./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd3-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/egcd3-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 bda512f5ab4e84c08e80fd02a1c07c8fba5ca60aa45d55edfde2cc268dd1288e --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 18:54:38,774 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:54:38,861 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:54:38,870 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:54:38,871 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:54:38,901 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:54:38,903 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:54:38,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:54:38,904 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:54:38,905 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:54:38,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:54:38,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:54:38,909 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:54:38,910 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:54:38,910 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:54:38,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:54:38,911 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:54:38,911 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:54:38,911 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:54:38,911 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:54:38,912 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:54:38,916 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:54:38,916 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:54:38,916 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:54:38,917 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:54:38,917 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:54:38,917 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:54:38,917 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:54:38,918 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:54:38,918 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:54:38,918 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:54:38,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:54:38,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:54:38,919 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:54:38,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:54:38,919 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:54:38,920 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:54:38,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:54:38,920 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:54:38,920 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:54:38,920 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:54:38,921 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:54:38,922 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bda512f5ab4e84c08e80fd02a1c07c8fba5ca60aa45d55edfde2cc268dd1288e Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:54:39,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:54:39,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:54:39,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:54:39,254 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:54:39,254 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:54:39,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c [2024-09-12 18:54:40,833 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:54:41,015 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:54:41,016 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound2.c [2024-09-12 18:54:41,023 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/52b4a01eb/1e57b4567e3a408e9d29ee35ed64aea8/FLAG8e6838089 [2024-09-12 18:54:41,034 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/52b4a01eb/1e57b4567e3a408e9d29ee35ed64aea8 [2024-09-12 18:54:41,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:54:41,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:54:41,037 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:54:41,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:54:41,042 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:54:41,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:54:41" (1/1) ... [2024-09-12 18:54:41,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c4a3145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:54:41, skipping insertion in model container [2024-09-12 18:54:41,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:54:41" (1/1) ... [2024-09-12 18:54:41,066 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:54:41,211 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/egcd3-ll_valuebound2.c[490,503] [2024-09-12 18:54:41,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:54:41,257 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:54:41,275 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/egcd3-ll_valuebound2.c[490,503] [2024-09-12 18:54:41,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:54:41,309 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:54:41,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:54:41 WrapperNode [2024-09-12 18:54:41,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:54:41,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:54:41,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:54:41,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:54:41,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:54:41" (1/1) ... [2024-09-12 18:54:41,325 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:54:41" (1/1) ... [2024-09-12 18:54:41,331 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:54:41,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:54:41,333 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:54:41,333 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:54:41,333 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:54:41,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:54:41" (1/1) ... [2024-09-12 18:54:41,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:54:41" (1/1) ... [2024-09-12 18:54:41,349 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:54:41" (1/1) ... [2024-09-12 18:54:41,369 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 18:54:41,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:54:41" (1/1) ... [2024-09-12 18:54:41,370 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:54:41" (1/1) ... [2024-09-12 18:54:41,377 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:54:41" (1/1) ... [2024-09-12 18:54:41,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:54:41" (1/1) ... [2024-09-12 18:54:41,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:54:41" (1/1) ... [2024-09-12 18:54:41,387 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:54:41" (1/1) ... [2024-09-12 18:54:41,392 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:54:41,393 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:54:41,393 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:54:41,393 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:54:41,394 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:54:41" (1/1) ... [2024-09-12 18:54:41,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:54:41,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:41,427 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 18:54:41,431 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 18:54:41,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:54:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:54:41,486 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:54:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:54:41,486 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:54:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:54:41,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:54:41,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:54:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:54:41,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:54:41,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:54:41,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:54:41,550 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:54:41,552 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:54:42,150 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2024-09-12 18:54:42,151 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:54:42,178 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:54:42,180 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-12 18:54:42,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:54:42 BoogieIcfgContainer [2024-09-12 18:54:42,181 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:54:42,184 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:54:42,184 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:54:42,187 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:54:42,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:54:41" (1/3) ... [2024-09-12 18:54:42,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42132bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:54:42, skipping insertion in model container [2024-09-12 18:54:42,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:54:41" (2/3) ... [2024-09-12 18:54:42,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42132bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:54:42, skipping insertion in model container [2024-09-12 18:54:42,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:54:42" (3/3) ... [2024-09-12 18:54:42,192 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound2.c [2024-09-12 18:54:42,207 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:54:42,208 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 51 error locations. [2024-09-12 18:54:42,268 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:54:42,273 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;@215c2476, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:54:42,273 INFO L337 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-09-12 18:54:42,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 70 states have (on average 1.8857142857142857) internal successors, (132), 121 states have internal predecessors, (132), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 18:54:42,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 18:54:42,282 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:42,282 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 18:54:42,283 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:42,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:42,287 INFO L85 PathProgramCache]: Analyzing trace with hash 150372857, now seen corresponding path program 1 times [2024-09-12 18:54:42,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:42,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786784490] [2024-09-12 18:54:42,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:42,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:42,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:54:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:42,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:54:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:42,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:54:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:42,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:54:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:42,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:54:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:42,461 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 18:54:42,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:42,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786784490] [2024-09-12 18:54:42,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786784490] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:42,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:42,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:54:42,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589275339] [2024-09-12 18:54:42,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:42,473 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:54:42,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:42,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:54:42,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:54:42,515 INFO L87 Difference]: Start difference. First operand has 137 states, 70 states have (on average 1.8857142857142857) internal successors, (132), 121 states have internal predecessors, (132), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) 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 18:54:42,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:42,564 INFO L93 Difference]: Finished difference Result 268 states and 310 transitions. [2024-09-12 18:54:42,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:54:42,567 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 18:54:42,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:42,579 INFO L225 Difference]: With dead ends: 268 [2024-09-12 18:54:42,579 INFO L226 Difference]: Without dead ends: 133 [2024-09-12 18:54:42,585 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 18:54:42,591 INFO L434 NwaCegarLoop]: 144 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, 144 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 18:54:42,592 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:54:42,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-09-12 18:54:42,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-09-12 18:54:42,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 68 states have (on average 1.7941176470588236) internal successors, (122), 119 states have internal predecessors, (122), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:54:42,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 142 transitions. [2024-09-12 18:54:42,650 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 142 transitions. Word has length 29 [2024-09-12 18:54:42,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:42,651 INFO L474 AbstractCegarLoop]: Abstraction has 133 states and 142 transitions. [2024-09-12 18:54:42,651 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 18:54:42,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:42,652 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 142 transitions. [2024-09-12 18:54:42,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 18:54:42,656 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:42,656 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 18:54:42,657 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:54:42,657 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:42,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:42,659 INFO L85 PathProgramCache]: Analyzing trace with hash -994139042, now seen corresponding path program 1 times [2024-09-12 18:54:42,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:42,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535075281] [2024-09-12 18:54:42,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:42,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:42,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:54:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:42,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:54:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:42,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:54:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:42,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:54:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:42,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:54:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:42,985 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:54:42,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:42,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535075281] [2024-09-12 18:54:42,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535075281] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:42,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:42,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:54:42,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096247435] [2024-09-12 18:54:42,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:42,989 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:54:42,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:42,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:54:42,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:54:42,993 INFO L87 Difference]: Start difference. First operand 133 states and 142 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:54:43,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:43,406 INFO L93 Difference]: Finished difference Result 229 states and 250 transitions. [2024-09-12 18:54:43,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:54:43,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 30 [2024-09-12 18:54:43,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:43,410 INFO L225 Difference]: With dead ends: 229 [2024-09-12 18:54:43,412 INFO L226 Difference]: Without dead ends: 194 [2024-09-12 18:54:43,413 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:54:43,414 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 209 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:43,415 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 354 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:54:43,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-12 18:54:43,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 135. [2024-09-12 18:54:43,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 70 states have (on average 1.7714285714285714) internal successors, (124), 121 states have internal predecessors, (124), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:54:43,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 144 transitions. [2024-09-12 18:54:43,448 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 144 transitions. Word has length 30 [2024-09-12 18:54:43,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:43,451 INFO L474 AbstractCegarLoop]: Abstraction has 135 states and 144 transitions. [2024-09-12 18:54:43,452 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:54:43,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:43,452 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 144 transitions. [2024-09-12 18:54:43,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 18:54:43,453 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:43,453 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 18:54:43,453 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:54:43,454 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:43,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:43,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1697009532, now seen corresponding path program 1 times [2024-09-12 18:54:43,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:43,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013509051] [2024-09-12 18:54:43,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:43,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:43,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [871005866] [2024-09-12 18:54:43,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:43,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:43,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:43,488 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 18:54:43,490 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 18:54:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:43,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:54:43,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:43,577 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 18:54:43,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:54:43,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:43,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013509051] [2024-09-12 18:54:43,578 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:43,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871005866] [2024-09-12 18:54:43,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871005866] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:43,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:43,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:54:43,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163514024] [2024-09-12 18:54:43,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:43,582 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:54:43,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:43,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:54:43,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:54:43,583 INFO L87 Difference]: Start difference. First operand 135 states and 144 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 18:54:43,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:43,857 INFO L93 Difference]: Finished difference Result 204 states and 223 transitions. [2024-09-12 18:54:43,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:54:43,858 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 18:54:43,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:43,860 INFO L225 Difference]: With dead ends: 204 [2024-09-12 18:54:43,862 INFO L226 Difference]: Without dead ends: 200 [2024-09-12 18:54:43,863 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 18:54:43,864 INFO L434 NwaCegarLoop]: 128 mSDtfsCounter, 59 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:43,864 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 234 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:54:43,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-09-12 18:54:43,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 174. [2024-09-12 18:54:43,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 105 states have (on average 1.7809523809523808) internal successors, (187), 156 states have internal predecessors, (187), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:54:43,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 215 transitions. [2024-09-12 18:54:43,902 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 215 transitions. Word has length 33 [2024-09-12 18:54:43,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:43,903 INFO L474 AbstractCegarLoop]: Abstraction has 174 states and 215 transitions. [2024-09-12 18:54:43,903 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 18:54:43,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:43,903 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 215 transitions. [2024-09-12 18:54:43,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 18:54:43,906 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:43,907 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 18:54:43,925 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 18:54:44,107 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:44,108 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:44,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:44,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1697009150, now seen corresponding path program 1 times [2024-09-12 18:54:44,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:44,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925617405] [2024-09-12 18:54:44,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:44,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:44,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [663110557] [2024-09-12 18:54:44,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:44,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:44,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:44,136 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 18:54:44,137 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 18:54:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:44,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:54:44,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:44,207 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 18:54:44,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:54:44,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:44,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925617405] [2024-09-12 18:54:44,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:44,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663110557] [2024-09-12 18:54:44,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663110557] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:44,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:44,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:54:44,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296131959] [2024-09-12 18:54:44,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:44,210 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:54:44,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:44,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:54:44,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:54:44,211 INFO L87 Difference]: Start difference. First operand 174 states and 215 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 18:54:44,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:44,400 INFO L93 Difference]: Finished difference Result 202 states and 219 transitions. [2024-09-12 18:54:44,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:54:44,401 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 18:54:44,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:44,403 INFO L225 Difference]: With dead ends: 202 [2024-09-12 18:54:44,403 INFO L226 Difference]: Without dead ends: 200 [2024-09-12 18:54:44,403 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 18:54:44,404 INFO L434 NwaCegarLoop]: 134 mSDtfsCounter, 59 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:44,405 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 252 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:54:44,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-09-12 18:54:44,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 174. [2024-09-12 18:54:44,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 105 states have (on average 1.7619047619047619) internal successors, (185), 156 states have internal predecessors, (185), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:54:44,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 213 transitions. [2024-09-12 18:54:44,427 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 213 transitions. Word has length 33 [2024-09-12 18:54:44,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:44,428 INFO L474 AbstractCegarLoop]: Abstraction has 174 states and 213 transitions. [2024-09-12 18:54:44,428 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 18:54:44,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:44,428 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 213 transitions. [2024-09-12 18:54:44,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 18:54:44,429 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:44,429 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] [2024-09-12 18:54:44,446 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 18:54:44,630 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:44,630 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:44,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:44,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1261407042, now seen corresponding path program 1 times [2024-09-12 18:54:44,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:44,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148974152] [2024-09-12 18:54:44,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:44,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:44,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:54:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:44,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:54:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:44,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:54:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:44,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:54:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:44,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:54:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:44,782 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 18:54:44,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:44,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148974152] [2024-09-12 18:54:44,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148974152] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:44,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:44,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:54:44,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203736622] [2024-09-12 18:54:44,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:44,785 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:54:44,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:44,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:54:44,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:54:44,786 INFO L87 Difference]: Start difference. First operand 174 states and 213 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 18:54:45,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:45,509 INFO L93 Difference]: Finished difference Result 197 states and 217 transitions. [2024-09-12 18:54:45,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:54:45,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 35 [2024-09-12 18:54:45,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:45,511 INFO L225 Difference]: With dead ends: 197 [2024-09-12 18:54:45,511 INFO L226 Difference]: Without dead ends: 196 [2024-09-12 18:54:45,512 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:54:45,512 INFO L434 NwaCegarLoop]: 129 mSDtfsCounter, 53 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:45,513 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 441 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:54:45,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-09-12 18:54:45,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 175. [2024-09-12 18:54:45,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 106 states have (on average 1.7547169811320755) internal successors, (186), 157 states have internal predecessors, (186), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:54:45,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 214 transitions. [2024-09-12 18:54:45,534 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 214 transitions. Word has length 35 [2024-09-12 18:54:45,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:45,535 INFO L474 AbstractCegarLoop]: Abstraction has 175 states and 214 transitions. [2024-09-12 18:54:45,535 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 18:54:45,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:45,535 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 214 transitions. [2024-09-12 18:54:45,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 18:54:45,536 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:45,536 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] [2024-09-12 18:54:45,536 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 18:54:45,537 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:45,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:45,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1261776448, now seen corresponding path program 1 times [2024-09-12 18:54:45,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:45,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914477564] [2024-09-12 18:54:45,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:45,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:45,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [448681726] [2024-09-12 18:54:45,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:45,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:45,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:45,552 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 18:54:45,556 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 18:54:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:45,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:54:45,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:45,680 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 18:54:45,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:54:45,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:45,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914477564] [2024-09-12 18:54:45,681 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:45,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448681726] [2024-09-12 18:54:45,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448681726] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:45,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:45,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:54:45,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901034069] [2024-09-12 18:54:45,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:45,682 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:54:45,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:45,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:54:45,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:54:45,683 INFO L87 Difference]: Start difference. First operand 175 states and 214 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 18:54:46,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:46,102 INFO L93 Difference]: Finished difference Result 194 states and 214 transitions. [2024-09-12 18:54:46,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:54:46,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 35 [2024-09-12 18:54:46,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:46,105 INFO L225 Difference]: With dead ends: 194 [2024-09-12 18:54:46,105 INFO L226 Difference]: Without dead ends: 193 [2024-09-12 18:54:46,106 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 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 18:54:46,109 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 140 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:46,109 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 217 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:54:46,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-09-12 18:54:46,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 175. [2024-09-12 18:54:46,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 106 states have (on average 1.7452830188679245) internal successors, (185), 157 states have internal predecessors, (185), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:54:46,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 213 transitions. [2024-09-12 18:54:46,134 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 213 transitions. Word has length 35 [2024-09-12 18:54:46,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:46,134 INFO L474 AbstractCegarLoop]: Abstraction has 175 states and 213 transitions. [2024-09-12 18:54:46,134 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 18:54:46,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:46,135 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 213 transitions. [2024-09-12 18:54:46,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 18:54:46,138 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:46,138 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] [2024-09-12 18:54:46,155 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 18:54:46,338 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:54:46,339 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:46,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:46,339 INFO L85 PathProgramCache]: Analyzing trace with hash -448912472, now seen corresponding path program 1 times [2024-09-12 18:54:46,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:46,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002061264] [2024-09-12 18:54:46,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:46,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:46,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1864319327] [2024-09-12 18:54:46,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:46,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:46,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:46,353 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 18:54:46,356 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 18:54:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:46,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:54:46,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:46,480 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 18:54:46,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:54:46,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:46,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002061264] [2024-09-12 18:54:46,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:46,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864319327] [2024-09-12 18:54:46,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864319327] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:46,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:46,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:54:46,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356950241] [2024-09-12 18:54:46,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:46,485 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:54:46,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:46,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:54:46,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:54:46,486 INFO L87 Difference]: Start difference. First operand 175 states and 213 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (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 