions. [2024-09-12 19:05:33,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:05:33,434 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2024-09-12 19:05:33,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:33,435 INFO L225 Difference]: With dead ends: 120 [2024-09-12 19:05:33,435 INFO L226 Difference]: Without dead ends: 113 [2024-09-12 19:05:33,435 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:05:33,436 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 27 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:33,436 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 149 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:05:33,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-09-12 19:05:33,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 105. [2024-09-12 19:05:33,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 80 states have (on average 1.175) internal successors, (94), 90 states have internal predecessors, (94), 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 19:05:33,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 112 transitions. [2024-09-12 19:05:33,457 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 112 transitions. Word has length 63 [2024-09-12 19:05:33,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:33,458 INFO L474 AbstractCegarLoop]: Abstraction has 105 states and 112 transitions. [2024-09-12 19:05:33,458 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:33,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:33,458 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 112 transitions. [2024-09-12 19:05:33,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 19:05:33,459 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:33,459 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:33,478 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 19:05:33,660 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:33,660 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:33,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:33,660 INFO L85 PathProgramCache]: Analyzing trace with hash 2060534586, now seen corresponding path program 1 times [2024-09-12 19:05:33,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:33,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747409275] [2024-09-12 19:05:33,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:33,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:33,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:33,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:33,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:33,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:33,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:33,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:33,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:05:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:33,735 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:05:33,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:33,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747409275] [2024-09-12 19:05:33,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747409275] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:33,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827322259] [2024-09-12 19:05:33,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:33,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:33,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:33,738 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 19:05:33,740 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 19:05:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:33,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:05:33,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:33,830 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:05:33,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:05:33,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827322259] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:33,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:05:33,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 19:05:33,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305614160] [2024-09-12 19:05:33,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:33,832 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:05:33,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:33,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:05:33,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:05:33,832 INFO L87 Difference]: Start difference. First operand 105 states and 112 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:05:33,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:33,870 INFO L93 Difference]: Finished difference Result 105 states and 112 transitions. [2024-09-12 19:05:33,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:05:33,870 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), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 66 [2024-09-12 19:05:33,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:33,871 INFO L225 Difference]: With dead ends: 105 [2024-09-12 19:05:33,871 INFO L226 Difference]: Without dead ends: 104 [2024-09-12 19:05:33,872 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 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 19:05:33,872 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 11 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 110 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 19:05:33,872 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 110 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:05:33,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-09-12 19:05:33,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-09-12 19:05:33,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 80 states have (on average 1.15) internal successors, (92), 89 states have internal predecessors, (92), 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 19:05:33,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 110 transitions. [2024-09-12 19:05:33,893 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 110 transitions. Word has length 66 [2024-09-12 19:05:33,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:33,893 INFO L474 AbstractCegarLoop]: Abstraction has 104 states and 110 transitions. [2024-09-12 19:05:33,894 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), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:05:33,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:33,894 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 110 transitions. [2024-09-12 19:05:33,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 19:05:33,895 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:33,895 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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 19:05:33,910 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 19:05:34,095 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:34,096 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:34,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:34,096 INFO L85 PathProgramCache]: Analyzing trace with hash -547937190, now seen corresponding path program 1 times [2024-09-12 19:05:34,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:34,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075601972] [2024-09-12 19:05:34,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:34,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,145 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:05:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,154 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:05:34,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:34,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075601972] [2024-09-12 19:05:34,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075601972] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:34,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243461350] [2024-09-12 19:05:34,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:34,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:34,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:34,157 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 19:05:34,161 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 19:05:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:05:34,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:34,252 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:05:34,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:34,320 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:05:34,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243461350] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:05:34,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:05:34,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 19:05:34,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912591453] [2024-09-12 19:05:34,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:05:34,321 