18:54:46,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:46,823 INFO L93 Difference]: Finished difference Result 195 states and 215 transitions. [2024-09-12 18:54:46,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:54:46,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (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 36 [2024-09-12 18:54:46,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:46,825 INFO L225 Difference]: With dead ends: 195 [2024-09-12 18:54:46,825 INFO L226 Difference]: Without dead ends: 194 [2024-09-12 18:54:46,825 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 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 18:54:46,826 INFO L434 NwaCegarLoop]: 123 mSDtfsCounter, 53 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:46,826 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 308 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:54:46,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-12 18:54:46,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 176. [2024-09-12 18:54:46,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 107 states have (on average 1.7383177570093458) internal successors, (186), 158 states have internal predecessors, (186), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:54:46,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 214 transitions. [2024-09-12 18:54:46,845 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 214 transitions. Word has length 36 [2024-09-12 18:54:46,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:46,846 INFO L474 AbstractCegarLoop]: Abstraction has 176 states and 214 transitions. [2024-09-12 18:54:46,846 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (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 18:54:46,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:46,846 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 214 transitions. [2024-09-12 18:54:46,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 18:54:46,847 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:46,847 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] [2024-09-12 18:54:46,864 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 18:54:47,051 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:47,052 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:47,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:47,052 INFO L85 PathProgramCache]: Analyzing trace with hash -460364130, now seen corresponding path program 1 times [2024-09-12 18:54:47,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:47,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842773919] [2024-09-12 18:54:47,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:47,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:47,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530559317] [2024-09-12 18:54:47,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:47,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:47,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:47,068 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 18:54:47,069 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 18:54:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:47,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:54:47,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:47,154 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 18:54:47,155 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:54:47,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:47,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842773919] [2024-09-12 18:54:47,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:47,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530559317] [2024-09-12 18:54:47,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530559317] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:47,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:47,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:54:47,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428778910] [2024-09-12 18:54:47,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:47,156 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:54:47,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:47,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:54:47,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:54:47,158 INFO L87 Difference]: Start difference. First operand 176 states and 214 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 18:54:47,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:47,349 INFO L93 Difference]: Finished difference Result 195 states and 214 transitions. [2024-09-12 18:54:47,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:54:47,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 36 [2024-09-12 18:54:47,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:47,351 INFO L225 Difference]: With dead ends: 195 [2024-09-12 18:54:47,351 INFO L226 Difference]: Without dead ends: 194 [2024-09-12 18:54:47,351 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 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 18:54:47,352 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 185 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:47,352 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 197 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:54:47,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-12 18:54:47,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 176. [2024-09-12 18:54:47,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 107 states have (on average 1.7289719626168225) internal successors, (185), 158 states have internal predecessors, (185), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:54:47,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 213 transitions. [2024-09-12 18:54:47,377 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 213 transitions. Word has length 36 [2024-09-12 18:54:47,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:47,378 INFO L474 AbstractCegarLoop]: Abstraction has 176 states and 213 transitions. [2024-09-12 18:54:47,378 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 18:54:47,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:47,379 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 213 transitions. [2024-09-12 18:54:47,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 18:54:47,380 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:47,380 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] [2024-09-12 18:54:47,394 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 18:54:47,581 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-12 18:54:47,581 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:47,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:47,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1031384576, now seen corresponding path program 1 times [2024-09-12 18:54:47,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:47,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922314491] [2024-09-12 18:54:47,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:47,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:47,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1425485379] [2024-09-12 18:54:47,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:47,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:47,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:47,594 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 18:54:47,597 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 18:54:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:47,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:54:47,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:47,664 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 18:54:47,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:54:47,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:47,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922314491] [2024-09-12 18:54:47,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:47,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425485379] [2024-09-12 18:54:47,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425485379] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:47,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:47,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:54:47,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388672764] [2024-09-12 18:54:47,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:47,665 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:54:47,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:47,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:54:47,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:54:47,666 INFO L87 Difference]: Start difference. First operand 176 states and 213 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 18:54:47,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:47,791 INFO L93 Difference]: Finished difference Result 290 states and 369 transitions. [2024-09-12 18:54:47,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:54:47,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 37 [2024-09-12 18:54:47,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:47,794 INFO L225 Difference]: With dead ends: 290 [2024-09-12 18:54:47,794 INFO L226 Difference]: Without dead ends: 284 [2024-09-12 18:54:47,795 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 18:54:47,795 INFO L434 NwaCegarLoop]: 119 mSDtfsCounter, 56 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:47,795 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 231 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:54:47,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-09-12 18:54:47,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 252. [2024-09-12 18:54:47,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 175 states have (on average 1.697142857142857) internal successors, (297), 226 states have internal predecessors, (297), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:54:47,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 341 transitions. [2024-09-12 18:54:47,831 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 341 transitions. Word has length 37 [2024-09-12 18:54:47,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:47,831 INFO L474 AbstractCegarLoop]: Abstraction has 252 states and 341 transitions. [2024-09-12 18:54:47,831 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 18:54:47,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:47,832 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 341 transitions. [2024-09-12 18:54:47,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 18:54:47,832 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:47,832 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] [2024-09-12 18:54:47,849 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 18:54:48,036 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:48,037 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:48,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:48,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1386386046, now seen corresponding path program 1 times [2024-09-12 18:54:48,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:48,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846841507] [2024-09-12 18:54:48,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:48,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:48,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1435307656] [2024-09-12 18:54:48,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:48,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:48,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:48,053 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 18:54:48,054 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 18:54:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:48,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:54:48,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:48,124 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 18:54:48,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:54:48,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:48,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846841507] [2024-09-12 18:54:48,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:48,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435307656] [2024-09-12 18:54:48,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435307656] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:48,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:48,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:54:48,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973741] [2024-09-12 18:54:48,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:48,125 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:54:48,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:48,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:54:48,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:54:48,126 INFO L87 Difference]: Start difference. First operand 252 states and 341 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 18:54:48,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:48,691 INFO L93 Difference]: Finished difference Result 277 states and 345 transitions. [2024-09-12 18:54:48,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:54:48,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 37 [2024-09-12 18:54:48,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:48,693 INFO L225 Difference]: With dead ends: 277 [2024-09-12 18:54:48,693 INFO L226 Difference]: Without dead ends: 276 [2024-09-12 18:54:48,694 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 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 18:54:48,694 INFO L434 NwaCegarLoop]: 132 mSDtfsCounter, 57 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:48,694 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 343 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:54:48,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-09-12 18:54:48,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 252. [2024-09-12 18:54:48,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 175 states have (on average 1.6857142857142857) internal successors, (295), 226 states have internal predecessors, (295), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:54:48,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 339 transitions. [2024-09-12 18:54:48,728 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 339 transitions. Word has length 37 [2024-09-12 18:54:48,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:48,728 INFO L474 AbstractCegarLoop]: Abstraction has 252 states and 339 transitions. [2024-09-12 18:54:48,728 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 18:54:48,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:48,729 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 339 transitions. [2024-09-12 18:54:48,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 18:54:48,729 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:48,729 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] [2024-09-12 18:54:48,746 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 18:54:48,933 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:48,934 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:48,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:48,934 INFO L85 PathProgramCache]: Analyzing trace with hash -28294368, now seen corresponding path program 1 times [2024-09-12 18:54:48,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:48,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298240590] [2024-09-12 18:54:48,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:48,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:48,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1047180149] [2024-09-12 18:54:48,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:48,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:48,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:48,957 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 18:54:48,960 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 18:54:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:49,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:54:49,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:49,079 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 18:54:49,080 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:54:49,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:49,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298240590] [2024-09-12 18:54:49,080 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:49,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047180149] [2024-09-12 18:54:49,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047180149] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:49,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:49,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:54:49,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476122745] [2024-09-12 18:54:49,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:49,081 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:54:49,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:49,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:54:49,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:54:49,082 INFO L87 Difference]: Start difference. First operand 252 states and 339 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 18:54:49,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:49,377 INFO L93 Difference]: Finished difference Result 278 states and 344 transitions. [2024-09-12 18:54:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:54:49,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 38 [2024-09-12 18:54:49,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:49,379 INFO L225 Difference]: With dead ends: 278 [2024-09-12 18:54:49,379 INFO L226 Difference]: Without dead ends: 277 [2024-09-12 18:54:49,380 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:54:49,380 INFO L434 NwaCegarLoop]: 134 mSDtfsCounter, 100 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:49,381 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 261 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:54:49,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-09-12 18:54:49,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 252. [2024-09-12 18:54:49,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 175 states have (on average 1.6742857142857144) internal successors, (293), 226 states have internal predecessors, (293), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:54:49,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 337 transitions. [2024-09-12 18:54:49,421 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 337 transitions. Word has length 38 [2024-09-12 18:54:49,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:49,421 INFO L474 AbstractCegarLoop]: Abstraction has 252 states and 337 transitions. [2024-09-12 18:54:49,421 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 18:54:49,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:49,421 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 337 transitions. [2024-09-12 18:54:49,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 18:54:49,422 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:49,422 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] [2024-09-12 18:54:49,439 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 18:54:49,622 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:49,623 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:49,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:49,623 INFO L85 PathProgramCache]: Analyzing trace with hash 976873282, now seen corresponding path program 1 times [2024-09-12 18:54:49,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:49,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736542174] [2024-09-12 18:54:49,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:49,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:49,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:54:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:49,827 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:54:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:49,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:54:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:49,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:54:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:49,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:54:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:49,836 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 18:54:49,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:49,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736542174] [2024-09-12 18:54:49,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736542174] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:49,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:49,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:54:49,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398210437] [2024-09-12 18:54:49,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:49,838 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:54:49,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:49,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:54:49,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:54:49,839 INFO L87 Difference]: Start difference. First operand 252 states and 337 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 18:54:50,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:50,356 INFO L93 Difference]: Finished difference Result 281 states and 347 transitions. [2024-09-12 18:54:50,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:54:50,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 39 [2024-09-12 18:54:50,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:50,359 INFO L225 Difference]: With dead ends: 281 [2024-09-12 18:54:50,359 INFO L226 Difference]: Without dead ends: 280 [2024-09-12 18:54:50,359 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:54:50,360 INFO L434 NwaCegarLoop]: 133 mSDtfsCounter, 55 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:50,360 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 465 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:54:50,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-09-12 18:54:50,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 257. [2024-09-12 18:54:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 180 states have (on average 1.6666666666666667) internal successors, (300), 231 states have internal predecessors, (300), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:54:50,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 344 transitions. [2024-09-12 18:54:50,399 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 344 transitions. Word has length 39 [2024-09-12 18:54:50,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:50,400 INFO L474 AbstractCegarLoop]: Abstraction has 257 states and 344 transitions. [2024-09-12 18:54:50,401 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 18:54:50,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:50,401 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 344 transitions. [2024-09-12 18:54:50,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 18:54:50,401 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:50,401 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 18:54:50,402 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-12 18:54:50,402 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:50,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:50,402 INFO L85 PathProgramCache]: Analyzing trace with hash 218300844, now seen corresponding path program 1 times [2024-09-12 18:54:50,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:50,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424450902] [2024-09-12 18:54:50,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:50,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:50,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1155411293] [2024-09-12 18:54:50,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:50,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:50,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:50,421 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 18:54:50,424 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 18:54:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:50,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:54:50,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:50,517 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 18:54:50,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:54:50,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:50,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424450902] [2024-09-12 18:54:50,518 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:50,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155411293] [2024-09-12 18:54:50,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155411293] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:50,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:50,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:54:50,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889589028] [2024-09-12 18:54:50,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:50,519 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:54:50,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:50,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:54:50,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:54:50,520 INFO L87 Difference]: Start difference. First operand 257 states and 344 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 18:54:50,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:50,909 INFO L93 Difference]: Finished difference Result 298 states and 355 transitions. [2024-09-12 18:54:50,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:54:50,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 40 [2024-09-12 18:54:50,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:50,911 INFO L225 Difference]: With dead ends: 298 [2024-09-12 18:54:50,911 INFO L226 Difference]: Without dead ends: 297 [2024-09-12 18:54:50,911 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:54:50,912 INFO L434 NwaCegarLoop]: 119 mSDtfsCounter, 108 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:50,912 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 465 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:54:50,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-09-12 18:54:50,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 259. [2024-09-12 18:54:50,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 182 states have (on average 1.6593406593406594) internal successors, (302), 233 states have internal predecessors, (302), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:54:50,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 346 transitions. [2024-09-12 18:54:50,954 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 346 transitions. Word has length 40 [2024-09-12 18:54:50,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:50,954 INFO L474 AbstractCegarLoop]: Abstraction has 259 states and 346 transitions. [2024-09-12 18:54:50,955 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 18:54:50,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:50,955 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 346 transitions. [2024-09-12 18:54:50,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 18:54:50,956 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:50,956 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] [2024-09-12 18:54:50,972 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 18:54:51,156 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 18:54:51,157 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:51,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:51,157 INFO L85 PathProgramCache]: Analyzing trace with hash 145118284, now seen corresponding path program 1 times [2024-09-12 18:54:51,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:51,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354759219] [2024-09-12 18:54:51,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:51,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:51,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1775434799] [2024-09-12 18:54:51,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:51,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:51,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:51,168 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 18:54:51,170 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 18:54:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:51,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:54:51,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:51,306 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 18:54:51,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:54:51,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:51,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354759219] [2024-09-12 18:54:51,307 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:51,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775434799] [2024-09-12 18:54:51,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775434799] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:51,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:51,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:54:51,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426447671] [2024-09-12 18:54:51,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:51,308 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:54:51,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:51,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:54:51,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:54:51,308 INFO L87 Difference]: Start difference. First operand 259 states and 346 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 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 18:54:51,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:51,780 INFO L93 Difference]: Finished difference Result 283 states and 351 transitions. [2024-09-12 18:54:51,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:54:51,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 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 42 [2024-09-12 18:54:51,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:51,782 INFO L225 Difference]: With dead ends: 283 [2024-09-12 18:54:51,783 INFO L226 Difference]: Without dead ends: 281 [2024-09-12 18:54:51,783 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 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 18:54:51,783 INFO L434 NwaCegarLoop]: 124 mSDtfsCounter, 46 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:51,783 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 457 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:54:51,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-09-12 18:54:51,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 263. [2024-09-12 18:54:51,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 185 states have (on average 1.6486486486486487) internal successors, (305), 236 states have internal predecessors, (305), 23 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:54:51,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 349 transitions. [2024-09-12 18:54:51,817 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 349 transitions. Word has length 42 [2024-09-12 18:54:51,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:51,817 INFO L474 AbstractCegarLoop]: Abstraction has 263 states and 349 transitions. [2024-09-12 18:54:51,817 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 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 18:54:51,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:51,818 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 349 transitions. [2024-09-12 18:54:51,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 18:54:51,818 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:51,819 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] [2024-09-12 18:54:51,839 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 18:54:52,019 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 18:54:52,020 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:52,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:52,020 INFO L85 PathProgramCache]: Analyzing trace with hash 820015268, now seen corresponding path program 1 times [2024-09-12 18:54:52,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:52,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118053336] [2024-09-12 18:54:52,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:52,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:52,102 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:54:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:52,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:54:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:52,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:54:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:52,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:54:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:52,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:54:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:52,137 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:54:52,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:52,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118053336] [2024-09-12 18:54:52,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118053336] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:52,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650155505] [2024-09-12 18:54:52,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:52,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:52,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:52,140 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 18:54:52,142 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 18:54:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:52,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:54:52,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:52,213 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:54:52,214 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:54:52,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650155505] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:54:52,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:54:52,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 9 [2024-09-12 18:54:52,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370130533] [2024-09-12 18:54:52,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:52,296 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:54:52,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:52,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:54:52,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:54:52,297 INFO L87 Difference]: Start difference. First operand 263 states and 349 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 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 18:54:53,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:53,092 INFO L93 Difference]: Finished difference Result 574 states and 717 transitions. [2024-09-12 18:54:53,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:54:53,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 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 43 [2024-09-12 18:54:53,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:53,095 INFO L225 Difference]: With dead ends: 574 [2024-09-12 18:54:53,095 INFO L226 Difference]: Without dead ends: 539 [2024-09-12 18:54:53,096 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 91 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:54:53,096 INFO L434 NwaCegarLoop]: 130 mSDtfsCounter, 481 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:53,100 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 743 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:54:53,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-09-12 18:54:53,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 355. [2024-09-12 18:54:53,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 269 states have (on average 1.6988847583643123) internal successors, (457), 320 states have internal predecessors, (457), 31 states have call successors, (31), 5 states have call predecessors, (31), 4 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:54:53,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 517 transitions. [2024-09-12 18:54:53,151 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 517 transitions. Word has length 43 [2024-09-12 18:54:53,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:53,151 INFO L474 AbstractCegarLoop]: Abstraction has 355 states and 517 transitions. [2024-09-12 18:54:53,151 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 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 18:54:53,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:53,152 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 517 transitions. [2024-09-12 18:54:53,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 18:54:53,152 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:53,152 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] [2024-09-12 18:54:53,169 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 18:54:53,356 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 18:54:53,357 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:53,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:53,357 INFO L85 PathProgramCache]: Analyzing trace with hash -222864919, now seen corresponding path program 1 times [2024-09-12 18:54:53,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:53,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514039669] [2024-09-12 18:54:53,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:53,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:53,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1579567519] [2024-09-12 18:54:53,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:53,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:53,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:53,371 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 18:54:53,373 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 18:54:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:53,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:54:53,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:53,462 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 18:54:53,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:54:53,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:53,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514039669] [2024-09-12 18:54:53,463 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:53,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579567519] [2024-09-12 18:54:53,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579567519] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:53,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:53,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:54:53,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697991247] [2024-09-12 18:54:53,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:53,464 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:54:53,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:53,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:54:53,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:54:53,464 INFO L87 Difference]: Start difference. First operand 355 states and 517 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:54:53,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:53,800 INFO L93 Difference]: Finished difference Result 373 states and 519 transitions. [2024-09-12 18:54:53,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:54:53,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 46 [2024-09-12 18:54:53,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:53,803 INFO L225 Difference]: With dead ends: 373 [2024-09-12 18:54:53,803 INFO L226 Difference]: Without dead ends: 372 [2024-09-12 18:54:53,803 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 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 18:54:53,804 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 191 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:53,804 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 191 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:54:53,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-09-12 18:54:53,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 355. [2024-09-12 18:54:53,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 269 states have (on average 1.691449814126394) internal successors, (455), 320 states have internal predecessors, (455), 31 states have call successors, (31), 5 states have call predecessors, (31), 4 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:54:53,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 515 transitions. [2024-09-12 18:54:53,854 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 515 transitions. Word has length 46 [2024-09-12 18:54:53,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:53,854 INFO L474 AbstractCegarLoop]: Abstraction has 355 states and 515 transitions. [2024-09-12 18:54:53,855 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:54:53,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:53,855 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 515 transitions. [2024-09-12 18:54:53,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 18:54:53,855 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:53,855 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:54:53,870 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 18:54:54,056 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 18:54:54,056 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:54,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:54,057 INFO L85 PathProgramCache]: Analyzing trace with hash -700394504, now seen corresponding path program 1 times [2024-09-12 18:54:54,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:54,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440415680] [2024-09-12 18:54:54,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:54,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:54,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1766176693] [2024-09-12 18:54:54,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:54,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:54,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:54,072 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 18:54:54,073 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 18:54:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:54,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:54:54,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:54,245 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:54:54,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:54,504 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:54:54,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:54,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440415680] [2024-09-12 18:54:54,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:54,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766176693] [2024-09-12 18:54:54,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766176693] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:54:54,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:54:54,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2024-09-12 18:54:54,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500887549] [2024-09-12 18:54:54,505 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:54,506 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:54:54,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:54,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:54:54,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:54:54,507 INFO L87 Difference]: Start difference. First operand 355 states and 515 transitions. Second operand has 12 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:54:55,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:55,758 INFO L93 Difference]: Finished difference Result 674 states and 968 transitions. [2024-09-12 18:54:55,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:54:55,758 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 46 [2024-09-12 18:54:55,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:55,762 INFO L225 Difference]: With dead ends: 674 [2024-09-12 18:54:55,762 INFO L226 Difference]: Without dead ends: 671 [2024-09-12 18:54:55,762 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:54:55,763 INFO L434 NwaCegarLoop]: 182 mSDtfsCounter, 736 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:55,763 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [737 Valid, 715 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:54:55,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2024-09-12 18:54:55,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 398. [2024-09-12 18:54:55,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 310 states have (on average 1.667741935483871) internal successors, (517), 361 states have internal predecessors, (517), 33 states have call successors, (33), 5 states have call predecessors, (33), 4 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:54:55,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 581 transitions. [2024-09-12 18:54:55,869 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 581 transitions. Word has length 46 [2024-09-12 18:54:55,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:55,870 INFO L474 AbstractCegarLoop]: Abstraction has 398 states and 581 transitions. [2024-09-12 18:54:55,870 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:54:55,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:55,870 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 581 transitions. [2024-09-12 18:54:55,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 18:54:55,871 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:55,871 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 18:54:55,887 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 18:54:56,074 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 18:54:56,075 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:56,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:56,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1681122210, now seen corresponding path program 1 times [2024-09-12 18:54:56,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:56,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135221651] [2024-09-12 18:54:56,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:56,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:56,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [854883641] [2024-09-12 18:54:56,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:56,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:56,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:56,085 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 18:54:56,089 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 18:54:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:56,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:54:56,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:56,180 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 18:54:56,180 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:54:56,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:56,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135221651] [2024-09-12 18:54:56,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:56,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854883641] [2024-09-12 18:54:56,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854883641] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:56,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:56,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:54:56,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278522790] [2024-09-12 18:54:56,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:56,181 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:54:56,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:56,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:54:56,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:54:56,182 INFO L87 Difference]: Start difference. First operand 398 states and 581 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:54:56,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:56,419 INFO L93 Difference]: Finished difference Result 416 states and 583 transitions. [2024-09-12 18:54:56,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:54:56,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 47 [2024-09-12 18:54:56,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:56,426 INFO L225 Difference]: With dead ends: 416 [2024-09-12 18:54:56,426 INFO L226 Difference]: Without dead ends: 415 [2024-09-12 18:54:56,426 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 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 18:54:56,427 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 143 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 212 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 18:54:56,427 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 212 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:54:56,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-09-12 18:54:56,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 398. [2024-09-12 18:54:56,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 310 states have (on average 1.6612903225806452) internal successors, (515), 361 states have internal predecessors, (515), 33 states have call successors, (33), 5 states have call predecessors, (33), 4 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:54:56,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 579 transitions. [2024-09-12 18:54:56,529 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 579 transitions. Word has length 47 [2024-09-12 18:54:56,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:56,530 INFO L474 AbstractCegarLoop]: Abstraction has 398 states and 579 transitions. [2024-09-12 18:54:56,530 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:54:56,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:56,530 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 579 transitions. [2024-09-12 18:54:56,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 18:54:56,531 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:56,531 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:54:56,546 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 18:54:56,731 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:54:56,732 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:56,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:56,732 INFO L85 PathProgramCache]: Analyzing trace with hash -237393054, now seen corresponding path program 1 times [2024-09-12 18:54:56,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:56,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390599886] [2024-09-12 18:54:56,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:56,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:56,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1825291194] [2024-09-12 18:54:56,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:56,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:56,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:56,742 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 18:54:56,744 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 18:54:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:56,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:54:56,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:56,928 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:54:56,928 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:57,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:57,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390599886] [2024-09-12 18:54:57,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:57,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825291194] [2024-09-12 18:54:57,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825291194] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:57,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:57,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:54:57,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941454290] [2024-09-12 18:54:57,776 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:57,776 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:54:57,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:57,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:54:57,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:54:57,777 INFO L87 Difference]: Start difference. First operand 398 states and 579 transitions. Second operand has 8 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:54:58,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:58,144 INFO L93 Difference]: Finished difference Result 641 states and 931 transitions. [2024-09-12 18:54:58,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:54:58,145 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2024-09-12 18:54:58,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:58,148 INFO L225 Difference]: With dead ends: 641 [2024-09-12 18:54:58,149 INFO L226 Difference]: Without dead ends: 639 [2024-09-12 18:54:58,149 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:54:58,149 INFO L434 NwaCegarLoop]: 96 mSDtfsCounter, 399 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:58,150 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 467 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:54:58,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-09-12 18:54:58,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 563. [2024-09-12 18:54:58,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 457 states have (on average 1.7045951859956237) internal successors, (779), 508 states have internal predecessors, (779), 51 states have call successors, (51), 5 states have call predecessors, (51), 4 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 18:54:58,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 879 transitions. [2024-09-12 18:54:58,305 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 879 transitions. Word has length 47 [2024-09-12 18:54:58,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:58,305 INFO L474 AbstractCegarLoop]: Abstraction has 563 states and 879 transitions. [2024-09-12 18:54:58,305 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:54:58,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:58,306 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 879 transitions. [2024-09-12 18:54:58,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 18:54:58,306 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:58,306 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 18:54:58,327 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 18:54:58,510 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:58,511 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:58,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:58,511 INFO L85 PathProgramCache]: Analyzing trace with hash 575181067, now seen corresponding path program 1 times [2024-09-12 18:54:58,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:58,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684804553] [2024-09-12 18:54:58,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:58,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:58,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1695135254] [2024-09-12 18:54:58,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:58,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:58,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:58,523 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 18:54:58,525 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 18:54:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:58,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:54:58,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:58,593 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 18:54:58,593 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:54:58,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:58,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684804553] [2024-09-12 18:54:58,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:58,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695135254] [2024-09-12 18:54:58,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695135254] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:58,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:54:58,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:54:58,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723178644] [2024-09-12 18:54:58,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:58,594 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:54:58,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:58,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:54:58,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:54:58,595 INFO L87 Difference]: Start difference. First operand 563 states and 879 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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 18:54:59,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:59,167 INFO L93 Difference]: Finished difference Result 591 states and 891 transitions. [2024-09-12 18:54:59,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:54:59,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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 18:54:59,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:59,171 INFO L225 Difference]: With dead ends: 591 [2024-09-12 18:54:59,171 INFO L226 Difference]: Without dead ends: 590 [2024-09-12 18:54:59,172 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 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 18:54:59,174 INFO L434 NwaCegarLoop]: 138 mSDtfsCounter, 57 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:59,175 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 322 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:54:59,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-09-12 18:54:59,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 563. [2024-09-12 18:54:59,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 457 states have (on average 1.700218818380744) internal successors, (777), 508 states have internal predecessors, (777), 51 states have call successors, (51), 5 states have call predecessors, (51), 4 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 18:54:59,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 877 transitions. [2024-09-12 18:54:59,340 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 877 transitions. Word has length 48 [2024-09-12 18:54:59,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:59,340 INFO L474 AbstractCegarLoop]: Abstraction has 563 states and 877 transitions. [2024-09-12 18:54:59,341 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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 18:54:59,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:59,341 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 877 transitions. [2024-09-12 18:54:59,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 18:54:59,342 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:59,342 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:54:59,358 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 18:54:59,546 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:59,547 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:54:59,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:59,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1231119416, now seen corresponding path program 1 times [2024-09-12 18:54:59,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:59,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803603076] [2024-09-12 18:54:59,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:59,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:59,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:54:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:59,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:54:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:59,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:54:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:59,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:54:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:59,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:54:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:59,693 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:54:59,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:59,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803603076] [2024-09-12 18:54:59,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803603076] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:59,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75597475] [2024-09-12 18:54:59,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:59,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:59,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:59,695 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 18:54:59,695 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 18:54:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:59,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:54:59,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:59,766 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:54:59,766 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:54:59,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75597475] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:54:59,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:59,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-09-12 18:54:59,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153932156] [2024-09-12 18:54:59,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:54:59,766 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:54:59,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:59,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:54:59,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:54:59,767 INFO L87 Difference]: Start difference. First operand 563 states and 877 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 18:55:00,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:00,194 INFO L93 Difference]: Finished difference Result 768 states and 1111 transitions. [2024-09-12 18:55:00,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:55:00,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 48 [2024-09-12 18:55:00,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:00,198 INFO L225 Difference]: With dead ends: 768 [2024-09-12 18:55:00,198 INFO L226 Difference]: Without dead ends: 482 [2024-09-12 18:55:00,200 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:55:00,202 INFO L434 NwaCegarLoop]: 177 mSDtfsCounter, 159 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:00,202 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 572 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:55:00,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-09-12 18:55:00,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 357. [2024-09-12 18:55:00,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 271 states have (on average 1.6494464944649447) internal successors, (447), 320 states have internal predecessors, (447), 33 states have call successors, (33), 5 states have call predecessors, (33), 4 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:55:00,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 511 transitions. [2024-09-12 18:55:00,318 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 511 transitions. Word has length 48 [2024-09-12 18:55:00,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:00,319 INFO L474 AbstractCegarLoop]: Abstraction has 357 states and 511 transitions. [2024-09-12 18:55:00,319 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 18:55:00,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:00,319 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 511 transitions. [2024-09-12 18:55:00,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 18:55:00,323 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:00,323 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:00,340 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:00,523 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:00,524 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:00,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:00,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1230750010, now seen corresponding path program 1 times [2024-09-12 18:55:00,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:00,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267290249] [2024-09-12 18:55:00,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:00,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:00,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [879899513] [2024-09-12 18:55:00,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:00,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:00,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:00,547 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:00,553 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 18:55:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:00,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:55:00,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:00,722 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:55:00,723 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:00,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:00,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267290249] [2024-09-12 18:55:00,924 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:00,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879899513] [2024-09-12 18:55:00,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879899513] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:00,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:00,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:55:00,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395526777] [2024-09-12 18:55:00,925 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:00,925 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:55:00,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:00,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:55:00,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:55:00,926 INFO L87 Difference]: Start difference. First operand 357 states and 511 transitions. Second operand has 10 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:55:01,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:01,745 INFO L93 Difference]: Finished difference Result 474 states and 658 transitions. [2024-09-12 18:55:01,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:55:01,746 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 48 [2024-09-12 18:55:01,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:01,749 INFO L225 Difference]: With dead ends: 474 [2024-09-12 18:55:01,749 INFO L226 Difference]: Without dead ends: 473 [2024-09-12 18:55:01,749 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:55:01,750 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 413 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:01,750 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 628 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:55:01,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-09-12 18:55:01,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 436. [2024-09-12 18:55:01,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 341 states have (on average 1.6656891495601174) internal successors, (568), 390 states have internal predecessors, (568), 42 states have call successors, (42), 5 states have call predecessors, (42), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 18:55:01,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 650 transitions. [2024-09-12 18:55:01,883 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 650 transitions. Word has length 48 [2024-09-12 18:55:01,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:01,884 INFO L474 AbstractCegarLoop]: Abstraction has 436 states and 650 transitions. [2024-09-12 18:55:01,884 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:55:01,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:01,884 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 650 transitions. [2024-09-12 18:55:01,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:55:01,885 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:01,885 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 18:55:01,901 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 18:55:02,085 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 18:55:02,085 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:02,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:02,086 INFO L85 PathProgramCache]: Analyzing trace with hash 650744004, now seen corresponding path program 1 times [2024-09-12 18:55:02,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:02,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116586016] [2024-09-12 18:55:02,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:02,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:02,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [133974367] [2024-09-12 18:55:02,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:02,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:02,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:02,095 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:02,100 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 18:55:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:02,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:55:02,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:02,199 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 18:55:02,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:02,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:02,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116586016] [2024-09-12 18:55:02,200 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:02,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133974367] [2024-09-12 18:55:02,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133974367] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:02,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:02,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:55:02,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260948245] [2024-09-12 18:55:02,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:02,201 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:55:02,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:02,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:55:02,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:55:02,202 INFO L87 Difference]: Start difference. First operand 436 states and 650 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 18:55:02,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:02,866 INFO L93 Difference]: Finished difference Result 465 states and 663 transitions. [2024-09-12 18:55:02,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:55:02,867 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 18:55:02,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:02,870 INFO L225 Difference]: With dead ends: 465 [2024-09-12 18:55:02,870 INFO L226 Difference]: Without dead ends: 464 [2024-09-12 18:55:02,870 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 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 18:55:02,871 INFO L434 NwaCegarLoop]: 138 mSDtfsCounter, 57 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:02,871 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 320 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:55:02,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-09-12 18:55:02,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 436. [2024-09-12 18:55:02,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 341 states have (on average 1.6598240469208212) internal successors, (566), 390 states have internal predecessors, (566), 42 states have call successors, (42), 5 states have call predecessors, (42), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 18:55:02,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 648 transitions. [2024-09-12 18:55:02,986 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 648 transitions. Word has length 49 [2024-09-12 18:55:02,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:02,986 INFO L474 AbstractCegarLoop]: Abstraction has 436 states and 648 transitions. [2024-09-12 18:55:02,986 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 18:55:02,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:02,986 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 648 transitions. [2024-09-12 18:55:02,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:55:02,987 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:02,987 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:03,000 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:03,187 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 18:55:03,187 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:03,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:03,188 INFO L85 PathProgramCache]: Analyzing trace with hash -501455260, now seen corresponding path program 1 times [2024-09-12 18:55:03,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:03,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248868353] [2024-09-12 18:55:03,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:03,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:03,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [760335462] [2024-09-12 18:55:03,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:03,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:03,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:03,204 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:03,205 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 18:55:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:03,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:55:03,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:03,429 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:55:03,430 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:04,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:04,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248868353] [2024-09-12 18:55:04,399 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:04,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760335462] [2024-09-12 18:55:04,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760335462] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:04,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:04,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:55:04,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937012119] [2024-09-12 18:55:04,400 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:04,400 