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:05:34,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:34,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:05:34,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:05:34,321 INFO L87 Difference]: Start difference. First operand 104 states and 110 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 6 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-09-12 19:05:34,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:34,382 INFO L93 Difference]: Finished difference Result 147 states and 158 transitions. [2024-09-12 19:05:34,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:05:34,383 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 6 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 67 [2024-09-12 19:05:34,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:34,384 INFO L225 Difference]: With dead ends: 147 [2024-09-12 19:05:34,384 INFO L226 Difference]: Without dead ends: 146 [2024-09-12 19:05:34,385 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 145 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 19:05:34,386 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 14 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 212 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 19:05:34,386 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 212 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:05:34,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-09-12 19:05:34,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 138. [2024-09-12 19:05:34,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 112 states have (on average 1.1875) internal successors, (133), 121 states have internal predecessors, (133), 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 19:05:34,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 155 transitions. [2024-09-12 19:05:34,420 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 155 transitions. Word has length 67 [2024-09-12 19:05:34,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:34,420 INFO L474 AbstractCegarLoop]: Abstraction has 138 states and 155 transitions. [2024-09-12 19:05:34,421 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 6 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-09-12 19:05:34,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:34,421 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 155 transitions. [2024-09-12 19:05:34,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 19:05:34,422 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:34,422 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:34,438 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 19:05:34,622 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 19:05:34,623 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:34,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:34,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1534823763, now seen corresponding path program 1 times [2024-09-12 19:05:34,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:34,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687602513] [2024-09-12 19:05:34,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:34,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:05:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:34,698 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-09-12 19:05:34,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:34,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687602513] [2024-09-12 19:05:34,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687602513] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:34,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:34,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:05:34,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157947878] [2024-09-12 19:05:34,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:34,700 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:05:34,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:34,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:05:34,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:05:34,701 INFO L87 Difference]: Start difference. First operand 138 states and 155 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:05:34,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:34,958 INFO L93 Difference]: Finished difference Result 138 states and 155 transitions. [2024-09-12 19:05:34,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:05:34,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-09-12 19:05:34,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:34,962 INFO L225 Difference]: With dead ends: 138 [2024-09-12 19:05:34,962 INFO L226 Difference]: Without dead ends: 137 [2024-09-12 19:05:34,962 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:05:34,963 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 32 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:34,963 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 89 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:05:34,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-09-12 19:05:35,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-09-12 19:05:35,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 112 states have (on average 1.1785714285714286) internal successors, (132), 120 states have internal predecessors, (132), 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 19:05:35,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 154 transitions. [2024-09-12 19:05:35,008 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 154 transitions. Word has length 70 [2024-09-12 19:05:35,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:35,009 INFO L474 AbstractCegarLoop]: Abstraction has 137 states and 154 transitions. [2024-09-12 19:05:35,009 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:05:35,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:35,009 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 154 transitions. [2024-09-12 19:05:35,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 19:05:35,010 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:35,010 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:35,010 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-09-12 19:05:35,010 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:35,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:35,010 INFO L85 PathProgramCache]: Analyzing trace with hash 334896508, now seen corresponding path program 1 times [2024-09-12 19:05:35,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:35,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743256475] [2024-09-12 19:05:35,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:35,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,098 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:05:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,131 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-09-12 19:05:35,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:35,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743256475] [2024-09-12 19:05:35,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743256475] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:35,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:35,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 19:05:35,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361079677] [2024-09-12 19:05:35,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:35,132 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:05:35,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:35,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:05:35,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:05:35,135 INFO L87 Difference]: Start difference. First operand 137 states and 154 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:05:35,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:35,324 INFO L93 Difference]: Finished difference Result 137 states and 154 transitions. [2024-09-12 19:05:35,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:05:35,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2024-09-12 19:05:35,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:35,325 INFO L225 Difference]: With dead ends: 137 [2024-09-12 19:05:35,325 INFO L226 Difference]: Without dead ends: 135 [2024-09-12 19:05:35,326 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:05:35,326 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 32 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:35,326 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 155 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:05:35,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-09-12 19:05:35,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 131. [2024-09-12 19:05:35,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 108 states have (on average 1.1666666666666667) internal successors, (126), 114 states have internal predecessors, (126), 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 19:05:35,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 148 transitions. [2024-09-12 19:05:35,353 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 148 transitions. Word has length 71 [2024-09-12 19:05:35,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:35,353 INFO L474 AbstractCegarLoop]: Abstraction has 131 states and 148 transitions. [2024-09-12 19:05:35,353 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:05:35,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:35,354 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 148 transitions. [2024-09-12 19:05:35,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-09-12 19:05:35,354 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:35,354 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-09-12 19:05:35,354 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-09-12 19:05:35,354 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:35,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:35,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1394614560, now seen corresponding path program 1 times [2024-09-12 19:05:35,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:35,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112676586] [2024-09-12 19:05:35,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:35,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:05:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,496 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 11 proven. 