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:55:04,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:04,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:55:04,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:55:04,401 INFO L87 Difference]: Start difference. First operand 436 states and 648 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 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 18:55:04,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:04,972 INFO L93 Difference]: Finished difference Result 482 states and 653 transitions. [2024-09-12 18:55:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:55:04,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 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 49 [2024-09-12 18:55:04,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:04,975 INFO L225 Difference]: With dead ends: 482 [2024-09-12 18:55:04,975 INFO L226 Difference]: Without dead ends: 481 [2024-09-12 18:55:04,975 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:55:04,976 INFO L434 NwaCegarLoop]: 120 mSDtfsCounter, 393 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:04,976 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 650 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:55:04,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-09-12 18:55:05,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 436. [2024-09-12 18:55:05,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 341 states have (on average 1.651026392961877) internal successors, (563), 390 states have internal predecessors, (563), 42 states have call successors, (42), 5 states have call predecessors, (42), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 18:55:05,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 645 transitions. [2024-09-12 18:55:05,136 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 645 transitions. Word has length 49 [2024-09-12 18:55:05,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:05,136 INFO L474 AbstractCegarLoop]: Abstraction has 436 states and 645 transitions. [2024-09-12 18:55:05,136 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 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 18:55:05,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:05,137 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 645 transitions. [2024-09-12 18:55:05,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 18:55:05,137 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:05,137 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:05,156 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-09-12 18:55:05,338 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 18:55:05,338 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:05,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:05,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1634756220, now seen corresponding path program 1 times [2024-09-12 18:55:05,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:05,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130576750] [2024-09-12 18:55:05,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:05,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:05,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1782558537] [2024-09-12 18:55:05,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:05,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:05,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:05,355 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:05,356 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 18:55:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:05,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:55:05,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:05,519 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:55:05,519 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:06,360 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:55:06,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:06,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130576750] [2024-09-12 18:55:06,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:06,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782558537] [2024-09-12 18:55:06,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782558537] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:55:06,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:55:06,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-09-12 18:55:06,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738163661] [2024-09-12 18:55:06,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:06,362 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:55:06,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:06,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:55:06,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:55:06,362 INFO L87 Difference]: Start difference. First operand 436 states and 645 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2024-09-12 18:55:09,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:09,139 INFO L93 Difference]: Finished difference Result 490 states and 659 transitions. [2024-09-12 18:55:09,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:55:09,140 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 50 [2024-09-12 18:55:09,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:09,142 INFO L225 Difference]: With dead ends: 490 [2024-09-12 18:55:09,142 INFO L226 Difference]: Without dead ends: 485 [2024-09-12 18:55:09,142 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:55:09,143 INFO L434 NwaCegarLoop]: 127 mSDtfsCounter, 379 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:09,143 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 672 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-09-12 18:55:09,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-09-12 18:55:09,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 357. [2024-09-12 18:55:09,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 271 states have (on average 1.6014760147601477) internal successors, (434), 320 states have internal predecessors, (434), 33 states have call successors, (33), 5 states have call predecessors, (33), 4 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:55:09,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 498 transitions. [2024-09-12 18:55:09,264 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 498 transitions. Word has length 50 [2024-09-12 18:55:09,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:09,265 INFO L474 AbstractCegarLoop]: Abstraction has 357 states and 498 transitions. [2024-09-12 18:55:09,265 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2024-09-12 18:55:09,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:09,265 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 498 transitions. [2024-09-12 18:55:09,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 18:55:09,266 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:09,266 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:09,290 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:09,470 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 18:55:09,470 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:09,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:09,471 INFO L85 PathProgramCache]: Analyzing trace with hash -862164634, now seen corresponding path program 1 times [2024-09-12 18:55:09,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:09,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423969599] [2024-09-12 18:55:09,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:09,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:09,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [550534797] [2024-09-12 18:55:09,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:09,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:09,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:09,480 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:09,483 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 18:55:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:09,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:55:09,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:09,691 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:55:09,691 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:10,346 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:55:10,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:10,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423969599] [2024-09-12 18:55:10,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:10,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550534797] [2024-09-12 18:55:10,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550534797] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:55:10,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:55:10,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-09-12 18:55:10,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776972811] [2024-09-12 18:55:10,347 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:10,347 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:55:10,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:10,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:55:10,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:55:10,348 INFO L87 Difference]: Start difference. First operand 357 states and 498 transitions. Second operand has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:55:11,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:11,933 INFO L93 Difference]: Finished difference Result 409 states and 514 transitions. [2024-09-12 18:55:11,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:55:11,934 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 51 [2024-09-12 18:55:11,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:11,936 INFO L225 Difference]: With dead ends: 409 [2024-09-12 18:55:11,936 INFO L226 Difference]: Without dead ends: 407 [2024-09-12 18:55:11,936 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:55:11,937 INFO L434 NwaCegarLoop]: 142 mSDtfsCounter, 502 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:11,937 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 881 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-09-12 18:55:11,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-09-12 18:55:12,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 358. [2024-09-12 18:55:12,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 272 states have (on average 1.5845588235294117) internal successors, (431), 321 states have internal predecessors, (431), 33 states have call successors, (33), 5 states have call predecessors, (33), 4 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:55:12,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 495 transitions. [2024-09-12 18:55:12,065 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 495 transitions. Word has length 51 [2024-09-12 18:55:12,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:12,065 INFO L474 AbstractCegarLoop]: Abstraction has 358 states and 495 transitions. [2024-09-12 18:55:12,065 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:55:12,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:12,066 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 495 transitions. [2024-09-12 18:55:12,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 18:55:12,066 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:12,067 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] [2024-09-12 18:55:12,089 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:12,267 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 18:55:12,267 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:12,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:12,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1833363282, now seen corresponding path program 1 times [2024-09-12 18:55:12,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:12,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415163302] [2024-09-12 18:55:12,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:12,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:12,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [849161123] [2024-09-12 18:55:12,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:12,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:12,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:12,278 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:12,280 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 18:55:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:12,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:55:12,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:12,415 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 18:55:12,416 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:12,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:12,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415163302] [2024-09-12 18:55:12,416 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:12,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849161123] [2024-09-12 18:55:12,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849161123] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:12,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:12,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:55:12,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348470141] [2024-09-12 18:55:12,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:12,416 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:55:12,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:12,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:55:12,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:55:12,417 INFO L87 Difference]: Start difference. First operand 358 states and 495 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 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 18:55:12,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:12,897 INFO L93 Difference]: Finished difference Result 374 states and 500 transitions. [2024-09-12 18:55:12,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:55:12,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 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 53 [2024-09-12 18:55:12,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:12,899 INFO L225 Difference]: With dead ends: 374 [2024-09-12 18:55:12,899 INFO L226 Difference]: Without dead ends: 372 [2024-09-12 18:55:12,899 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 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 18:55:12,899 INFO L434 NwaCegarLoop]: 113 mSDtfsCounter, 32 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:12,899 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 391 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:55:12,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-09-12 18:55:13,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 362. [2024-09-12 18:55:13,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 275 states have (on average 1.5781818181818181) internal successors, (434), 324 states have internal predecessors, (434), 33 states have call successors, (33), 6 states have call predecessors, (33), 5 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:55:13,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 498 transitions. [2024-09-12 18:55:13,030 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 498 transitions. Word has length 53 [2024-09-12 18:55:13,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:13,030 INFO L474 AbstractCegarLoop]: Abstraction has 362 states and 498 transitions. [2024-09-12 18:55:13,030 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 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 18:55:13,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:13,031 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 498 transitions. [2024-09-12 18:55:13,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 18:55:13,031 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:13,031 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:13,048 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:13,232 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 18:55:13,232 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:13,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:13,232 INFO L85 PathProgramCache]: Analyzing trace with hash -330700910, now seen corresponding path program 1 times [2024-09-12 18:55:13,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:13,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666569412] [2024-09-12 18:55:13,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:13,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:13,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237773841] [2024-09-12 18:55:13,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:13,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:13,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:13,244 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:13,245 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 18:55:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:13,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:55:13,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:13,421 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:13,422 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:13,556 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:13,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:13,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666569412] [2024-09-12 18:55:13,556 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:13,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237773841] [2024-09-12 18:55:13,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237773841] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:55:13,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:55:13,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2024-09-12 18:55:13,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900014070] [2024-09-12 18:55:13,557 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:13,557 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:55:13,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:13,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:55:13,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:55:13,558 INFO L87 Difference]: Start difference. First operand 362 states and 498 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:14,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:14,513 INFO L93 Difference]: Finished difference Result 409 states and 517 transitions. [2024-09-12 18:55:14,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:55:14,513 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2024-09-12 18:55:14,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:14,515 INFO L225 Difference]: With dead ends: 409 [2024-09-12 18:55:14,515 INFO L226 Difference]: Without dead ends: 407 [2024-09-12 18:55:14,515 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:55:14,516 INFO L434 NwaCegarLoop]: 129 mSDtfsCounter, 154 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:14,516 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 801 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:55:14,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-09-12 18:55:14,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 366. [2024-09-12 18:55:14,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 278 states have (on average 1.5719424460431655) internal successors, (437), 327 states have internal predecessors, (437), 33 states have call successors, (33), 7 states have call predecessors, (33), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:55:14,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 501 transitions. [2024-09-12 18:55:14,631 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 501 transitions. Word has length 55 [2024-09-12 18:55:14,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:14,631 INFO L474 AbstractCegarLoop]: Abstraction has 366 states and 501 transitions. [2024-09-12 18:55:14,631 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:55:14,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:14,631 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 501 transitions. [2024-09-12 18:55:14,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 18:55:14,632 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:14,632 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:14,644 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:14,833 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 18:55:14,833 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:14,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:14,833 INFO L85 PathProgramCache]: Analyzing trace with hash -215074698, now seen corresponding path program 1 times [2024-09-12 18:55:14,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:14,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655062703] [2024-09-12 18:55:14,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:14,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:15,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:55:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:15,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:55:15,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:15,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:55:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:15,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:55:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:15,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:55:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:15,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:55:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:15,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:55:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:15,044 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-12 18:55:15,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:15,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655062703] [2024-09-12 18:55:15,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655062703] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:15,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666137587] [2024-09-12 18:55:15,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:15,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:15,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:15,046 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:15,047 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 18:55:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:15,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:55:15,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:15,159 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:55:15,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:15,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666137587] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:15,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:15,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-09-12 18:55:15,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001203471] [2024-09-12 18:55:15,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:15,160 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:55:15,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:15,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:55:15,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:55:15,160 INFO L87 Difference]: Start difference. First operand 366 states and 501 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 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 18:55:15,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:15,736 INFO L93 Difference]: Finished difference Result 393 states and 505 transitions. [2024-09-12 18:55:15,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:55:15,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 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 57 [2024-09-12 18:55:15,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:15,738 INFO L225 Difference]: With dead ends: 393 [2024-09-12 18:55:15,738 INFO L226 Difference]: Without dead ends: 392 [2024-09-12 18:55:15,738 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:55:15,739 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 261 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:15,739 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 297 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:55:15,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-09-12 18:55:15,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 366. [2024-09-12 18:55:15,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 278 states have (on average 1.5683453237410072) internal successors, (436), 327 states have internal predecessors, (436), 33 states have call successors, (33), 7 states have call predecessors, (33), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:55:15,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 500 transitions. [2024-09-12 18:55:15,851 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 500 transitions. Word has length 57 [2024-09-12 18:55:15,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:15,851 INFO L474 AbstractCegarLoop]: Abstraction has 366 states and 500 transitions. [2024-09-12 18:55:15,851 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 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 18:55:15,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:15,851 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 500 transitions. [2024-09-12 18:55:15,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 18:55:15,852 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:15,852 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:15,865 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:16,052 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 18:55:16,052 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:16,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:16,053 INFO L85 PathProgramCache]: Analyzing trace with hash 24165517, now seen corresponding path program 1 times [2024-09-12 18:55:16,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:16,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965176398] [2024-09-12 18:55:16,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:16,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:16,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139689359] [2024-09-12 18:55:16,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:16,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:16,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:16,068 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:16,070 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 18:55:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:16,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:55:16,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:16,264 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:55:16,264 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:28,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:28,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965176398] [2024-09-12 18:55:28,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:28,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139689359] [2024-09-12 18:55:28,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139689359] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:28,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:28,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:55:28,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668751101] [2024-09-12 18:55:28,505 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:28,505 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:55:28,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:28,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:55:28,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=110, Unknown=3, NotChecked=0, Total=156 [2024-09-12 18:55:28,506 INFO L87 Difference]: Start difference. First operand 366 states and 500 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 18:55:28,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:28,859 INFO L93 Difference]: Finished difference Result 419 states and 522 transitions. [2024-09-12 18:55:28,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:55:28,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 57 [2024-09-12 18:55:28,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:28,862 INFO L225 Difference]: With dead ends: 419 [2024-09-12 18:55:28,862 INFO L226 Difference]: Without dead ends: 417 [2024-09-12 18:55:28,862 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=43, Invalid=110, Unknown=3, NotChecked=0, Total=156 [2024-09-12 18:55:28,863 INFO L434 NwaCegarLoop]: 140 mSDtfsCounter, 325 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:28,863 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 685 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:55:28,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-09-12 18:55:28,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 366. [2024-09-12 18:55:28,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 278 states have (on average 1.5539568345323742) internal successors, (432), 327 states have internal predecessors, (432), 33 states have call successors, (33), 7 states have call predecessors, (33), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:55:28,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 496 transitions. [2024-09-12 18:55:28,991 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 496 transitions. Word has length 57 [2024-09-12 18:55:28,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:28,991 INFO L474 AbstractCegarLoop]: Abstraction has 366 states and 496 transitions. [2024-09-12 18:55:28,991 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 18:55:28,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:28,992 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 496 transitions. [2024-09-12 18:55:28,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 18:55:28,992 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:28,992 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:29,004 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-09-12 18:55:29,192 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:29,193 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:29,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:29,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1922619074, now seen corresponding path program 1 times [2024-09-12 18:55:29,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:29,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458212008] [2024-09-12 18:55:29,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:29,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:29,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1981193548] [2024-09-12 18:55:29,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:29,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:29,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:29,204 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:29,206 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 18:55:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:29,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:55:29,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:29,315 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:55:29,316 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:29,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:29,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458212008] [2024-09-12 18:55:29,316 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:29,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981193548] [2024-09-12 18:55:29,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981193548] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:29,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:29,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:55:29,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920409906] [2024-09-12 18:55:29,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:29,317 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:55:29,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:29,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:55:29,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:55:29,318 INFO L87 Difference]: Start difference. First operand 366 states and 496 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 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 18:55:29,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:29,736 INFO L93 Difference]: Finished difference Result 393 states and 500 transitions. [2024-09-12 18:55:29,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:55:29,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 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 58 [2024-09-12 18:55:29,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:29,738 INFO L225 Difference]: With dead ends: 393 [2024-09-12 18:55:29,738 INFO L226 Difference]: Without dead ends: 392 [2024-09-12 18:55:29,739 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:55:29,739 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 258 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:29,739 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 299 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:55:29,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-09-12 18:55:29,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 366. [2024-09-12 18:55:29,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 278 states have (on average 1.5503597122302157) internal successors, (431), 327 states have internal predecessors, (431), 33 states have call successors, (33), 7 states have call predecessors, (33), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:55:29,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 495 transitions. [2024-09-12 18:55:29,865 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 495 transitions. Word has length 58 [2024-09-12 18:55:29,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:29,866 INFO L474 AbstractCegarLoop]: Abstraction has 366 states and 495 transitions. [2024-09-12 18:55:29,866 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 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 18:55:29,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:29,866 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 495 transitions. [2024-09-12 18:55:29,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 18:55:29,867 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:29,867 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:29,883 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-09-12 18:55:30,067 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:30,067 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:30,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:30,068 INFO L85 PathProgramCache]: Analyzing trace with hash 749131130, now seen corresponding path program 1 times [2024-09-12 18:55:30,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:30,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756568602] [2024-09-12 18:55:30,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:30,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:30,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [813475109] [2024-09-12 18:55:30,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:30,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:30,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:30,079 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:30,083 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 18:55:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:30,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:55:30,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:30,268 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:55:30,268 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:38,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:38,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756568602] [2024-09-12 18:55:38,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:38,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813475109] [2024-09-12 18:55:38,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813475109] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:38,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:38,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:55:38,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012467201] [2024-09-12 18:55:38,915 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:38,915 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:55:38,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:38,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:55:38,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=112, Unknown=2, NotChecked=0, Total=156 [2024-09-12 18:55:38,916 INFO L87 Difference]: Start difference. First operand 366 states and 495 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 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 18:55:39,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:39,339 INFO L93 Difference]: Finished difference Result 419 states and 517 transitions. [2024-09-12 18:55:39,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:55:39,339 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 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 58 [2024-09-12 18:55:39,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:39,341 INFO L225 Difference]: With dead ends: 419 [2024-09-12 18:55:39,341 INFO L226 Difference]: Without dead ends: 417 [2024-09-12 18:55:39,342 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=53, Invalid=127, Unknown=2, NotChecked=0, Total=182 [2024-09-12 18:55:39,342 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 249 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:39,343 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 522 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:55:39,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-09-12 18:55:39,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 366. [2024-09-12 18:55:39,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 278 states have (on average 1.5359712230215827) internal successors, (427), 327 states have internal predecessors, (427), 33 states have call successors, (33), 7 states have call predecessors, (33), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:55:39,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 491 transitions. [2024-09-12 18:55:39,450 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 491 transitions. Word has length 58 [2024-09-12 18:55:39,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:39,451 INFO L474 AbstractCegarLoop]: Abstraction has 366 states and 491 transitions. [2024-09-12 18:55:39,451 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 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 18:55:39,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:39,451 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 491 transitions. [2024-09-12 18:55:39,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 18:55:39,451 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:39,452 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:39,467 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-09-12 18:55:39,652 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:39,652 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:39,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:39,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1748228655, now seen corresponding path program 1 times [2024-09-12 18:55:39,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:39,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495318479] [2024-09-12 18:55:39,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:39,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:39,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [77815239] [2024-09-12 18:55:39,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:39,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:39,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:39,667 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:39,668 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 18:55:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:39,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:55:39,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:39,943 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:55:39,943 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:40,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:40,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495318479] [2024-09-12 18:55:40,338 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:40,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77815239] [2024-09-12 18:55:40,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77815239] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:40,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:40,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:55:40,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308534942] [2024-09-12 18:55:40,338 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:40,339 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:55:40,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:40,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:55:40,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:55:40,339 INFO L87 Difference]: Start difference. First operand 366 states and 491 transitions. Second operand has 13 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 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 18:55:41,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:41,573 INFO L93 Difference]: Finished difference Result 494 states and 636 transitions. [2024-09-12 18:55:41,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:55:41,574 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 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 59 [2024-09-12 18:55:41,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:41,575 INFO L225 Difference]: With dead ends: 494 [2024-09-12 18:55:41,576 INFO L226 Difference]: Without dead ends: 493 [2024-09-12 18:55:41,576 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=145, Invalid=611, Unknown=0, NotChecked=0, Total=756 [2024-09-12 18:55:41,576 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 572 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:41,576 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 588 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:55:41,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-09-12 18:55:41,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 379. [2024-09-12 18:55:41,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 290 states have (on average 1.513793103448276) internal successors, (439), 339 states have internal predecessors, (439), 34 states have call successors, (34), 7 states have call predecessors, (34), 6 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-09-12 18:55:41,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 505 transitions. [2024-09-12 18:55:41,693 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 505 transitions. Word has length 59 [2024-09-12 18:55:41,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:41,693 INFO L474 AbstractCegarLoop]: Abstraction has 379 states and 505 transitions. [2024-09-12 18:55:41,693 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 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 18:55:41,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:41,693 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 505 transitions. [2024-09-12 18:55:41,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 18:55:41,694 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:41,694 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:41,707 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-09-12 18:55:41,897 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 18:55:41,897 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:41,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:41,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1639486436, now seen corresponding path program 1 times [2024-09-12 18:55:41,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:41,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944238756] [2024-09-12 18:55:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:41,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:41,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1178993454] [2024-09-12 18:55:41,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:41,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:41,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:41,910 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:41,911 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-12 18:55:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:41,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:55:41,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:42,190 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:55:42,190 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:47,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:47,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944238756] [2024-09-12 18:55:47,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:47,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178993454] [2024-09-12 18:55:47,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178993454] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:47,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:47,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:55:47,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177409098] [2024-09-12 18:55:47,563 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:47,563 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:55:47,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:47,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:55:47,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=342, Unknown=1, NotChecked=0, Total=420 [2024-09-12 18:55:47,564 INFO L87 Difference]: Start difference. First operand 379 states and 505 transitions. Second operand has 13 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 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 18:55:48,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:48,685 INFO L93 Difference]: Finished difference Result 494 states and 635 transitions. [2024-09-12 18:55:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:55:48,685 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 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 60 [2024-09-12 18:55:48,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:48,687 INFO L225 Difference]: With dead ends: 494 [2024-09-12 18:55:48,687 INFO L226 Difference]: Without dead ends: 493 [2024-09-12 18:55:48,688 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=145, Invalid=610, Unknown=1, NotChecked=0, Total=756 [2024-09-12 18:55:48,688 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 613 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:48,688 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 519 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:55:48,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-09-12 18:55:48,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 368. [2024-09-12 18:55:48,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 280 states have (on average 1.5321428571428573) internal successors, (429), 329 states have internal predecessors, (429), 33 states have call successors, (33), 7 states have call predecessors, (33), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:55:48,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 493 transitions. [2024-09-12 18:55:48,818 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 493 transitions. Word has length 60 [2024-09-12 18:55:48,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:48,818 INFO L474 AbstractCegarLoop]: Abstraction has 368 states and 493 transitions. [2024-09-12 18:55:48,818 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 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 18:55:48,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:48,818 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 493 transitions. [2024-09-12 18:55:48,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 18:55:48,819 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:48,819 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:48,832 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:49,019 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 18:55:49,020 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:49,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:49,020 INFO L85 PathProgramCache]: Analyzing trace with hash 962205802, now seen corresponding path program 1 times [2024-09-12 18:55:49,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:49,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285723740] [2024-09-12 18:55:49,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:49,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:49,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942732849] [2024-09-12 18:55:49,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:49,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:49,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:49,039 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:49,040 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-09-12 18:55:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:49,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:55:49,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:49,142 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:55:49,143 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:49,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:49,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285723740] [2024-09-12 18:55:49,143 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:49,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942732849] [2024-09-12 18:55:49,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942732849] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:49,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:49,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:55:49,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519028041] [2024-09-12 18:55:49,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:49,144 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:55:49,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:49,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:55:49,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:55:49,145 INFO L87 Difference]: Start difference. First operand 368 states and 493 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:55:49,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:49,430 INFO L93 Difference]: Finished difference Result 398 states and 510 transitions. [2024-09-12 18:55:49,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:55:49,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2024-09-12 18:55:49,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:49,432 INFO L225 Difference]: With dead ends: 398 [2024-09-12 18:55:49,432 INFO L226 Difference]: Without dead ends: 396 [2024-09-12 18:55:49,433 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 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 18:55:49,433 INFO L434 NwaCegarLoop]: 124 mSDtfsCounter, 34 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:49,433 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 461 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:55:49,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-09-12 18:55:49,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 372. [2024-09-12 18:55:49,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 283 states have (on average 1.5265017667844523) internal successors, (432), 332 states have internal predecessors, (432), 33 states have call successors, (33), 8 states have call predecessors, (33), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 18:55:49,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 496 transitions. [2024-09-12 18:55:49,557 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 496 transitions. Word has length 62 [2024-09-12 18:55:49,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:49,557 INFO L474 AbstractCegarLoop]: Abstraction has 372 states and 496 transitions. [2024-09-12 18:55:49,557 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:55:49,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:49,558 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 496 transitions. [2024-09-12 18:55:49,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 18:55:49,559 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:49,559 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:49,574 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:49,759 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 18:55:49,759 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:55:49,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:49,760 INFO L85 PathProgramCache]: Analyzing trace with hash 715528145, now seen corresponding path program 1 times [2024-09-12 18:55:49,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:49,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399271243] [2024-09-12 18:55:49,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:49,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:49,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [470395270] [2024-09-12 18:55:49,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:49,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:49,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:49,774 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:49,776 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-09-12 18:55:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:49,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:55:49,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:49,890 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:49,890 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:58,116 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:55:58,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:58,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399271243] [2024-09-12 18:55:58,117 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:58,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470395270] [2024-09-12 18:55:58,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470395270] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:55:58,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:55:58,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2024-09-12 18:55:58,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913879137] [2024-09-12 18:55:58,117 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:58,117 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:55:58,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:58,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:55:58,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2024-09-12 18:55:58,118 INFO L87 Difference]: Start difference. First operand 372 states and 496 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 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 18:55:59,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:59,840 INFO L93 Difference]: Finished difference Result 645 states and 831 transitions. [2024-09-12 18:55:59,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:55:59,841 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 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 61 [2024-09-12 18:55:59,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:59,843 INFO L225 Difference]: With dead ends: 645 [2024-09-12 18:55:59,843 INFO L226 Difference]: Without dead ends: 640 [2024-09-12 18:55:59,843 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2024-09-12 18:55:59,844 INFO L434 NwaCegarLoop]: 195 mSDtfsCounter, 344 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:59,844 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 724 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-09-12 18:55:59,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-09-12 18:56:00,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 532. [2024-09-12 18:56:00,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 426 states have (on average 1.5751173708920188) internal successors, (671), 475 states have internal predecessors, (671), 50 states have call successors, (50), 8 states have call predecessors, (50), 7 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 18:56:00,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 769 transitions. [2024-09-12 18:56:00,064 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 769 transitions. Word has length 61 [2024-09-12 18:56:00,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:00,064 INFO L474 AbstractCegarLoop]: Abstraction has 532 states and 769 transitions. [2024-09-12 18:56:00,064 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 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 18:56:00,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:00,065 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 769 transitions. [2024-09-12 18:56:00,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 18:56:00,065 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:00,065 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:00,078 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:00,265 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 18:56:00,266 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:00,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:00,266 INFO L85 PathProgramCache]: Analyzing trace with hash 706536126, now seen corresponding path program 1 times [2024-09-12 18:56:00,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:00,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075880451] [2024-09-12 18:56:00,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:00,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:00,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1041585059] [2024-09-12 18:56:00,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:00,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:00,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:00,281 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:00,282 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-09-12 18:56:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:00,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:56:00,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:00,476 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:56:00,477 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:56:08,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:08,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075880451] [2024-09-12 18:56:08,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:08,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041585059] [2024-09-12 18:56:08,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041585059] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:08,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:56:08,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2024-09-12 18:56:08,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813553587] [2024-09-12 18:56:08,898 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:08,898 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:56:08,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:08,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:56:08,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2024-09-12 18:56:08,898 INFO L87 Difference]: Start difference. First operand 532 states and 769 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 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 18:56:11,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:11,491 INFO L93 Difference]: Finished difference Result 642 states and 824 transitions. [2024-09-12 18:56:11,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:56:11,491 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 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 62 [2024-09-12 18:56:11,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:11,493 INFO L225 Difference]: With dead ends: 642 [2024-09-12 18:56:11,493 INFO L226 Difference]: Without dead ends: 641 [2024-09-12 18:56:11,494 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 115 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2024-09-12 18:56:11,494 INFO L434 NwaCegarLoop]: 197 mSDtfsCounter, 204 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:11,494 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 901 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-09-12 18:56:11,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-09-12 18:56:11,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 532. [2024-09-12 18:56:11,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 426 states have (on average 1.5704225352112675) internal successors, (669), 475 states have internal predecessors, (669), 50 states have call successors, (50), 8 states have call predecessors, (50), 7 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 18:56:11,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 767 transitions. [2024-09-12 18:56:11,689 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 767 transitions. Word has length 62 [2024-09-12 18:56:11,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:11,689 INFO L474 AbstractCegarLoop]: Abstraction has 532 states and 767 transitions. [2024-09-12 18:56:11,689 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 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 18:56:11,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:11,689 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 767 transitions. [2024-09-12 18:56:11,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-09-12 18:56:11,690 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:11,690 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:11,702 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-09-12 18:56:11,890 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 18:56:11,891 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:11,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:11,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1261967351, now seen corresponding path program 1 times [2024-09-12 18:56:11,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:11,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493279144] [2024-09-12 18:56:11,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:11,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:11,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2082670007] [2024-09-12 18:56:11,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:11,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:11,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:11,902 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:11,904 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-09-12 18:56:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:11,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:56:11,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:12,006 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:56:12,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:12,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:12,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493279144] [2024-09-12 18:56:12,007 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:12,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082670007] [2024-09-12 18:56:12,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082670007] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:12,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:12,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:56:12,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288166051] [2024-09-12 18:56:12,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:12,007 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:12,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:12,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:12,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:56:12,008 INFO L87 Difference]: Start difference. First operand 532 states and 767 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:56:12,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:12,601 INFO L93 Difference]: Finished difference Result 609 states and 857 transitions. [2024-09-12 18:56:12,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:56:12,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 64 [2024-09-12 18:56:12,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:12,604 INFO L225 Difference]: With dead ends: 609 [2024-09-12 18:56:12,604 INFO L226 Difference]: Without dead ends: 606 [2024-09-12 18:56:12,604 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:56:12,604 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 203 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:12,604 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 299 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:56:12,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-09-12 18:56:12,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 588. [2024-09-12 18:56:12,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 474 states have (on average 1.5379746835443038) internal successors, (729), 523 states have internal predecessors, (729), 58 states have call successors, (58), 8 states have call predecessors, (58), 7 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-09-12 18:56:12,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 843 transitions. [2024-09-12 18:56:12,888 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 843 transitions. Word has length 64 [2024-09-12 18:56:12,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:12,888 INFO L474 AbstractCegarLoop]: Abstraction has 588 states and 843 transitions. [2024-09-12 18:56:12,888 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:56:12,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:12,889 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 843 transitions. [2024-09-12 18:56:12,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:56:12,889 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:12,889 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:12,903 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:13,090 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 18:56:13,090 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:13,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:13,090 INFO L85 PathProgramCache]: Analyzing trace with hash 466282342, now seen corresponding path program 1 times [2024-09-12 18:56:13,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:13,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877940673] [2024-09-12 18:56:13,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:13,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:13,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1948406820] [2024-09-12 18:56:13,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:13,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:13,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:13,102 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:13,103 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-09-12 18:56:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:13,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:56:13,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:13,225 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:56:13,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:13,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:13,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877940673] [2024-09-12 18:56:13,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:13,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948406820] [2024-09-12 18:56:13,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948406820] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:13,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:13,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:56:13,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535956862] [2024-09-12 18:56:13,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:13,226 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:13,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:13,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:13,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:56:13,227 INFO L87 Difference]: Start difference. First operand 588 states and 843 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:56:13,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:13,648 INFO L93 Difference]: Finished difference Result 607 states and 851 transitions. [2024-09-12 18:56:13,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:56:13,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2024-09-12 18:56:13,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:13,651 INFO L225 Difference]: With dead ends: 607 [2024-09-12 18:56:13,651 INFO L226 Difference]: Without dead ends: 606 [2024-09-12 18:56:13,651 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:56:13,651 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 214 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:13,652 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 224 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:56:13,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-09-12 18:56:13,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 588. [2024-09-12 18:56:13,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 474 states have (on average 1.5337552742616034) internal successors, (727), 523 states have internal predecessors, (727), 58 states have call successors, (58), 8 states have call predecessors, (58), 7 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-09-12 18:56:13,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 841 transitions. [2024-09-12 18:56:13,861 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 841 transitions. Word has length 65 [2024-09-12 18:56:13,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:13,862 INFO L474 AbstractCegarLoop]: Abstraction has 588 states and 841 transitions. [2024-09-12 18:56:13,862 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:56:13,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:13,862 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 841 transitions. [2024-09-12 18:56:13,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 18:56:13,863 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:13,863 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:13,877 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:14,064 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 18:56:14,064 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:14,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:14,064 INFO L85 PathProgramCache]: Analyzing trace with hash 935255464, now seen corresponding path program 1 times [2024-09-12 18:56:14,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:14,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104759967] [2024-09-12 18:56:14,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:14,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:14,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [383610999] [2024-09-12 18:56:14,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:14,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:14,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:14,076 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:14,078 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-09-12 18:56:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:14,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 18:56:14,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:14,334 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:56:14,334 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:14,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:14,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104759967] [2024-09-12 18:56:14,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:14,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383610999] [2024-09-12 18:56:14,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383610999] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:14,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:14,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:56:14,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260627350] [2024-09-12 18:56:14,375 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:14,375 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:56:14,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:14,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:56:14,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:56:14,376 INFO L87 Difference]: Start difference. First operand 588 states and 841 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 2 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 18:56:15,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:15,454 INFO L93 Difference]: Finished difference Result 634 states and 853 transitions. [2024-09-12 18:56:15,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:56:15,454 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 2 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 66 [2024-09-12 18:56:15,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:15,457 INFO L225 Difference]: With dead ends: 634 [2024-09-12 18:56:15,457 INFO L226 Difference]: Without dead ends: 632 [2024-09-12 18:56:15,458 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 66 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:56:15,458 INFO L434 NwaCegarLoop]: 137 mSDtfsCounter, 162 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:15,458 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 733 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:56:15,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-09-12 18:56:15,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 596. [2024-09-12 18:56:15,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 480 states have (on average 1.5270833333333333) internal successors, (733), 529 states have internal predecessors, (733), 58 states have call successors, (58), 10 states have call predecessors, (58), 9 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-09-12 18:56:15,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 847 transitions. [2024-09-12 18:56:15,669 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 847 transitions. Word has length 66 [2024-09-12 18:56:15,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:15,669 INFO L474 AbstractCegarLoop]: Abstraction has 596 states and 847 transitions. [2024-09-12 18:56:15,669 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 2 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 18:56:15,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:15,670 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 847 transitions. [2024-09-12 18:56:15,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-09-12 18:56:15,670 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:15,670 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:15,682 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-09-12 18:56:15,871 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 18:56:15,871 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:15,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:15,871 INFO L85 PathProgramCache]: Analyzing trace with hash -468967476, now seen corresponding path program 1 times [2024-09-12 18:56:15,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:15,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123286298] [2024-09-12 18:56:15,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:15,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:15,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1892461215] [2024-09-12 18:56:15,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:15,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:15,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:15,882 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:15,884 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-09-12 18:56:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:15,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:56:15,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:15,989 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:56:15,989 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:15,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:15,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123286298] [2024-09-12 18:56:15,989 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:15,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892461215] [2024-09-12 18:56:15,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892461215] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:15,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:15,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:56:15,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348092076] [2024-09-12 18:56:15,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:15,990 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:15,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:15,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:15,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:56:15,990 INFO L87 Difference]: Start difference. First operand 596 states and 847 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:56:16,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:16,399 INFO L93 Difference]: Finished difference Result 814 states and 1200 transitions. [2024-09-12 18:56:16,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:56:16,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2024-09-12 18:56:16,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:16,403 INFO L225 Difference]: With dead ends: 814 [2024-09-12 18:56:16,403 INFO L226 Difference]: Without dead ends: 810 [2024-09-12 18:56:16,404 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 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 18:56:16,404 INFO L434 NwaCegarLoop]: 115 mSDtfsCounter, 20 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:16,404 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 433 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:56:16,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-09-12 18:56:16,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 790. [2024-09-12 18:56:16,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 644 states have (on average 1.5372670807453417) internal successors, (990), 693 states have internal predecessors, (990), 87 states have call successors, (87), 11 states have call predecessors, (87), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-09-12 18:56:16,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1162 transitions. [2024-09-12 18:56:16,724 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1162 transitions. Word has length 69 [2024-09-12 18:56:16,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:16,725 INFO L474 AbstractCegarLoop]: Abstraction has 790 states and 1162 transitions. [2024-09-12 18:56:16,725 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:56:16,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:16,725 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1162 transitions. [2024-09-12 18:56:16,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 18:56:16,726 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:16,726 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:16,738 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:16,926 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:16,926 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:16,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:16,927 INFO L85 PathProgramCache]: Analyzing trace with hash 293981980, now seen corresponding path program 1 times [2024-09-12 18:56:16,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:16,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895931920] [2024-09-12 18:56:16,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:16,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:17,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:17,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:17,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:17,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:17,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:17,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:17,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:56:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:17,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:56:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:17,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:56:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:17,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:56:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:17,028 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:56:17,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:17,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895931920] [2024-09-12 18:56:17,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895931920] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:17,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:17,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:56:17,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546528221] [2024-09-12 18:56:17,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:17,029 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:56:17,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:17,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:56:17,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:56:17,030 INFO L87 Difference]: Start difference. First operand 790 states and 1162 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:56:17,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:17,815 INFO L93 Difference]: Finished difference Result 812 states and 1174 transitions. [2024-09-12 18:56:17,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:56:17,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 71 [2024-09-12 18:56:17,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:17,819 INFO L225 Difference]: With dead ends: 812 [2024-09-12 18:56:17,819 INFO L226 Difference]: Without dead ends: 810 [2024-09-12 18:56:17,820 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:56:17,820 INFO L434 NwaCegarLoop]: 86 mSDtfsCounter, 230 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:17,820 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 297 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:56:17,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-09-12 18:56:18,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 792. [2024-09-12 18:56:18,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 646 states have (on average 1.5325077399380804) internal successors, (990), 695 states have internal predecessors, (990), 87 states have call successors, (87), 11 states have call predecessors, (87), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-09-12 18:56:18,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1162 transitions. [2024-09-12 18:56:18,181 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1162 transitions. Word has length 71 [2024-09-12 18:56:18,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:18,181 INFO L474 AbstractCegarLoop]: Abstraction has 792 states and 1162 transitions. [2024-09-12 18:56:18,181 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:56:18,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:18,181 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1162 transitions. [2024-09-12 18:56:18,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 18:56:18,182 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:18,182 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:18,182 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-09-12 18:56:18,182 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:18,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:18,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1702162544, now seen corresponding path program 1 times [2024-09-12 18:56:18,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:18,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447028427] [2024-09-12 18:56:18,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:18,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:18,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:18,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:18,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:18,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:18,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:18,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:56:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:18,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:56:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:18,426 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-12 18:56:18,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:18,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447028427] [2024-09-12 18:56:18,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447028427] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:18,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477034795] [2024-09-12 18:56:18,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:18,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:18,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:18,429 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:18,430 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-09-12 18:56:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:18,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:56:18,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:18,617 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:56:18,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:18,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477034795] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:18,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:18,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2024-09-12 18:56:18,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167811085] [2024-09-12 18:56:18,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:18,619 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:56:18,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:18,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:56:18,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:56:18,619 INFO L87 Difference]: Start difference. First operand 792 states and 1162 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 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 18:56:19,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:19,819 INFO L93 Difference]: Finished difference Result 845 states and 1170 transitions. [2024-09-12 18:56:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:56:19,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 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 70 [2024-09-12 18:56:19,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:19,822 INFO L225 Difference]: With dead ends: 845 [2024-09-12 18:56:19,822 INFO L226 Difference]: Without dead ends: 844 [2024-09-12 18:56:19,823 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:56:19,823 INFO L434 NwaCegarLoop]: 126 mSDtfsCounter, 438 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:19,823 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 620 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:56:19,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2024-09-12 18:56:20,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 792. [2024-09-12 18:56:20,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 646 states have (on average 1.5294117647058822) internal successors, (988), 695 states have internal predecessors, (988), 87 states have call successors, (87), 11 states have call predecessors, (87), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-09-12 18:56:20,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1160 transitions. [2024-09-12 18:56:20,137 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1160 transitions. Word has length 70 [2024-09-12 18:56:20,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:20,138 INFO L474 AbstractCegarLoop]: Abstraction has 792 states and 1160 transitions. [2024-09-12 18:56:20,138 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 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 18:56:20,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:20,138 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1160 transitions. [2024-09-12 18:56:20,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 18:56:20,139 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:20,139 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:20,156 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-09-12 18:56:20,339 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:20,340 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:20,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:20,340 INFO L85 PathProgramCache]: Analyzing trace with hash 523506918, now seen corresponding path program 1 times [2024-09-12 18:56:20,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:20,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451451551] [2024-09-12 18:56:20,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:20,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:20,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:20,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:20,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:20,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:20,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:20,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:20,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:56:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:20,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:56:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:20,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:56:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:20,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:56:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:20,448 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:56:20,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:20,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451451551] [2024-09-12 18:56:20,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451451551] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:20,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:20,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:56:20,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419690220] [2024-09-12 18:56:20,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:20,451 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:56:20,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:20,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:56:20,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:56:20,452 INFO L87 Difference]: Start difference. First operand 792 states and 1160 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:56:21,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:21,290 INFO L93 Difference]: Finished difference Result 821 states and 1168 transitions. [2024-09-12 18:56:21,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:56:21,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 72 [2024-09-12 18:56:21,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:21,293 INFO L225 Difference]: With dead ends: 821 [2024-09-12 18:56:21,294 INFO L226 Difference]: Without dead ends: 819 [2024-09-12 18:56:21,294 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:56:21,294 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 321 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:21,294 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 439 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:56:21,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-09-12 18:56:21,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 792. [2024-09-12 18:56:21,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 646 states have (on average 1.5263157894736843) internal successors, (986), 695 states have internal predecessors, (986), 87 states have call successors, (87), 11 states have call predecessors, (87), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-09-12 18:56:21,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1158 transitions. [2024-09-12 18:56:21,625 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1158 transitions. Word has length 72 [2024-09-12 18:56:21,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:21,625 INFO L474 AbstractCegarLoop]: Abstraction has 792 states and 1158 transitions. [2024-09-12 18:56:21,625 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:56:21,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:21,626 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1158 transitions. [2024-09-12 18:56:21,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 18:56:21,626 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:21,626 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:21,626 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-09-12 18:56:21,626 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:21,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:21,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1227431432, now seen corresponding path program 1 times [2024-09-12 18:56:21,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:21,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153340188] [2024-09-12 18:56:21,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:21,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:21,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1096343094] [2024-09-12 18:56:21,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:21,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:21,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:21,639 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:21,641 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-09-12 18:56:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:21,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:56:21,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:21,781 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:56:21,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:21,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:21,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153340188] [2024-09-12 18:56:21,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:21,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096343094] [2024-09-12 18:56:21,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096343094] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:21,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:21,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:56:21,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679332624] [2024-09-12 18:56:21,799 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:21,799 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:56:21,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:21,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:56:21,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:56:21,800 INFO L87 Difference]: Start difference. First operand 792 states and 1158 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 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 18:56:22,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:22,403 INFO L93 Difference]: Finished difference Result 835 states and 1174 transitions. [2024-09-12 18:56:22,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:56:22,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 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 71 [2024-09-12 18:56:22,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:22,406 INFO L225 Difference]: With dead ends: 835 [2024-09-12 18:56:22,406 INFO L226 Difference]: Without dead ends: 834 [2024-09-12 18:56:22,406 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:56:22,406 INFO L434 NwaCegarLoop]: 120 mSDtfsCounter, 358 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:22,407 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 359 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:56:22,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-09-12 18:56:22,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 792. [2024-09-12 18:56:22,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 646 states have (on average 1.5139318885448916) internal successors, (978), 695 states have internal predecessors, (978), 87 states have call successors, (87), 11 states have call predecessors, (87), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-09-12 18:56:22,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1150 transitions. [2024-09-12 18:56:22,693 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1150 transitions. Word has length 71 [2024-09-12 18:56:22,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:22,693 INFO L474 AbstractCegarLoop]: Abstraction has 792 states and 1150 transitions. [2024-09-12 18:56:22,693 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 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 18:56:22,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:22,693 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1150 transitions. [2024-09-12 18:56:22,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-09-12 18:56:22,694 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:22,694 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:22,705 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-09-12 18:56:22,894 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-09-12 18:56:22,894 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:22,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:22,895 INFO L85 PathProgramCache]: Analyzing trace with hash 578978837, now seen corresponding path program 1 times [2024-09-12 18:56:22,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:22,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133593554] [2024-09-12 18:56:22,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:22,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:56:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:56:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:56:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:56:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:22,950 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:56:22,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:22,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133593554] [2024-09-12 18:56:22,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133593554] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:22,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:22,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:56:22,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108983620] [2024-09-12 18:56:22,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:22,952 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:56:22,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:22,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:56:22,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:56:22,953 INFO L87 Difference]: Start difference. First operand 792 states and 1150 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:56:23,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:23,378 INFO L93 Difference]: Finished difference Result 835 states and 1205 transitions. [2024-09-12 18:56:23,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:56:23,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2024-09-12 18:56:23,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:23,382 INFO L225 Difference]: With dead ends: 835 [2024-09-12 18:56:23,382 INFO L226 Difference]: Without dead ends: 834 [2024-09-12 18:56:23,382 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 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 18:56:23,382 INFO L434 NwaCegarLoop]: 122 mSDtfsCounter, 20 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:23,382 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 236 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:56:23,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-09-12 18:56:23,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 797. [2024-09-12 18:56:23,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 651 states have (on average 1.5099846390168972) internal successors, (983), 700 states have internal predecessors, (983), 87 states have call successors, (87), 11 states have call predecessors, (87), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-09-12 18:56:23,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1155 transitions. [2024-09-12 18:56:23,741 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1155 transitions. Word has length 74 [2024-09-12 18:56:23,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:23,741 INFO L474 AbstractCegarLoop]: Abstraction has 797 states and 1155 transitions. [2024-09-12 18:56:23,741 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:56:23,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:23,741 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1155 transitions. [2024-09-12 18:56:23,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-09-12 18:56:23,742 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:23,742 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:23,742 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-09-12 18:56:23,742 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:23,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:23,742 INFO L85 PathProgramCache]: Analyzing trace with hash 768474913, now seen corresponding path program 1 times [2024-09-12 18:56:23,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:23,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600449101] [2024-09-12 18:56:23,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:23,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:56:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:56:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:56:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:56:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:23,819 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:56:23,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:23,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600449101] [2024-09-12 18:56:23,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600449101] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:23,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:23,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:56:23,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631562891] [2024-09-12 18:56:23,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:23,820 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:56:23,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:23,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:56:23,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:56:23,821 INFO L87 Difference]: Start difference. First operand 797 states and 1155 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:56:24,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:24,491 INFO L93 Difference]: Finished difference Result 813 states and 1155 transitions. [2024-09-12 18:56:24,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:56:24,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 75 [2024-09-12 18:56:24,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:24,494 INFO L225 Difference]: With dead ends: 813 [2024-09-12 18:56:24,494 INFO L226 Difference]: Without dead ends: 812 [2024-09-12 18:56:24,494 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:56:24,494 INFO L434 NwaCegarLoop]: 96 mSDtfsCounter, 208 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:24,494 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 378 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:56:24,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2024-09-12 18:56:24,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 797. [2024-09-12 18:56:24,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 651 states have (on average 1.5084485407066053) internal successors, (982), 700 states have internal predecessors, (982), 87 states have call successors, (87), 11 states have call predecessors, (87), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-09-12 18:56:24,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1154 transitions. [2024-09-12 18:56:24,786 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1154 transitions. Word has length 75 [2024-09-12 18:56:24,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:24,787 INFO L474 AbstractCegarLoop]: Abstraction has 797 states and 1154 transitions. [2024-09-12 18:56:24,787 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:56:24,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:24,787 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1154 transitions. [2024-09-12 18:56:24,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 18:56:24,787 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:24,787 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:24,787 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-09-12 18:56:24,787 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:24,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:24,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1947081321, now seen corresponding path program 1 times [2024-09-12 18:56:24,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:24,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786037092] [2024-09-12 18:56:24,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:24,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:56:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:56:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:56:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:56:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:24,849 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:56:24,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:24,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786037092] [2024-09-12 18:56:24,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786037092] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:24,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:24,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:56:24,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128383646] [2024-09-12 18:56:24,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:24,850 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:56:24,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:24,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:56:24,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:56:24,851 INFO L87 Difference]: Start difference. First operand 797 states and 1154 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:56:25,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:25,305 INFO L93 Difference]: Finished difference Result 872 states and 1227 transitions. [2024-09-12 18:56:25,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:56:25,306 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), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2024-09-12 18:56:25,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:25,309 INFO L225 Difference]: With dead ends: 872 [2024-09-12 18:56:25,309 INFO L226 Difference]: Without dead ends: 870 [2024-09-12 18:56:25,309 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 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 18:56:25,309 INFO L434 NwaCegarLoop]: 116 mSDtfsCounter, 96 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:25,310 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 265 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:56:25,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-09-12 18:56:25,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 817. [2024-09-12 18:56:25,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 671 states have (on average 1.4992548435171387) internal successors, (1006), 720 states have internal predecessors, (1006), 87 states have call successors, (87), 11 states have call predecessors, (87), 10 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-09-12 18:56:25,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1178 transitions. [2024-09-12 18:56:25,601 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1178 transitions. Word has length 76 [2024-09-12 18:56:25,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:25,601 INFO L474 AbstractCegarLoop]: Abstraction has 817 states and 1178 transitions. [2024-09-12 18:56:25,601 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), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:56:25,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:25,601 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1178 transitions. [2024-09-12 18:56:25,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-09-12 18:56:25,602 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:25,602 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:25,602 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-09-12 18:56:25,602 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:25,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:25,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1194021565, now seen corresponding path program 1 times [2024-09-12 18:56:25,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:25,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462848822] [2024-09-12 18:56:25,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:25,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:25,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885546676] [2024-09-12 18:56:25,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:25,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:25,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:25,614 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:25,616 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-09-12 18:56:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:25,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:56:25,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:25,737 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:56:25,737 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:25,827 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:56:25,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:25,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462848822] [2024-09-12 18:56:25,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:25,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885546676] [2024-09-12 18:56:25,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885546676] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:25,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:56:25,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-09-12 18:56:25,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371754866] [2024-09-12 18:56:25,828 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:25,829 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:56:25,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:25,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:56:25,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:56:25,830 INFO L87 Difference]: Start difference. First operand 817 states and 1178 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:56:27,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:27,511 INFO L93 Difference]: Finished difference Result 960 states and 1273 transitions. [2024-09-12 18:56:27,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:56:27,511 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 77 [2024-09-12 18:56:27,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:27,515 INFO L225 Difference]: With dead ends: 960 [2024-09-12 18:56:27,515 INFO L226 Difference]: Without dead ends: 959 [2024-09-12 18:56:27,516 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=184, Invalid=416, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:56:27,516 INFO L434 NwaCegarLoop]: 112 mSDtfsCounter, 923 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:27,516 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 632 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:56:27,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2024-09-12 18:56:27,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 863. [2024-09-12 18:56:27,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 711 states have (on average 1.479606188466948) internal