17 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-12 19:05:35,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:35,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112676586] [2024-09-12 19:05:35,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112676586] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:35,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209987731] [2024-09-12 19:05:35,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:35,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:35,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:35,499 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 19:05:35,500 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 19:05:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:35,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:05:35,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:35,691 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-12 19:05:35,691 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:35,801 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-12 19:05:35,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209987731] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:05:35,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:05:35,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-09-12 19:05:35,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406037747] [2024-09-12 19:05:35,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:05:35,802 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 19:05:35,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:35,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 19:05:35,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:05:35,803 INFO L87 Difference]: Start difference. First operand 131 states and 148 transitions. Second operand has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 11 states have internal predecessors, (109), 9 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 9 states have call predecessors, (14), 9 states have call successors, (14) [2024-09-12 19:05:35,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:35,900 INFO L93 Difference]: Finished difference Result 148 states and 163 transitions. [2024-09-12 19:05:35,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:05:35,900 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 11 states have internal predecessors, (109), 9 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 9 states have call predecessors, (14), 9 states have call successors, (14) Word has length 73 [2024-09-12 19:05:35,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:35,901 INFO L225 Difference]: With dead ends: 148 [2024-09-12 19:05:35,901 INFO L226 Difference]: Without dead ends: 66 [2024-09-12 19:05:35,902 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:05:35,902 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:35,902 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 391 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:05:35,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-09-12 19:05:35,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-09-12 19:05:35,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 52 states have (on average 1.0) internal successors, (52), 52 states have internal predecessors, (52), 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 19:05:35,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2024-09-12 19:05:35,917 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 73 [2024-09-12 19:05:35,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:35,917 INFO L474 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2024-09-12 19:05:35,917 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 11 states have internal predecessors, (109), 9 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 9 states have call predecessors, (14), 9 states have call successors, (14) [2024-09-12 19:05:35,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:35,918 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2024-09-12 19:05:35,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-09-12 19:05:35,918 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:35,918 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:35,938 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 19:05:36,119 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:36,119 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:36,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:36,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1058832648, now seen corresponding path program 1 times [2024-09-12 19:05:36,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:36,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420468362] [2024-09-12 19:05:36,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:36,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:36,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:36,242 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:36,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:36,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:36,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:36,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:36,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:05:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:36,268 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-12 19:05:36,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:36,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420468362] [2024-09-12 19:05:36,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420468362] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:36,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324376769] [2024-09-12 19:05:36,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:36,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:36,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:36,271 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 19:05:36,273 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 19:05:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:36,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 19:05:36,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:36,449 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:05:36,450 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:36,554 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-12 19:05:36,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324376769] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:05:36,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:05:36,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 7] total 14 [2024-09-12 19:05:36,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441135615] [2024-09-12 19:05:36,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:05:36,555 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:05:36,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:36,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:05:36,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:05:36,556 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 19:05:36,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:36,820 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2024-09-12 19:05:36,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:05:36,821 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 77 [2024-09-12 19:05:36,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:36,821 INFO L225 Difference]: With dead ends: 66 [2024-09-12 19:05:36,821 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:05:36,822 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:05:36,822 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 36 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:36,823 