successors, (1052), 760 states have internal predecessors, (1052), 93 states have call successors, (93), 11 states have call predecessors, (93), 10 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2024-09-12 18:56:27,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1236 transitions. [2024-09-12 18:56:27,896 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1236 transitions. Word has length 77 [2024-09-12 18:56:27,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:27,897 INFO L474 AbstractCegarLoop]: Abstraction has 863 states and 1236 transitions. [2024-09-12 18:56:27,897 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:56:27,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:27,897 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1236 transitions. [2024-09-12 18:56:27,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:56:27,897 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:27,898 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:27,909 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:28,098 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-09-12 18:56:28,098 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:28,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:28,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1640037024, now seen corresponding path program 1 times [2024-09-12 18:56:28,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:28,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074693935] [2024-09-12 18:56:28,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:28,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:28,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [869188140] [2024-09-12 18:56:28,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:28,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:28,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:28,110 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:28,111 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-09-12 18:56:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:28,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:56:28,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:28,250 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:56:28,250 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:28,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:28,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074693935] [2024-09-12 18:56:28,250 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:28,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869188140] [2024-09-12 18:56:28,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869188140] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:28,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:28,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:56:28,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575290740] [2024-09-12 18:56:28,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:28,251 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:56:28,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:28,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:56:28,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:56:28,252 INFO L87 Difference]: Start difference. First operand 863 states and 1236 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:56:29,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:29,022 INFO L93 Difference]: Finished difference Result 898 states and 1260 transitions. [2024-09-12 18:56:29,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:56:29,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 78 [2024-09-12 18:56:29,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:29,026 INFO L225 Difference]: With dead ends: 898 [2024-09-12 18:56:29,026 INFO L226 Difference]: Without dead ends: 897 [2024-09-12 18:56:29,027 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:56:29,027 INFO L434 NwaCegarLoop]: 117 mSDtfsCounter, 270 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:29,027 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 375 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:56:29,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-09-12 18:56:29,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 863. [2024-09-12 18:56:29,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 711 states have (on average 1.4683544303797469) internal successors, (1044), 760 states have internal predecessors, (1044), 93 states have call successors, (93), 11 states have call predecessors, (93), 10 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2024-09-12 18:56:29,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1228 transitions. [2024-09-12 18:56:29,364 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1228 transitions. Word has length 78 [2024-09-12 18:56:29,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:29,364 INFO L474 AbstractCegarLoop]: Abstraction has 863 states and 1228 transitions. [2024-09-12 18:56:29,364 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:56:29,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:29,365 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1228 transitions. [2024-09-12 18:56:29,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-09-12 18:56:29,365 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:29,366 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:29,382 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:29,566 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:29,567 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:29,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:29,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1434056298, now seen corresponding path program 1 times [2024-09-12 18:56:29,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:29,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178027012] [2024-09-12 18:56:29,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:29,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:29,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:29,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:29,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:29,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:29,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:29,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:56:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:29,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:56:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:29,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 18:56:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:29,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:56:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:29,655 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:56:29,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:29,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178027012] [2024-09-12 18:56:29,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178027012] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:29,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924226442] [2024-09-12 18:56:29,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:29,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:29,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:29,658 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:29,660 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-09-12 18:56:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:29,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:56:29,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:29,763 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:56:29,763 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:29,883 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:56:29,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924226442] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:29,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:56:29,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-09-12 18:56:29,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777935242] [2024-09-12 18:56:29,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:29,884 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:56:29,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:29,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:56:29,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:56:29,885 INFO L87 Difference]: Start difference. First operand 863 states and 1228 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-09-12 18:56:31,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:31,932 INFO L93 Difference]: Finished difference Result 965 states and 1267 transitions. [2024-09-12 18:56:31,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:56:31,932 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 84 [2024-09-12 18:56:31,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:31,935 INFO L225 Difference]: With dead ends: 965 [2024-09-12 18:56:31,935 INFO L226 Difference]: Without dead ends: 963 [2024-09-12 18:56:31,936 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:56:31,936 INFO L434 NwaCegarLoop]: 121 mSDtfsCounter, 934 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:31,936 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 784 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-09-12 18:56:31,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-09-12 18:56:32,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 866. [2024-09-12 18:56:32,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 713 states have (on average 1.450210378681627) internal successors, (1034), 761 states have internal predecessors, (1034), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:56:32,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1222 transitions. [2024-09-12 18:56:32,281 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1222 transitions. Word has length 84 [2024-09-12 18:56:32,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:32,281 INFO L474 AbstractCegarLoop]: Abstraction has 866 states and 1222 transitions. [2024-09-12 18:56:32,281 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-09-12 18:56:32,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:32,282 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1222 transitions. [2024-09-12 18:56:32,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 18:56:32,283 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:32,283 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:32,296 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:32,483 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:32,484 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:32,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:32,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1506072148, now seen corresponding path program 1 times [2024-09-12 18:56:32,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:32,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384944751] [2024-09-12 18:56:32,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:32,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:32,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:32,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:32,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:32,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:32,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:32,557 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:56:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:32,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:56:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:32,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 18:56:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:32,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:56:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:32,565 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:56:32,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:32,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384944751] [2024-09-12 18:56:32,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384944751] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:32,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:32,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:56:32,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003536132] [2024-09-12 18:56:32,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:32,566 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:56:32,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:32,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:56:32,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:56:32,567 INFO L87 Difference]: Start difference. First operand 866 states and 1222 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:56:33,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:33,305 INFO L93 Difference]: Finished difference Result 907 states and 1248 transitions. [2024-09-12 18:56:33,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:56:33,305 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 85 [2024-09-12 18:56:33,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:33,308 INFO L225 Difference]: With dead ends: 907 [2024-09-12 18:56:33,308 INFO L226 Difference]: Without dead ends: 905 [2024-09-12 18:56:33,309 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:56:33,309 INFO L434 NwaCegarLoop]: 115 mSDtfsCounter, 298 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:33,309 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 414 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:56:33,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-09-12 18:56:33,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 878. [2024-09-12 18:56:33,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 725 states have (on average 1.4289655172413793) internal successors, (1036), 773 states have internal predecessors, (1036), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:56:33,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1224 transitions. [2024-09-12 18:56:33,656 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1224 transitions. Word has length 85 [2024-09-12 18:56:33,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:33,656 INFO L474 AbstractCegarLoop]: Abstraction has 878 states and 1224 transitions. [2024-09-12 18:56:33,656 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:56:33,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:33,656 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1224 transitions. [2024-09-12 18:56:33,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 18:56:33,657 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:33,657 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:33,657 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-09-12 18:56:33,657 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:33,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:33,657 INFO L85 PathProgramCache]: Analyzing trace with hash 459061484, now seen corresponding path program 1 times [2024-09-12 18:56:33,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:33,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211505312] [2024-09-12 18:56:33,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:33,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:33,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1070146541] [2024-09-12 18:56:33,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:33,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:33,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:33,671 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:33,672 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-09-12 18:56:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:33,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:56:33,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:33,897 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:56:33,898 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:33,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:33,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211505312] [2024-09-12 18:56:33,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:33,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070146541] [2024-09-12 18:56:33,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070146541] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:33,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:33,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:56:33,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274284116] [2024-09-12 18:56:33,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:33,899 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:56:33,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:33,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:56:33,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:56:33,900 INFO L87 Difference]: Start difference. First operand 878 states and 1224 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:56:34,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:34,549 INFO L93 Difference]: Finished difference Result 903 states and 1231 transitions. [2024-09-12 18:56:34,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:56:34,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 85 [2024-09-12 18:56:34,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:34,553 INFO L225 Difference]: With dead ends: 903 [2024-09-12 18:56:34,553 INFO L226 Difference]: Without dead ends: 900 [2024-09-12 18:56:34,553 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:56:34,554 INFO L434 NwaCegarLoop]: 140 mSDtfsCounter, 78 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:34,554 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 369 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:56:34,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-09-12 18:56:34,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 878. [2024-09-12 18:56:34,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 725 states have (on average 1.423448275862069) internal successors, (1032), 773 states have internal predecessors, (1032), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:56:34,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1220 transitions. [2024-09-12 18:56:34,901 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1220 transitions. Word has length 85 [2024-09-12 18:56:34,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:34,901 INFO L474 AbstractCegarLoop]: Abstraction has 878 states and 1220 transitions. [2024-09-12 18:56:34,901 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:56:34,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:34,902 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1220 transitions. [2024-09-12 18:56:34,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-09-12 18:56:34,902 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:34,903 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:34,918 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:35,103 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:35,104 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:35,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:35,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1346004286, now seen corresponding path program 1 times [2024-09-12 18:56:35,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:35,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370284600] [2024-09-12 18:56:35,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:35,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:35,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1056158576] [2024-09-12 18:56:35,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:35,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:35,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:35,118 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:35,119 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-09-12 18:56:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:35,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:56:35,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:56:35,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:35,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:35,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370284600] [2024-09-12 18:56:35,980 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:35,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056158576] [2024-09-12 18:56:35,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056158576] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:35,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:35,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:56:35,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205435417] [2024-09-12 18:56:35,981 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:35,981 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:56:35,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:35,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:56:35,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:56:35,982 INFO L87 Difference]: Start difference. First operand 878 states and 1220 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:56:36,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:36,704 INFO L93 Difference]: Finished difference Result 982 states and 1330 transitions. [2024-09-12 18:56:36,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:56:36,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 86 [2024-09-12 18:56:36,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:36,708 INFO L225 Difference]: With dead ends: 982 [2024-09-12 18:56:36,708 INFO L226 Difference]: Without dead ends: 981 [2024-09-12 18:56:36,708 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:56:36,708 INFO L434 NwaCegarLoop]: 111 mSDtfsCounter, 187 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:36,709 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 474 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:56:36,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2024-09-12 18:56:37,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 887. [2024-09-12 18:56:37,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 734 states have (on average 1.4196185286103542) internal successors, (1042), 782 states have internal predecessors, (1042), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:56:37,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1230 transitions. [2024-09-12 18:56:37,059 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1230 transitions. Word has length 86 [2024-09-12 18:56:37,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:37,060 INFO L474 AbstractCegarLoop]: Abstraction has 887 states and 1230 transitions. [2024-09-12 18:56:37,060 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:56:37,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:37,060 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1230 transitions. [2024-09-12 18:56:37,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-09-12 18:56:37,061 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:37,061 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:37,077 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:37,262 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:37,262 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:37,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:37,262 INFO L85 PathProgramCache]: Analyzing trace with hash 2128112795, now seen corresponding path program 1 times [2024-09-12 18:56:37,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:37,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063713734] [2024-09-12 18:56:37,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:37,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:37,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:37,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:37,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:37,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:37,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:37,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:56:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:37,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:56:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:37,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 18:56:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:37,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:56:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:56:37,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:37,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063713734] [2024-09-12 18:56:37,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063713734] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:37,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961684270] [2024-09-12 18:56:37,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:37,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:37,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:37,352 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:37,353 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-09-12 18:56:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:37,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:56:37,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:37,482 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:56:37,483 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:37,629 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:56:37,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961684270] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:37,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:56:37,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 15 [2024-09-12 18:56:37,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827107459] [2024-09-12 18:56:37,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:37,630 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:56:37,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:37,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:56:37,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:56:37,631 INFO L87 Difference]: Start difference. First operand 887 states and 1230 transitions. Second operand has 16 states, 15 states have (on average 8.866666666666667) internal successors, (133), 16 states have internal predecessors, (133), 7 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-09-12 18:56:38,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:38,873 INFO L93 Difference]: Finished difference Result 908 states and 1239 transitions. [2024-09-12 18:56:38,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 18:56:38,874 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.866666666666667) internal successors, (133), 16 states have internal predecessors, (133), 7 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 88 [2024-09-12 18:56:38,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:38,877 INFO L225 Difference]: With dead ends: 908 [2024-09-12 18:56:38,877 INFO L226 Difference]: Without dead ends: 905 [2024-09-12 18:56:38,878 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 18:56:38,878 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 727 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:38,878 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 428 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:56:38,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-09-12 18:56:39,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 873. [2024-09-12 18:56:39,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 722 states have (on average 1.4016620498614958) internal successors, (1012), 768 states have internal predecessors, (1012), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:56:39,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1200 transitions. [2024-09-12 18:56:39,237 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1200 transitions. Word has length 88 [2024-09-12 18:56:39,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:39,237 INFO L474 AbstractCegarLoop]: Abstraction has 873 states and 1200 transitions. [2024-09-12 18:56:39,237 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.866666666666667) internal successors, (133), 16 states have internal predecessors, (133), 7 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-09-12 18:56:39,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:39,238 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1200 transitions. [2024-09-12 18:56:39,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-09-12 18:56:39,238 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:39,238 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 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 18:56:39,250 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:39,439 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:39,439 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:39,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:39,439 INFO L85 PathProgramCache]: Analyzing trace with hash 724968256, now seen corresponding path program 1 times [2024-09-12 18:56:39,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:39,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949141580] [2024-09-12 18:56:39,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:39,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:39,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [170093575] [2024-09-12 18:56:39,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:39,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:39,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:39,451 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:39,453 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-09-12 18:56:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:39,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:56:39,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:39,767 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:56:39,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:39,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:39,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949141580] [2024-09-12 18:56:39,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:39,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170093575] [2024-09-12 18:56:39,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170093575] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:39,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:56:39,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:56:39,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099931608] [2024-09-12 18:56:39,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:39,768 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:56:39,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:39,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:56:39,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:56:39,769 INFO L87 Difference]: Start difference. First operand 873 states and 1200 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:56:40,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:40,389 INFO L93 Difference]: Finished difference Result 895 states and 1206 transitions. [2024-09-12 18:56:40,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:56:40,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 88 [2024-09-12 18:56:40,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:40,392 INFO L225 Difference]: With dead ends: 895 [2024-09-12 18:56:40,392 INFO L226 Difference]: Without dead ends: 894 [2024-09-12 18:56:40,393 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:56:40,393 INFO L434 NwaCegarLoop]: 135 mSDtfsCounter, 81 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:40,393 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 407 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:56:40,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2024-09-12 18:56:40,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 873. [2024-09-12 18:56:40,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 722 states have (on average 1.4002770083102494) internal successors, (1011), 768 states have internal predecessors, (1011), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:56:40,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1199 transitions. [2024-09-12 18:56:40,757 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1199 transitions. Word has length 88 [2024-09-12 18:56:40,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:40,757 INFO L474 AbstractCegarLoop]: Abstraction has 873 states and 1199 transitions. [2024-09-12 18:56:40,758 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:56:40,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:40,758 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1199 transitions. [2024-09-12 18:56:40,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-09-12 18:56:40,759 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:40,759 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:40,775 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:40,959 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:40,960 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:40,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:40,960 INFO L85 PathProgramCache]: Analyzing trace with hash 825882210, now seen corresponding path program 1 times [2024-09-12 18:56:40,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:40,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440692020] [2024-09-12 18:56:40,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:40,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:41,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:41,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:41,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:41,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:41,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:41,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 18:56:41,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:41,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-09-12 18:56:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:41,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-09-12 18:56:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:41,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-09-12 18:56:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:41,112 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:56:41,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:41,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440692020] [2024-09-12 18:56:41,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440692020] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:41,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382433650] [2024-09-12 18:56:41,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:41,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:41,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:41,115 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:41,116 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-09-12 18:56:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:41,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:56:41,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:41,376 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:56:41,376 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:41,511 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:56:41,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382433650] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:41,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:56:41,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2024-09-12 18:56:41,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82991807] [2024-09-12 18:56:41,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:41,512 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:56:41,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:41,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:56:41,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:56:41,513 INFO L87 Difference]: Start difference. First operand 873 states and 1199 transitions. Second operand has 16 states, 16 states have (on average 6.1875) internal successors, (99), 14 states have internal predecessors, (99), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-09-12 18:56:42,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:42,659 INFO L93 Difference]: Finished difference Result 1435 states and 1969 transitions. [2024-09-12 18:56:42,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:56:42,660 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 14 states have internal predecessors, (99), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 94 [2024-09-12 18:56:42,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:42,662 INFO L225 Difference]: With dead ends: 1435 [2024-09-12 18:56:42,662 INFO L226 Difference]: Without dead ends: 901 [2024-09-12 18:56:42,663 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 195 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=161, Invalid=595, Unknown=0, NotChecked=0, Total=756 [2024-09-12 18:56:42,663 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 611 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:42,663 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 874 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:56:42,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2024-09-12 18:56:43,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 857. [2024-09-12 18:56:43,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 706 states have (on average 1.4036827195467423) internal successors, (991), 752 states have internal