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 136 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:05:36,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:05:36,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:05:36,823 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 19:05:36,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:05:36,823 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2024-09-12 19:05:36,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:36,824 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:05:36,824 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 19:05:36,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:36,824 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:05:36,826 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:05:36,829 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 25 remaining) [2024-09-12 19:05:36,829 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2024-09-12 19:05:36,830 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2024-09-12 19:05:36,830 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2024-09-12 19:05:36,831 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2024-09-12 19:05:36,831 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2024-09-12 19:05:36,831 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2024-09-12 19:05:36,831 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2024-09-12 19:05:36,832 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2024-09-12 19:05:36,832 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2024-09-12 19:05:36,832 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2024-09-12 19:05:36,832 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2024-09-12 19:05:36,832 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2024-09-12 19:05:36,832 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2024-09-12 19:05:36,832 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2024-09-12 19:05:36,833 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2024-09-12 19:05:36,833 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2024-09-12 19:05:36,833 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2024-09-12 19:05:36,833 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2024-09-12 19:05:36,833 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2024-09-12 19:05:36,833 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2024-09-12 19:05:36,833 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2024-09-12 19:05:36,833 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2024-09-12 19:05:36,833 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2024-09-12 19:05:36,834 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 25 remaining) [2024-09-12 19:05:36,851 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 19:05:37,034 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:37,037 INFO L408 BasicCegarLoop]: Path program histogram: [1, 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 19:05:37,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 19:05:38,476 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 19:05:38,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 07:05:38 BoogieIcfgContainer [2024-09-12 19:05:38,493 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 19:05:38,493 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 19:05:38,493 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 19:05:38,494 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 19:05:38,494 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:05:19" (3/4) ... [2024-09-12 19:05:38,496 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 19:05:38,499 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 19:05:38,500 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-09-12 19:05:38,500 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 19:05:38,500 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 19:05:38,504 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-09-12 19:05:38,504 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-09-12 19:05:38,504 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 19:05:38,505 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 19:05:38,598 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 19:05:38,598 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 19:05:38,598 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 19:05:38,599 INFO L158 Benchmark]: Toolchain (without parser) took 20251.24ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 53.8MB in the beginning and 55.8MB in the end (delta: -2.0MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2024-09-12 19:05:38,599 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory is still 26.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:05:38,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.05ms. Allocated memory is still 79.7MB. Free memory was 53.5MB in the beginning and 41.9MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-12 19:05:38,599 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.76ms. Allocated memory is still 79.7MB. Free memory was 41.9MB in the beginning and 40.9MB in the end (delta: 914.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:05:38,600 INFO L158 Benchmark]: Boogie Preprocessor took 50.17ms. Allocated memory is still 79.7MB. Free memory was 40.9MB in the beginning and 39.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:05:38,600 INFO L158 Benchmark]: RCFGBuilder took 547.32ms. Allocated memory is still 79.7MB. Free memory was 39.2MB in the beginning and 48.2MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-12 19:05:38,600 INFO L158 Benchmark]: TraceAbstraction took 19252.17ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 47.4MB in the beginning and 61.1MB in the end (delta: -13.7MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2024-09-12 19:05:38,601 INFO L158 Benchmark]: Witness Printer took 105.23ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 55.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-12 19:05:38,602 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory is still 26.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.05ms. Allocated memory is still 79.7MB. Free memory was 53.5MB in the beginning and 41.9MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.76ms. Allocated memory is still 79.7MB. Free memory was 41.9MB in the beginning and 40.9MB in the end (delta: 914.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.17ms. Allocated memory is still 79.7MB. Free memory was 40.9MB in the beginning and 39.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 547.32ms. Allocated memory is still 79.7MB. Free memory was 39.2MB in the beginning and 48.2MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 19252.17ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 47.4MB in the beginning and 61.1MB in the end (delta: -13.7MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. * Witness Printer took 105.23ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 55.8MB in the end (delta: 5.3MB). 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: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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, 77 locations, 25 error locations. Started 1 CEGAR loops. OverallTime: 17.7s, OverallIterations: 25, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 664 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 648 mSDsluCounter, 3513 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2386 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3096 IncrementalHoareTripleChecker+Invalid, 3150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 1127 mSDtfsCounter, 3096 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1565 GetRequests, 1428 SyntacticMatches, 1 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=21, InterpolantAutomatonStates: 139, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 25 MinimizatonAttempts, 63 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 2145 NumberOfCodeBlocks, 2145 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 2031 ConstructedInterpolants, 0 QuantifiedInterpolants, 6789 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1816 ConjunctsInSsa, 154 ConjunctsInUnsatCore, 38 InterpolantComputations, 16 PerfectInterpolantSequences, 1014/1196 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 25 specifications checked. All of them hold - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((((z == y) && (1 <= k)) && (k <= 2)) && (x == 1)) && (z <= 2)) && (1 <= z)) && (c == 1)) || (((((((1 <= k) && (k <= 2)) && (c == 2)) && (z <= 2)) && (1 <= z)) && (((long long) z * z) == y)) && (x == ((long long) z + 1)))) - ProcedureContractResult [Line: 12]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (\old(cond) != 0) - ProcedureContractResult [Line: 15]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (\old(cond) != 0) Ensures: (\old(cond) != 0) RESULT: Ultimate proved your program to be correct! [2024-09-12 19:05:38,626 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