predecessors, (991), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:56:43,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1179 transitions. [2024-09-12 18:56:43,026 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1179 transitions. Word has length 94 [2024-09-12 18:56:43,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:43,026 INFO L474 AbstractCegarLoop]: Abstraction has 857 states and 1179 transitions. [2024-09-12 18:56:43,027 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 14 states have internal predecessors, (99), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-09-12 18:56:43,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:43,027 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1179 transitions. [2024-09-12 18:56:43,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-09-12 18:56:43,027 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:43,027 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:43,039 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-09-12 18:56:43,228 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-09-12 18:56:43,228 INFO L399 AbstractCegarLoop]: === Iteration 58 === Targeting mainErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:43,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:43,228 INFO L85 PathProgramCache]: Analyzing trace with hash 468204500, now seen corresponding path program 1 times [2024-09-12 18:56:43,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:43,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543083838] [2024-09-12 18:56:43,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:43,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:43,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2092623397] [2024-09-12 18:56:43,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:43,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:43,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:43,242 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:43,244 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-09-12 18:56:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:43,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 18:56:43,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:43,683 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:56:43,683 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:48,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:48,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543083838] [2024-09-12 18:56:48,558 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:48,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092623397] [2024-09-12 18:56:48,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092623397] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:48,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:48,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:56:48,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527584473] [2024-09-12 18:56:48,559 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:48,559 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:56:48,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:48,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:56:48,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=225, Unknown=1, NotChecked=0, Total=272 [2024-09-12 18:56:48,560 INFO L87 Difference]: Start difference. First operand 857 states and 1179 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:56:50,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:50,025 INFO L93 Difference]: Finished difference Result 1095 states and 1482 transitions. [2024-09-12 18:56:50,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:56:50,025 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 95 [2024-09-12 18:56:50,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:50,028 INFO L225 Difference]: With dead ends: 1095 [2024-09-12 18:56:50,029 INFO L226 Difference]: Without dead ends: 1093 [2024-09-12 18:56:50,029 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=106, Invalid=493, Unknown=1, NotChecked=0, Total=600 [2024-09-12 18:56:50,029 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 608 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:50,029 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 677 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:56:50,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2024-09-12 18:56:50,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 867. [2024-09-12 18:56:50,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 716 states have (on average 1.399441340782123) internal successors, (1002), 762 states have internal predecessors, (1002), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:56:50,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1190 transitions. [2024-09-12 18:56:50,424 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1190 transitions. Word has length 95 [2024-09-12 18:56:50,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:50,424 INFO L474 AbstractCegarLoop]: Abstraction has 867 states and 1190 transitions. [2024-09-12 18:56:50,424 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:56:50,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:50,424 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1190 transitions. [2024-09-12 18:56:50,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 18:56:50,425 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:50,425 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:50,437 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-09-12 18:56:50,625 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-09-12 18:56:50,625 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting mainErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:50,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:50,626 INFO L85 PathProgramCache]: Analyzing trace with hash 861339928, now seen corresponding path program 1 times [2024-09-12 18:56:50,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:50,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532957995] [2024-09-12 18:56:50,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:50,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:50,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [330366361] [2024-09-12 18:56:50,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:50,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:50,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:50,640 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:50,641 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-09-12 18:56:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:50,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:56:50,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:51,119 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:56:51,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:56,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:56,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532957995] [2024-09-12 18:56:56,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:56,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330366361] [2024-09-12 18:56:56,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330366361] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:56,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:56,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:56:56,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577313282] [2024-09-12 18:56:56,231 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:56,232 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:56:56,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:56,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:56:56,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=149, Unknown=1, NotChecked=0, Total=182 [2024-09-12 18:56:56,232 INFO L87 Difference]: Start difference. First operand 867 states and 1190 transitions. Second operand has 9 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:56:57,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:57,843 INFO L93 Difference]: Finished difference Result 1091 states and 1480 transitions. [2024-09-12 18:56:57,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:56:57,843 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 99 [2024-09-12 18:56:57,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:57,846 INFO L225 Difference]: With dead ends: 1091 [2024-09-12 18:56:57,846 INFO L226 Difference]: Without dead ends: 1089 [2024-09-12 18:56:57,846 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=48, Invalid=223, Unknown=1, NotChecked=0, Total=272 [2024-09-12 18:56:57,847 INFO L434 NwaCegarLoop]: 129 mSDtfsCounter, 292 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:57,847 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 651 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:56:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2024-09-12 18:56:58,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 871. [2024-09-12 18:56:58,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 720 states have (on average 1.3972222222222221) internal successors, (1006), 766 states have internal predecessors, (1006), 95 states have call successors, (95), 11 states have call predecessors, (95), 10 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-09-12 18:56:58,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1194 transitions. [2024-09-12 18:56:58,242 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1194 transitions. Word has length 99 [2024-09-12 18:56:58,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:58,242 INFO L474 AbstractCegarLoop]: Abstraction has 871 states and 1194 transitions. [2024-09-12 18:56:58,242 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:56:58,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:58,243 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1194 transitions. [2024-09-12 18:56:58,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 18:56:58,244 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:58,244 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:58,259 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2024-09-12 18:56:58,447 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-09-12 18:56:58,447 INFO L399 AbstractCegarLoop]: === Iteration 60 === Targeting mainErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:56:58,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:58,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1181011014, now seen corresponding path program 1 times [2024-09-12 18:56:58,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:58,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780487720] [2024-09-12 18:56:58,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:58,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:58,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1613526688] [2024-09-12 18:56:58,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:58,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:58,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:58,461 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:58,464 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-09-12 18:56:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:58,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:56:58,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:59,144 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:56:59,145 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:07,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:07,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780487720] [2024-09-12 18:57:07,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:07,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613526688] [2024-09-12 18:57:07,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613526688] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:07,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:57:07,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:57:07,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905495909] [2024-09-12 18:57:07,522 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:07,523 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:57:07,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:07,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:57:07,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=210, Unknown=2, NotChecked=0, Total=272 [2024-09-12 18:57:07,524 INFO L87 Difference]: Start difference. First operand 871 states and 1194 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:57:08,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:08,989 INFO L93 Difference]: Finished difference Result 1190 states and 1599 transitions. [2024-09-12 18:57:08,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:57:08,990 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 101 [2024-09-12 18:57:08,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:08,993 INFO L225 Difference]: With dead ends: 1190 [2024-09-12 18:57:08,993 INFO L226 Difference]: Without dead ends: 1188 [2024-09-12 18:57:08,994 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=125, Invalid=379, Unknown=2, NotChecked=0, Total=506 [2024-09-12 18:57:08,995 INFO L434 NwaCegarLoop]: 109 mSDtfsCounter, 421 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:08,995 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 705 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:57:08,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2024-09-12 18:57:09,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 885. [2024-09-12 18:57:09,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 733 states have (on average 1.3901773533424284) internal successors, (1019), 779 states have internal predecessors, (1019), 96 states have call successors, (96), 11 states have call predecessors, (96), 10 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-09-12 18:57:09,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1209 transitions. [2024-09-12 18:57:09,570 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1209 transitions. Word has length 101 [2024-09-12 18:57:09,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:09,571 INFO L474 AbstractCegarLoop]: Abstraction has 885 states and 1209 transitions. [2024-09-12 18:57:09,571 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:57:09,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:09,571 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1209 transitions. [2024-09-12 18:57:09,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 18:57:09,572 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:09,572 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:09,589 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:09,776 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-09-12 18:57:09,777 INFO L399 AbstractCegarLoop]: === Iteration 61 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:09,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:09,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1412635360, now seen corresponding path program 1 times [2024-09-12 18:57:09,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:09,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120653501] [2024-09-12 18:57:09,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:09,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:09,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:57:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:09,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:57:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:09,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:57:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:09,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:57:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:09,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:57:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:09,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:57:09,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:09,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-09-12 18:57:09,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:09,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 18:57:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:09,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 18:57:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:09,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 18:57:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:09,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-09-12 18:57:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:09,857 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:57:09,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:09,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120653501] [2024-09-12 18:57:09,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120653501] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:57:09,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:57:09,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:57:09,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102231271] [2024-09-12 18:57:09,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:57:09,858 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:57:09,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:09,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:57:09,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:57:09,859 INFO L87 Difference]: Start difference. First operand 885 states and 1209 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:57:10,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:10,685 INFO L93 Difference]: Finished difference Result 1604 states and 2213 transitions. [2024-09-12 18:57:10,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:57:10,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 103 [2024-09-12 18:57:10,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:10,689 INFO L225 Difference]: With dead ends: 1604 [2024-09-12 18:57:10,689 INFO L226 Difference]: Without dead ends: 938 [2024-09-12 18:57:10,690 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 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 18:57:10,690 INFO L434 NwaCegarLoop]: 120 mSDtfsCounter, 19 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:10,690 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 433 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:57:10,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2024-09-12 18:57:11,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 898. [2024-09-12 18:57:11,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 746 states have (on average 1.388739946380697) internal successors, (1036), 792 states have internal predecessors, (1036), 96 states have call successors, (96), 11 states have call predecessors, (96), 10 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-09-12 18:57:11,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1226 transitions. [2024-09-12 18:57:11,118 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1226 transitions. Word has length 103 [2024-09-12 18:57:11,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:11,118 INFO L474 AbstractCegarLoop]: Abstraction has 898 states and 1226 transitions. [2024-09-12 18:57:11,118 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:57:11,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:11,118 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1226 transitions. [2024-09-12 18:57:11,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-09-12 18:57:11,119 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:11,120 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:57:11,120 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-09-12 18:57:11,120 INFO L399 AbstractCegarLoop]: === Iteration 62 === Targeting mainErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:11,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:11,120 INFO L85 PathProgramCache]: Analyzing trace with hash 2043364431, now seen corresponding path program 1 times [2024-09-12 18:57:11,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:11,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160046253] [2024-09-12 18:57:11,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:11,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:11,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230885326] [2024-09-12 18:57:11,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:11,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:11,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:11,135 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:11,136 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-09-12 18:57:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:11,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:57:11,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:11,808 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:57:11,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:13,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:13,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160046253] [2024-09-12 18:57:13,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:13,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230885326] [2024-09-12 18:57:13,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230885326] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:57:13,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:57:13,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:57:13,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239371437] [2024-09-12 18:57:13,864 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:13,864 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:57:13,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:13,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:57:13,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=213, Unknown=3, NotChecked=0, Total=272 [2024-09-12 18:57:13,865 INFO L87 Difference]: Start difference. First operand 898 states and 1226 transitions. Second operand has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:57:15,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:15,452 INFO L93 Difference]: Finished difference Result 1062 states and 1434 transitions. [2024-09-12 18:57:15,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:57:15,453 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 102 [2024-09-12 18:57:15,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:15,456 INFO L225 Difference]: With dead ends: 1062 [2024-09-12 18:57:15,456 INFO L226 Difference]: Without dead ends: 1060 [2024-09-12 18:57:15,456 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=97, Invalid=320, Unknown=3, NotChecked=0, Total=420 [2024-09-12 18:57:15,457 INFO L434 NwaCegarLoop]: 128 mSDtfsCounter, 297 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:15,457 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 799 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:57:15,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2024-09-12 18:57:15,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 900. [2024-09-12 18:57:16,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 748 states have (on average 1.3877005347593583) internal successors, (1038), 794 states have internal predecessors, (1038), 96 states have call successors, (96), 11 states have call predecessors, (96), 10 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-09-12 18:57:16,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1228 transitions. [2024-09-12 18:57:16,002 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1228 transitions. Word has length 102 [2024-09-12 18:57:16,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:16,002 INFO L474 AbstractCegarLoop]: Abstraction has 900 states and 1228 transitions. [2024-09-12 18:57:16,003 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:57:16,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:16,003 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1228 transitions. [2024-09-12 18:57:16,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 18:57:16,004 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:16,004 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:57:16,020 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:16,204 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,52 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:16,204 INFO L399 AbstractCegarLoop]: === Iteration 63 === Targeting mainErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:57:16,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:16,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1080211876, now seen corresponding path program 1 times [2024-09-12 18:57:16,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:16,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858471665] [2024-09-12 18:57:16,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:16,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:16,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [193053174] [2024-09-12 18:57:16,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:16,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:16,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:16,219 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:16,220 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-09-12 18:57:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:16,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-09-12 18:57:16,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:57:17,188 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:17,188 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:57:21,518 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:57:21,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:57:21,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858471665] [2024-09-12 18:57:21,518 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:57:21,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193053174] [2024-09-12 18:57:21,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193053174] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:57:21,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:57:21,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-09-12 18:57:21,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453961490] [2024-09-12 18:57:21,519 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:57:21,519 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:57:21,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:57:21,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:57:21,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:57:21,520 INFO L87 Difference]: Start difference. First operand 900 states and 1228 transitions. Second operand has 22 states, 21 states have (on average 5.857142857142857) internal successors, (123), 22 states have internal predecessors, (123), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:57:40,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:57:59,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:59,213 INFO L93 Difference]: Finished difference Result 1084 states and 1456 transitions. [2024-09-12 18:57:59,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-12 18:57:59,214 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.857142857142857) internal successors, (123), 22 states have internal predecessors, (123), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 103 [2024-09-12 18:57:59,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:59,216 INFO L225 Difference]: With dead ends: 1084 [2024-09-12 18:57:59,216 INFO L226 Difference]: Without dead ends: 1082 [2024-09-12 18:57:59,217 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=489, Invalid=1861, Unknown=2, NotChecked=0, Total=2352 [2024-09-12 18:57:59,217 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 1027 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 2399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:59,217 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 624 Invalid, 2399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 2234 Invalid, 0 Unknown, 0 Unchecked, 22.3s Time] [2024-09-12 18:57:59,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2024-09-12 18:57:59,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1011. [2024-09-12 18:57:59,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 844 states have (on average 1.3874407582938388) internal successors, (1171), 890 states have internal predecessors, (1171), 111 states have call successors, (111), 11 states have call predecessors, (111), 10 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-09-12 18:57:59,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1391 transitions. [2024-09-12 18:57:59,848 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1391 transitions. Word has length 103 [2024-09-12 18:57:59,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:59,848 INFO L474 AbstractCegarLoop]: Abstraction has 1011 states and 1391 transitions. [2024-09-12 18:57:59,849 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.857142857142857) internal successors, (123), 22 states have internal predecessors, (123), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:57:59,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:59,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1391 transitions. [2024-09-12 18:57:59,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-09-12 18:57:59,850 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:59,850 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:57:59,867 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-09-12 18:58:00,051 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,53 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:00,051 INFO L399 AbstractCegarLoop]: === Iteration 64 === Targeting mainErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:00,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:00,052 INFO L85 PathProgramCache]: Analyzing trace with hash 873170417, now seen corresponding path program 1 times [2024-09-12 18:58:00,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:00,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161250985] [2024-09-12 18:58:00,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:00,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:00,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [383236394] [2024-09-12 18:58:00,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:00,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:00,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:00,065 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:58:00,066 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-09-12 18:58:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:00,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-09-12 18:58:00,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:01,146 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:58:01,146 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:04,808 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:58:04,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:04,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161250985] [2024-09-12 18:58:04,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:04,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383236394] [2024-09-12 18:58:04,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383236394] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:58:04,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:58:04,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-09-12 18:58:04,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127694379] [2024-09-12 18:58:04,809 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:04,810 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:58:04,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:04,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:58:04,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:58:04,811 INFO L87 Difference]: Start difference. First operand 1011 states and 1391 transitions. Second operand has 22 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 22 states have internal predecessors, (125), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:58:29,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:29,668 INFO L93 Difference]: Finished difference Result 1077 states and 1451 transitions. [2024-09-12 18:58:29,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 18:58:29,668 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 22 states have internal predecessors, (125), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 104 [2024-09-12 18:58:29,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:29,671 INFO L225 Difference]: With dead ends: 1077 [2024-09-12 18:58:29,671 INFO L226 Difference]: Without dead ends: 1076 [2024-09-12 18:58:29,672 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=346, Invalid=1376, Unknown=0, NotChecked=0, Total=1722 [2024-09-12 18:58:29,672 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 909 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 2488 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 2629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 2488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:29,672 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 799 Invalid, 2629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 2488 Invalid, 0 Unknown, 0 Unchecked, 21.8s Time] [2024-09-12 18:58:29,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2024-09-12 18:58:30,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1012. [2024-09-12 18:58:30,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 845 states have (on average 1.38698224852071) internal successors, (1172), 891 states have internal predecessors, (1172), 111 states have call successors, (111), 11 states have call predecessors, (111), 10 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-09-12 18:58:30,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1392 transitions. [2024-09-12 18:58:30,457 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1392 transitions. Word has length 104 [2024-09-12 18:58:30,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:30,457 INFO L474 AbstractCegarLoop]: Abstraction has 1012 states and 1392 transitions. [2024-09-12 18:58:30,457 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 22 states have internal predecessors, (125), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:58:30,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:30,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1392 transitions. [2024-09-12 18:58:30,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 18:58:30,458 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:30,458 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:58:30,474 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2024-09-12 18:58:30,658 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,54 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:30,659 INFO L399 AbstractCegarLoop]: === Iteration 65 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2024-09-12 18:58:30,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:30,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1770690155, now seen corresponding path program 1 times [2024-09-12 18:58:30,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:30,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600160967] [2024-09-12 18:58:30,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:30,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:30,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [893426800] [2024-09-12 18:58:30,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:30,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:30,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:30,672 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:58:30,675 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-09-12 18:58:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:30,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-09-12 18:58:30,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:58:31,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:33,541 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:58:33,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:33,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600160967] [2024-09-12 18:58:33,541 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:33,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893426800] [2024-09-12 18:58:33,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893426800] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:58:33,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:58:33,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2024-09-12 18:58:33,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770531012] [2024-09-12 18:58:33,541 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:33,542 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:58:33,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:33,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:58:33,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:58:33,543 INFO L87 Difference]: Start difference. First operand 1012 states and 1392 transitions. Second operand has 22 states, 22 states have (on average 5.818181818181818) internal successors, (128), 21 states have internal predecessors, (128), 5 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:58:43,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:58:47,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.88s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:58:48,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:58:54,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:58:58,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:59:00,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []