./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound100.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/egcd2-ll_valuebound100.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 f5697d76d3e5ae232d0e056ee307ac88ca38e983a94c4765bc5d51f77e79d2f7 --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 18:52:29,396 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:52:29,456 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:52:29,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:52:29,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:52:29,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:52:29,490 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:52:29,491 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:52:29,491 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:52:29,494 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:52:29,494 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:52:29,495 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:52:29,495 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:52:29,495 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:52:29,495 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:52:29,496 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:52:29,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:52:29,498 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:52:29,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:52:29,499 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:52:29,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:52:29,499 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:52:29,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:52:29,500 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:52:29,500 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:52:29,500 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:52:29,500 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:52:29,500 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:52:29,500 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:52:29,500 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:52:29,500 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:52:29,501 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:52:29,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:52:29,501 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:52:29,501 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:52:29,501 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:52:29,501 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:52:29,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:52:29,502 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:52:29,502 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:52:29,502 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:52:29,503 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:52:29,504 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5697d76d3e5ae232d0e056ee307ac88ca38e983a94c4765bc5d51f77e79d2f7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:52:29,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:52:29,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:52:29,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:52:29,771 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:52:29,772 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:52:29,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound100.c [2024-09-12 18:52:31,145 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:52:31,315 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:52:31,315 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound100.c [2024-09-12 18:52:31,324 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/6aea856fd/1e03e3f668014739a6160fe3ef824470/FLAGbf677fe7d [2024-09-12 18:52:31,733 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/6aea856fd/1e03e3f668014739a6160fe3ef824470 [2024-09-12 18:52:31,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:52:31,736 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:52:31,736 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:52:31,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:52:31,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:52:31,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:52:31" (1/1) ... [2024-09-12 18:52:31,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e092006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:52:31, skipping insertion in model container [2024-09-12 18:52:31,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:52:31" (1/1) ... [2024-09-12 18:52:31,759 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:52:31,874 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/egcd2-ll_valuebound100.c[490,503] [2024-09-12 18:52:31,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:52:31,905 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:52:31,918 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/egcd2-ll_valuebound100.c[490,503] [2024-09-12 18:52:31,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:52:31,944 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:52:31,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:52:31 WrapperNode [2024-09-12 18:52:31,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:52:31,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:52:31,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:52:31,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:52:31,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:52:31" (1/1) ... [2024-09-12 18:52:31,958 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:52:31" (1/1) ... [2024-09-12 18:52:31,967 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:52:31,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:52:31,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:52:31,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:52:31,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:52:31,976 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:52:31" (1/1) ... [2024-09-12 18:52:31,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:52:31" (1/1) ... [2024-09-12 18:52:31,978 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:52:31" (1/1) ... [2024-09-12 18:52:31,997 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 18:52:31,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:52:31" (1/1) ... [2024-09-12 18:52:31,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:52:31" (1/1) ... [2024-09-12 18:52:32,003 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:52:31" (1/1) ... [2024-09-12 18:52:32,009 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:52:31" (1/1) ... [2024-09-12 18:52:32,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:52:31" (1/1) ... [2024-09-12 18:52:32,011 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:52:31" (1/1) ... [2024-09-12 18:52:32,012 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:52:32,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:52:32,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:52:32,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:52:32,016 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:52:31" (1/1) ... [2024-09-12 18:52:32,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:52:32,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:32,045 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 18:52:32,054 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 18:52:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:52:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:52:32,088 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:52:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:52:32,088 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:52:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:52:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:52:32,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:52:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:52:32,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:52:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:52:32,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:52:32,141 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:52:32,143 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:52:32,949 INFO L? ?]: Removed 195 outVars from TransFormulas that were not future-live. [2024-09-12 18:52:32,949 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:52:32,971 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:52:32,972 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 18:52:32,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:52:32 BoogieIcfgContainer [2024-09-12 18:52:32,972 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:52:32,975 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:52:32,975 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:52:32,978 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:52:32,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:52:31" (1/3) ... [2024-09-12 18:52:32,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58dd774f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:52:32, skipping insertion in model container [2024-09-12 18:52:32,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:52:31" (2/3) ... [2024-09-12 18:52:32,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58dd774f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:52:32, skipping insertion in model container [2024-09-12 18:52:32,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:52:32" (3/3) ... [2024-09-12 18:52:32,981 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound100.c [2024-09-12 18:52:32,993 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:52:32,994 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 65 error locations. [2024-09-12 18:52:33,039 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:52:33,045 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;@23507ca9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:52:33,046 INFO L337 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2024-09-12 18:52:33,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 166 states, 82 states have (on average 1.8902439024390243) internal successors, (155), 148 states have internal predecessors, (155), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:52:33,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 18:52:33,054 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:33,055 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:33,056 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:33,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:33,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1486282811, now seen corresponding path program 1 times [2024-09-12 18:52:33,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:33,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251141470] [2024-09-12 18:52:33,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:33,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:33,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:33,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:33,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:33,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:33,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:33,237 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 18:52:33,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:33,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251141470] [2024-09-12 18:52:33,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251141470] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:33,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:33,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:52:33,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833706197] [2024-09-12 18:52:33,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:33,243 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:52:33,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:33,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:52:33,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:52:33,259 INFO L87 Difference]: Start difference. First operand has 166 states, 82 states have (on average 1.8902439024390243) internal successors, (155), 148 states have internal predecessors, (155), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (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 18:52:33,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:33,303 INFO L93 Difference]: Finished difference Result 325 states and 371 transitions. [2024-09-12 18:52:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:52:33,305 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (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 28 [2024-09-12 18:52:33,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:33,313 INFO L225 Difference]: With dead ends: 325 [2024-09-12 18:52:33,313 INFO L226 Difference]: Without dead ends: 161 [2024-09-12 18:52:33,318 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 18:52:33,321 INFO L434 NwaCegarLoop]: 174 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, 174 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 18:52:33,321 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 174 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:52:33,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-09-12 18:52:33,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2024-09-12 18:52:33,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 80 states have (on average 1.825) internal successors, (146), 145 states have internal predecessors, (146), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:52:33,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 172 transitions. [2024-09-12 18:52:33,373 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 172 transitions. Word has length 28 [2024-09-12 18:52:33,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:33,373 INFO L474 AbstractCegarLoop]: Abstraction has 161 states and 172 transitions. [2024-09-12 18:52:33,374 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (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 18:52:33,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:33,375 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 172 transitions. [2024-09-12 18:52:33,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 18:52:33,376 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:33,376 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:33,376 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:52:33,376 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:33,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:33,377 INFO L85 PathProgramCache]: Analyzing trace with hash 237940991, now seen corresponding path program 1 times [2024-09-12 18:52:33,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:33,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571135854] [2024-09-12 18:52:33,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:33,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:33,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1944223199] [2024-09-12 18:52:33,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:33,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:33,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:33,424 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 18:52:33,428 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 18:52:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:33,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:52:33,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:33,603 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 18:52:33,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:33,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:33,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571135854] [2024-09-12 18:52:33,608 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:33,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944223199] [2024-09-12 18:52:33,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944223199] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:33,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:33,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:52:33,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026655369] [2024-09-12 18:52:33,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:33,609 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:52:33,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:33,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:52:33,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:52:33,610 INFO L87 Difference]: Start difference. First operand 161 states and 172 transitions. Second operand has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:52:33,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:33,901 INFO L93 Difference]: Finished difference Result 161 states and 172 transitions. [2024-09-12 18:52:33,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:52:33,901 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 28 [2024-09-12 18:52:33,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:33,903 INFO L225 Difference]: With dead ends: 161 [2024-09-12 18:52:33,903 INFO L226 Difference]: Without dead ends: 159 [2024-09-12 18:52:33,903 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:52:33,904 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 291 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:33,904 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 247 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:52:33,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-09-12 18:52:33,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2024-09-12 18:52:33,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 80 states have (on average 1.8) internal successors, (144), 143 states have internal predecessors, (144), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:52:33,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 170 transitions. [2024-09-12 18:52:33,920 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 170 transitions. Word has length 28 [2024-09-12 18:52:33,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:33,921 INFO L474 AbstractCegarLoop]: Abstraction has 159 states and 170 transitions. [2024-09-12 18:52:33,921 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:52:33,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:33,921 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 170 transitions. [2024-09-12 18:52:33,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 18:52:33,922 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:33,922 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 18:52:33,935 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:34,126 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:34,127 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:34,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:34,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1213763818, now seen corresponding path program 1 times [2024-09-12 18:52:34,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:34,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389751448] [2024-09-12 18:52:34,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:34,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:34,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [413496049] [2024-09-12 18:52:34,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:34,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:34,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:34,157 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 18:52:34,159 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 18:52:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:34,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:52:34,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:34,306 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:52:34,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:34,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:34,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389751448] [2024-09-12 18:52:34,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:34,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413496049] [2024-09-12 18:52:34,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413496049] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:34,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:34,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:52:34,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634600338] [2024-09-12 18:52:34,564 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:34,565 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:52:34,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:34,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:52:34,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:52:34,566 INFO L87 Difference]: Start difference. First operand 159 states and 170 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:52:34,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:34,926 INFO L93 Difference]: Finished difference Result 159 states and 170 transitions. [2024-09-12 18:52:34,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:52:34,927 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 29 [2024-09-12 18:52:34,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:34,928 INFO L225 Difference]: With dead ends: 159 [2024-09-12 18:52:34,928 INFO L226 Difference]: Without dead ends: 158 [2024-09-12 18:52:34,928 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:52:34,929 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 104 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:34,929 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 269 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:52:34,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-09-12 18:52:34,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-09-12 18:52:34,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 80 states have (on average 1.7875) internal successors, (143), 142 states have internal predecessors, (143), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:52:34,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 169 transitions. [2024-09-12 18:52:34,944 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 169 transitions. Word has length 29 [2024-09-12 18:52:34,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:34,944 INFO L474 AbstractCegarLoop]: Abstraction has 158 states and 169 transitions. [2024-09-12 18:52:34,944 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:52:34,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:34,945 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 169 transitions. [2024-09-12 18:52:34,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 18:52:34,946 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:34,946 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 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 18:52:34,958 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 18:52:35,149 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:35,150 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:35,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:35,151 INFO L85 PathProgramCache]: Analyzing trace with hash 694054053, now seen corresponding path program 1 times [2024-09-12 18:52:35,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:35,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680960090] [2024-09-12 18:52:35,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:35,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:35,283 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:35,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:35,290 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:35,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:35,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:35,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:35,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:35,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:35,363 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:52:35,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:35,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680960090] [2024-09-12 18:52:35,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680960090] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:35,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650872678] [2024-09-12 18:52:35,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:35,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:35,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:35,371 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 18:52:35,372 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 18:52:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:35,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:52:35,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:35,437 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:35,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:35,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650872678] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:35,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:35,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-09-12 18:52:35,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237206926] [2024-09-12 18:52:35,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:35,438 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:52:35,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:35,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:52:35,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:35,439 INFO L87 Difference]: Start difference. First operand 158 states and 169 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:35,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:35,757 INFO L93 Difference]: Finished difference Result 265 states and 299 transitions. [2024-09-12 18:52:35,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:52:35,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 44 [2024-09-12 18:52:35,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:35,759 INFO L225 Difference]: With dead ends: 265 [2024-09-12 18:52:35,760 INFO L226 Difference]: Without dead ends: 255 [2024-09-12 18:52:35,760 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:35,764 INFO L434 NwaCegarLoop]: 125 mSDtfsCounter, 90 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:35,765 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 232 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:52:35,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-09-12 18:52:35,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 211. [2024-09-12 18:52:35,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 129 states have (on average 1.7674418604651163) internal successors, (228), 190 states have internal predecessors, (228), 18 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:52:35,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 262 transitions. [2024-09-12 18:52:35,799 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 262 transitions. Word has length 44 [2024-09-12 18:52:35,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:35,799 INFO L474 AbstractCegarLoop]: Abstraction has 211 states and 262 transitions. [2024-09-12 18:52:35,799 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:35,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:35,800 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 262 transitions. [2024-09-12 18:52:35,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 18:52:35,801 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:35,801 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 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 18:52:35,816 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 18:52:36,001 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:36,002 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:36,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:36,002 INFO L85 PathProgramCache]: Analyzing trace with hash 40837635, now seen corresponding path program 1 times [2024-09-12 18:52:36,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:36,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581252440] [2024-09-12 18:52:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:36,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:36,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [65876292] [2024-09-12 18:52:36,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:36,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:36,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:36,030 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 18:52:36,031 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 18:52:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:52:36,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:36,085 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:36,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:36,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:36,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581252440] [2024-09-12 18:52:36,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:36,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65876292] [2024-09-12 18:52:36,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65876292] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:36,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:36,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:52:36,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741350114] [2024-09-12 18:52:36,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:36,087 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:52:36,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:36,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:52:36,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:52:36,087 INFO L87 Difference]: Start difference. First operand 211 states and 262 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-09-12 18:52:36,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:36,183 INFO L93 Difference]: Finished difference Result 357 states and 458 transitions. [2024-09-12 18:52:36,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:52:36,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 45 [2024-09-12 18:52:36,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:36,187 INFO L225 Difference]: With dead ends: 357 [2024-09-12 18:52:36,187 INFO L226 Difference]: Without dead ends: 349 [2024-09-12 18:52:36,187 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 18:52:36,188 INFO L434 NwaCegarLoop]: 148 mSDtfsCounter, 83 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:36,190 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 286 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:52:36,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-09-12 18:52:36,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 310. [2024-09-12 18:52:36,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 220 states have (on average 1.768181818181818) internal successors, (389), 281 states have internal predecessors, (389), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:36,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 439 transitions. [2024-09-12 18:52:36,235 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 439 transitions. Word has length 45 [2024-09-12 18:52:36,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:36,236 INFO L474 AbstractCegarLoop]: Abstraction has 310 states and 439 transitions. [2024-09-12 18:52:36,236 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-09-12 18:52:36,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:36,236 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 439 transitions. [2024-09-12 18:52:36,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 18:52:36,238 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:36,239 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 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 18:52:36,252 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:36,439 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:36,440 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:36,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:36,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1266020391, now seen corresponding path program 1 times [2024-09-12 18:52:36,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:36,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940291178] [2024-09-12 18:52:36,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:36,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,564 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:52:36,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:36,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940291178] [2024-09-12 18:52:36,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940291178] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:36,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403645092] [2024-09-12 18:52:36,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:36,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:36,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:36,571 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 18:52:36,573 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 18:52:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:36,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:52:36,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:36,653 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:36,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:36,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403645092] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:36,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:36,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-09-12 18:52:36,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204431580] [2024-09-12 18:52:36,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:36,654 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:36,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:36,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:36,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:36,655 INFO L87 Difference]: Start difference. First operand 310 states and 439 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:37,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:37,120 INFO L93 Difference]: Finished difference Result 330 states and 463 transitions. [2024-09-12 18:52:37,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:37,121 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 46 [2024-09-12 18:52:37,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:37,123 INFO L225 Difference]: With dead ends: 330 [2024-09-12 18:52:37,123 INFO L226 Difference]: Without dead ends: 329 [2024-09-12 18:52:37,123 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:37,124 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 60 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:37,124 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 218 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:52:37,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-09-12 18:52:37,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 311. [2024-09-12 18:52:37,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 221 states have (on average 1.7647058823529411) internal successors, (390), 282 states have internal predecessors, (390), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:37,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 440 transitions. [2024-09-12 18:52:37,146 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 440 transitions. Word has length 46 [2024-09-12 18:52:37,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:37,147 INFO L474 AbstractCegarLoop]: Abstraction has 311 states and 440 transitions. [2024-09-12 18:52:37,147 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:37,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:37,147 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 440 transitions. [2024-09-12 18:52:37,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 18:52:37,148 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:37,148 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 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 18:52:37,160 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 18:52:37,348 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:52:37,348 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:37,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:37,349 INFO L85 PathProgramCache]: Analyzing trace with hash 591926659, now seen corresponding path program 1 times [2024-09-12 18:52:37,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:37,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259909846] [2024-09-12 18:52:37,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:37,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,451 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:52:37,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:37,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259909846] [2024-09-12 18:52:37,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259909846] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:37,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981455989] [2024-09-12 18:52:37,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:37,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:37,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:37,456 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 18:52:37,457 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 18:52:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:52:37,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:37,541 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:37,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:37,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981455989] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:37,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:37,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-09-12 18:52:37,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694097725] [2024-09-12 18:52:37,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:37,542 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:37,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:37,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:37,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:37,543 INFO L87 Difference]: Start difference. First operand 311 states and 440 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:38,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:38,006 INFO L93 Difference]: Finished difference Result 330 states and 462 transitions. [2024-09-12 18:52:38,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:38,007 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), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 47 [2024-09-12 18:52:38,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:38,009 INFO L225 Difference]: With dead ends: 330 [2024-09-12 18:52:38,009 INFO L226 Difference]: Without dead ends: 329 [2024-09-12 18:52:38,009 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:38,010 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 59 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:38,010 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 219 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:52:38,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-09-12 18:52:38,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 312. [2024-09-12 18:52:38,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 222 states have (on average 1.7612612612612613) internal successors, (391), 283 states have internal predecessors, (391), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:38,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 441 transitions. [2024-09-12 18:52:38,037 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 441 transitions. Word has length 47 [2024-09-12 18:52:38,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:38,038 INFO L474 AbstractCegarLoop]: Abstraction has 312 states and 441 transitions. [2024-09-12 18:52:38,038 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), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:38,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:38,039 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 441 transitions. [2024-09-12 18:52:38,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 18:52:38,039 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:38,039 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 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 18:52:38,052 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 18:52:38,240 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:38,241 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:38,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:38,242 INFO L85 PathProgramCache]: Analyzing trace with hash 590264325, now seen corresponding path program 1 times [2024-09-12 18:52:38,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:38,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076430861] [2024-09-12 18:52:38,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:38,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,407 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:52:38,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:38,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076430861] [2024-09-12 18:52:38,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076430861] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:38,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603949842] [2024-09-12 18:52:38,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:38,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:38,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:38,412 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 18:52:38,413 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 18:52:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:38,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:52:38,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:38,508 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:38,508 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:38,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603949842] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:38,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:38,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-09-12 18:52:38,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080405153] [2024-09-12 18:52:38,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:38,509 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:52:38,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:38,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:52:38,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:52:38,510 INFO L87 Difference]: Start difference. First operand 312 states and 441 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 18:52:39,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:39,557 INFO L93 Difference]: Finished difference Result 392 states and 461 transitions. [2024-09-12 18:52:39,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:52:39,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 47 [2024-09-12 18:52:39,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:39,560 INFO L225 Difference]: With dead ends: 392 [2024-09-12 18:52:39,560 INFO L226 Difference]: Without dead ends: 391 [2024-09-12 18:52:39,560 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:52:39,560 INFO L434 NwaCegarLoop]: 100 mSDtfsCounter, 425 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:39,561 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 335 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:52:39,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-09-12 18:52:39,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 312. [2024-09-12 18:52:39,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 222 states have (on average 1.7567567567567568) internal successors, (390), 283 states have internal predecessors, (390), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:39,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 440 transitions. [2024-09-12 18:52:39,603 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 440 transitions. Word has length 47 [2024-09-12 18:52:39,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:39,603 INFO L474 AbstractCegarLoop]: Abstraction has 312 states and 440 transitions. [2024-09-12 18:52:39,603 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 18:52:39,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:39,603 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 440 transitions. [2024-09-12 18:52:39,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 18:52:39,604 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:39,604 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 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 18:52:39,621 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 18:52:39,808 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:39,809 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:39,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:39,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1169857449, now seen corresponding path program 1 times [2024-09-12 18:52:39,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:39,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071212306] [2024-09-12 18:52:39,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:39,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,907 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:52:39,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:39,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071212306] [2024-09-12 18:52:39,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071212306] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:39,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288741939] [2024-09-12 18:52:39,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:39,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:39,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:39,909 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 18:52:39,910 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 18:52:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:39,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:39,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:39,969 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:39,969 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:39,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288741939] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:39,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:39,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-09-12 18:52:39,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437902978] [2024-09-12 18:52:39,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:39,971 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:39,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:39,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:39,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:39,971 INFO L87 Difference]: Start difference. First operand 312 states and 440 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:40,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:40,775 INFO L93 Difference]: Finished difference Result 363 states and 470 transitions. [2024-09-12 18:52:40,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:40,776 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), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 48 [2024-09-12 18:52:40,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:40,777 INFO L225 Difference]: With dead ends: 363 [2024-09-12 18:52:40,777 INFO L226 Difference]: Without dead ends: 359 [2024-09-12 18:52:40,777 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:40,778 INFO L434 NwaCegarLoop]: 119 mSDtfsCounter, 149 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:40,778 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 241 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:52:40,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-09-12 18:52:40,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 313. [2024-09-12 18:52:40,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 223 states have (on average 1.7309417040358743) internal successors, (386), 284 states have internal predecessors, (386), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:40,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 436 transitions. [2024-09-12 18:52:40,809 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 436 transitions. Word has length 48 [2024-09-12 18:52:40,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:40,809 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 436 transitions. [2024-09-12 18:52:40,809 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), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:40,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:40,810 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 436 transitions. [2024-09-12 18:52:40,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 18:52:40,810 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:40,810 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 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 18:52:40,822 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 18:52:41,012 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:41,013 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:41,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:41,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1118324981, now seen corresponding path program 1 times [2024-09-12 18:52:41,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:41,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525995160] [2024-09-12 18:52:41,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:41,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:41,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1685422164] [2024-09-12 18:52:41,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:41,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:41,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:41,023 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 18:52:41,024 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 18:52:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:41,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:52:41,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:41,111 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:41,111 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:41,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:41,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525995160] [2024-09-12 18:52:41,111 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:41,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685422164] [2024-09-12 18:52:41,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685422164] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:41,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:41,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:52:41,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246963337] [2024-09-12 18:52:41,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:41,112 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:52:41,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:41,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:52:41,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:52:41,113 INFO L87 Difference]: Start difference. First operand 313 states and 436 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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 18:52:41,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:41,901 INFO L93 Difference]: Finished difference Result 386 states and 454 transitions. [2024-09-12 18:52:41,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:52:41,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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 48 [2024-09-12 18:52:41,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:41,903 INFO L225 Difference]: With dead ends: 386 [2024-09-12 18:52:41,903 INFO L226 Difference]: Without dead ends: 385 [2024-09-12 18:52:41,903 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 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 18:52:41,904 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 447 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:41,904 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 315 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:52:41,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-09-12 18:52:41,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 313. [2024-09-12 18:52:41,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 223 states have (on average 1.7264573991031391) internal successors, (385), 284 states have internal predecessors, (385), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:41,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 435 transitions. [2024-09-12 18:52:41,935 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 435 transitions. Word has length 48 [2024-09-12 18:52:41,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:41,936 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 435 transitions. [2024-09-12 18:52:41,936 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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 18:52:41,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:41,936 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 435 transitions. [2024-09-12 18:52:41,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:52:41,937 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:41,937 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 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 18:52:41,952 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 18:52:42,141 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 18:52:42,141 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:42,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:42,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1905842757, now seen corresponding path program 1 times [2024-09-12 18:52:42,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:42,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180272247] [2024-09-12 18:52:42,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:42,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,243 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:52:42,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:42,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180272247] [2024-09-12 18:52:42,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180272247] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:42,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617761118] [2024-09-12 18:52:42,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:42,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:42,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:42,245 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 18:52:42,250 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 18:52:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:42,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:42,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:42,388 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:42,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:42,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617761118] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:42,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:42,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-09-12 18:52:42,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307827181] [2024-09-12 18:52:42,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:42,390 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:42,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:42,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:42,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:42,390 INFO L87 Difference]: Start difference. First operand 313 states and 435 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:43,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:43,530 INFO L93 Difference]: Finished difference Result 361 states and 463 transitions. [2024-09-12 18:52:43,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:43,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 49 [2024-09-12 18:52:43,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:43,536 INFO L225 Difference]: With dead ends: 361 [2024-09-12 18:52:43,537 INFO L226 Difference]: Without dead ends: 357 [2024-09-12 18:52:43,537 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:43,538 INFO L434 NwaCegarLoop]: 124 mSDtfsCounter, 146 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:43,538 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 245 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:52:43,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-09-12 18:52:43,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 314. [2024-09-12 18:52:43,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 224 states have (on average 1.7008928571428572) internal successors, (381), 285 states have internal predecessors, (381), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:43,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 431 transitions. [2024-09-12 18:52:43,587 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 431 transitions. Word has length 49 [2024-09-12 18:52:43,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:43,587 INFO L474 AbstractCegarLoop]: Abstraction has 314 states and 431 transitions. [2024-09-12 18:52:43,587 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:52:43,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:43,588 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 431 transitions. [2024-09-12 18:52:43,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 18:52:43,589 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:43,589 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:52:43,605 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 18:52:43,789 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 18:52:43,790 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:43,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:43,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1288319843, now seen corresponding path program 1 times [2024-09-12 18:52:43,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:43,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270140902] [2024-09-12 18:52:43,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:43,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:43,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137057670] [2024-09-12 18:52:43,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:43,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:43,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:43,805 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 18:52:43,806 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 18:52:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:43,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:52:43,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:43,874 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:43,875 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:43,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:43,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270140902] [2024-09-12 18:52:43,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:43,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137057670] [2024-09-12 18:52:43,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137057670] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:43,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:43,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:52:43,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845194595] [2024-09-12 18:52:43,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:43,876 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:52:43,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:43,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:52:43,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:52:43,876 INFO L87 Difference]: Start difference. First operand 314 states and 431 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-09-12 18:52:44,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:44,047 INFO L93 Difference]: Finished difference Result 352 states and 436 transitions. [2024-09-12 18:52:44,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:52:44,048 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 52 [2024-09-12 18:52:44,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:44,051 INFO L225 Difference]: With dead ends: 352 [2024-09-12 18:52:44,051 INFO L226 Difference]: Without dead ends: 350 [2024-09-12 18:52:44,051 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 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 18:52:44,052 INFO L434 NwaCegarLoop]: 154 mSDtfsCounter, 70 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:44,052 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 584 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:52:44,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-09-12 18:52:44,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 318. [2024-09-12 18:52:44,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 227 states have (on average 1.6916299559471366) internal successors, (384), 288 states have internal predecessors, (384), 26 states have call successors, (26), 5 states have call predecessors, (26), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:44,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 434 transitions. [2024-09-12 18:52:44,116 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 434 transitions. Word has length 52 [2024-09-12 18:52:44,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:44,117 INFO L474 AbstractCegarLoop]: Abstraction has 318 states and 434 transitions. [2024-09-12 18:52:44,117 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-09-12 18:52:44,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:44,117 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 434 transitions. [2024-09-12 18:52:44,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 18:52:44,118 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:44,118 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:52:44,133 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 18:52:44,322 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:44,323 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:44,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:44,324 INFO L85 PathProgramCache]: Analyzing trace with hash -371140379, now seen corresponding path program 1 times [2024-09-12 18:52:44,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:44,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506124188] [2024-09-12 18:52:44,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:44,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,384 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:52:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:52:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,419 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:52:44,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:44,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506124188] [2024-09-12 18:52:44,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506124188] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:44,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636180538] [2024-09-12 18:52:44,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:44,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:44,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:44,422 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 18:52:44,424 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 18:52:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:52:44,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:44,631 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-09-12 18:52:44,631 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:44,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636180538] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:44,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:52:44,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 11 [2024-09-12 18:52:44,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300817335] [2024-09-12 18:52:44,782 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:44,782 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:52:44,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:44,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:52:44,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:52:44,783 INFO L87 Difference]: Start difference. First operand 318 states and 434 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 8 states have internal predecessors, (40), 6 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:52:45,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:45,500 INFO L93 Difference]: Finished difference Result 357 states and 459 transitions. [2024-09-12 18:52:45,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:52:45,500 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 8 states have internal predecessors, (40), 6 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 53 [2024-09-12 18:52:45,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:45,502 INFO L225 Difference]: With dead ends: 357 [2024-09-12 18:52:45,503 INFO L226 Difference]: Without dead ends: 327 [2024-09-12 18:52:45,504 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:52:45,504 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 429 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:45,504 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 457 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:52:45,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-09-12 18:52:45,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 316. [2024-09-12 18:52:45,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 224 states have (on average 1.6696428571428572) internal successors, (374), 285 states have internal predecessors, (374), 26 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:45,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 424 transitions. [2024-09-12 18:52:45,556 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 424 transitions. Word has length 53 [2024-09-12 18:52:45,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:45,556 INFO L474 AbstractCegarLoop]: Abstraction has 316 states and 424 transitions. [2024-09-12 18:52:45,556 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 8 states have internal predecessors, (40), 6 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:52:45,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:45,557 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 424 transitions. [2024-09-12 18:52:45,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 18:52:45,557 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:45,557 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:52:45,573 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 18:52:45,760 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 18:52:45,760 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:45,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:45,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1124627202, now seen corresponding path program 1 times [2024-09-12 18:52:45,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:45,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819638598] [2024-09-12 18:52:45,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:45,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:45,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1177553313] [2024-09-12 18:52:45,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:45,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:45,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:45,772 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 18:52:45,773 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 18:52:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:52:45,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:45,829 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:45,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:45,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:45,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819638598] [2024-09-12 18:52:45,830 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:45,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177553313] [2024-09-12 18:52:45,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177553313] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:45,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:45,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:52:45,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55770479] [2024-09-12 18:52:45,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:45,831 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:52:45,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:45,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:52:45,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:52:45,832 INFO L87 Difference]: Start difference. First operand 316 states and 424 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:52:45,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:45,978 INFO L93 Difference]: Finished difference Result 349 states and 435 transitions. [2024-09-12 18:52:45,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:52:45,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2024-09-12 18:52:45,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:45,980 INFO L225 Difference]: With dead ends: 349 [2024-09-12 18:52:45,980 INFO L226 Difference]: Without dead ends: 347 [2024-09-12 18:52:45,981 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 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 18:52:45,981 INFO L434 NwaCegarLoop]: 161 mSDtfsCounter, 66 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:45,981 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 304 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:52:45,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-09-12 18:52:46,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 316. [2024-09-12 18:52:46,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 224 states have (on average 1.6517857142857142) internal successors, (370), 285 states have internal predecessors, (370), 26 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:46,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 420 transitions. [2024-09-12 18:52:46,031 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 420 transitions. Word has length 54 [2024-09-12 18:52:46,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:46,031 INFO L474 AbstractCegarLoop]: Abstraction has 316 states and 420 transitions. [2024-09-12 18:52:46,031 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:52:46,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:46,032 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 420 transitions. [2024-09-12 18:52:46,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 18:52:46,032 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:46,032 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:52:46,048 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 18:52:46,236 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 18:52:46,237 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:46,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:46,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1565020512, now seen corresponding path program 1 times [2024-09-12 18:52:46,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:46,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865904660] [2024-09-12 18:52:46,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:46,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:46,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1153617505] [2024-09-12 18:52:46,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:46,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:46,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:46,249 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 18:52:46,250 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 18:52:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:46,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:46,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:46,339 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:46,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:46,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:46,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865904660] [2024-09-12 18:52:46,340 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:46,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153617505] [2024-09-12 18:52:46,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153617505] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:46,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:46,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:52:46,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049064602] [2024-09-12 18:52:46,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:46,341 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:46,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:46,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:46,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:46,342 INFO L87 Difference]: Start difference. First operand 316 states and 420 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, (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 18:52:46,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:46,845 INFO L93 Difference]: Finished difference Result 330 states and 421 transitions. [2024-09-12 18:52:46,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:46,846 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, (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 56 [2024-09-12 18:52:46,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:46,848 INFO L225 Difference]: With dead ends: 330 [2024-09-12 18:52:46,848 INFO L226 Difference]: Without dead ends: 329 [2024-09-12 18:52:46,848 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:46,848 INFO L434 NwaCegarLoop]: 112 mSDtfsCounter, 150 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:46,849 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 233 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:52:46,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-09-12 18:52:46,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 316. [2024-09-12 18:52:46,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 224 states have (on average 1.6428571428571428) internal successors, (368), 285 states have internal predecessors, (368), 26 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:46,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 418 transitions. [2024-09-12 18:52:46,894 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 418 transitions. Word has length 56 [2024-09-12 18:52:46,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:46,894 INFO L474 AbstractCegarLoop]: Abstraction has 316 states and 418 transitions. [2024-09-12 18:52:46,894 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, (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 18:52:46,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:46,895 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 418 transitions. [2024-09-12 18:52:46,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-09-12 18:52:46,895 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:46,895 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:52:46,909 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 18:52:47,095 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 18:52:47,096 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:47,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:47,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1270995715, now seen corresponding path program 1 times [2024-09-12 18:52:47,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:47,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828420838] [2024-09-12 18:52:47,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:47,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:47,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [519084208] [2024-09-12 18:52:47,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:47,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:47,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:47,105 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 18:52:47,107 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 18:52:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:47,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:47,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:47,191 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:47,191 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:47,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:47,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828420838] [2024-09-12 18:52:47,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:47,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519084208] [2024-09-12 18:52:47,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519084208] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:47,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:47,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:52:47,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79850807] [2024-09-12 18:52:47,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:47,192 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:47,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:47,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:47,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:47,193 INFO L87 Difference]: Start difference. First operand 316 states and 418 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, (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 18:52:47,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:47,547 INFO L93 Difference]: Finished difference Result 330 states and 419 transitions. [2024-09-12 18:52:47,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:47,547 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, (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 57 [2024-09-12 18:52:47,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:47,549 INFO L225 Difference]: With dead ends: 330 [2024-09-12 18:52:47,549 INFO L226 Difference]: Without dead ends: 329 [2024-09-12 18:52:47,549 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 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 18:52:47,550 INFO L434 NwaCegarLoop]: 112 mSDtfsCounter, 149 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:47,550 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 233 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:52:47,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-09-12 18:52:47,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 316. [2024-09-12 18:52:47,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 224 states have (on average 1.6339285714285714) internal successors, (366), 285 states have internal predecessors, (366), 26 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:47,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 416 transitions. [2024-09-12 18:52:47,605 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 416 transitions. Word has length 57 [2024-09-12 18:52:47,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:47,605 INFO L474 AbstractCegarLoop]: Abstraction has 316 states and 416 transitions. [2024-09-12 18:52:47,605 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, (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 18:52:47,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:47,606 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 416 transitions. [2024-09-12 18:52:47,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 18:52:47,606 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:47,606 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:52:47,621 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 18:52:47,806 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 18:52:47,807 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:47,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:47,807 INFO L85 PathProgramCache]: Analyzing trace with hash 746161602, now seen corresponding path program 1 times [2024-09-12 18:52:47,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:47,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140263993] [2024-09-12 18:52:47,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:47,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:47,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1805632814] [2024-09-12 18:52:47,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:47,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:47,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:47,816 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 18:52:47,817 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 18:52:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:47,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:47,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:47,900 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:47,900 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:47,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:47,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140263993] [2024-09-12 18:52:47,901 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:47,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805632814] [2024-09-12 18:52:47,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805632814] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:47,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:47,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:52:47,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477542371] [2024-09-12 18:52:47,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:47,901 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:47,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:47,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:47,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:47,902 INFO L87 Difference]: Start difference. First operand 316 states and 416 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:52:48,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:48,488 INFO L93 Difference]: Finished difference Result 346 states and 427 transitions. [2024-09-12 18:52:48,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:48,488 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2024-09-12 18:52:48,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:48,490 INFO L225 Difference]: With dead ends: 346 [2024-09-12 18:52:48,490 INFO L226 Difference]: Without dead ends: 345 [2024-09-12 18:52:48,490 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 55 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 18:52:48,491 INFO L434 NwaCegarLoop]: 145 mSDtfsCounter, 67 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:48,491 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 389 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:52:48,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-09-12 18:52:48,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 316. [2024-09-12 18:52:48,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 224 states have (on average 1.625) internal successors, (364), 285 states have internal predecessors, (364), 26 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:48,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 414 transitions. [2024-09-12 18:52:48,540 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 414 transitions. Word has length 58 [2024-09-12 18:52:48,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:48,540 INFO L474 AbstractCegarLoop]: Abstraction has 316 states and 414 transitions. [2024-09-12 18:52:48,540 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:52:48,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:48,540 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 414 transitions. [2024-09-12 18:52:48,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 18:52:48,542 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:48,542 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:52:48,554 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 18:52:48,742 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:48,742 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:48,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:48,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1656173285, now seen corresponding path program 1 times [2024-09-12 18:52:48,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:48,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467754817] [2024-09-12 18:52:48,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:48,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:48,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1702015056] [2024-09-12 18:52:48,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:48,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:48,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:48,756 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 18:52:48,757 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 18:52:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:48,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:48,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:48,884 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:48,885 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:48,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:48,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467754817] [2024-09-12 18:52:48,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:48,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702015056] [2024-09-12 18:52:48,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702015056] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:48,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:48,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:52:48,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326906893] [2024-09-12 18:52:48,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:48,885 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:48,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:48,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:48,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:48,886 INFO L87 Difference]: Start difference. First operand 316 states and 414 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:52:49,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:49,789 INFO L93 Difference]: Finished difference Result 346 states and 425 transitions. [2024-09-12 18:52:49,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:49,790 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2024-09-12 18:52:49,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:49,792 INFO L225 Difference]: With dead ends: 346 [2024-09-12 18:52:49,792 INFO L226 Difference]: Without dead ends: 345 [2024-09-12 18:52:49,793 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 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 18:52:49,793 INFO L434 NwaCegarLoop]: 147 mSDtfsCounter, 67 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:49,793 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 391 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:52:49,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-09-12 18:52:49,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 316. [2024-09-12 18:52:49,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 224 states have (on average 1.6160714285714286) internal successors, (362), 285 states have internal predecessors, (362), 26 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:49,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 412 transitions. [2024-09-12 18:52:49,842 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 412 transitions. Word has length 59 [2024-09-12 18:52:49,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:49,843 INFO L474 AbstractCegarLoop]: Abstraction has 316 states and 412 transitions. [2024-09-12 18:52:49,843 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:52:49,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:49,843 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 412 transitions. [2024-09-12 18:52:49,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 18:52:49,843 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:49,843 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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 18:52:49,857 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 18:52:50,044 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:52:50,045 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:50,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:50,045 INFO L85 PathProgramCache]: Analyzing trace with hash -52484277, now seen corresponding path program 1 times [2024-09-12 18:52:50,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:50,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253437919] [2024-09-12 18:52:50,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:50,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:50,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [19155447] [2024-09-12 18:52:50,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:50,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:50,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:50,056 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 18:52:50,066 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 18:52:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:50,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:52:50,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:50,197 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:52:50,198 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:50,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:50,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253437919] [2024-09-12 18:52:50,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:50,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19155447] [2024-09-12 18:52:50,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19155447] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:50,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:50,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:52:50,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155041048] [2024-09-12 18:52:50,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:50,199 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:52:50,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:50,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:52:50,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:52:50,200 INFO L87 Difference]: Start difference. First operand 316 states and 412 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, (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 18:52:50,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:50,593 INFO L93 Difference]: Finished difference Result 335 states and 418 transitions. [2024-09-12 18:52:50,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:52:50,594 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, (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 63 [2024-09-12 18:52:50,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:50,599 INFO L225 Difference]: With dead ends: 335 [2024-09-12 18:52:50,599 INFO L226 Difference]: Without dead ends: 333 [2024-09-12 18:52:50,599 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 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 18:52:50,600 INFO L434 NwaCegarLoop]: 136 mSDtfsCounter, 47 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:50,600 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 495 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:52:50,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-09-12 18:52:50,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 320. [2024-09-12 18:52:50,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 227 states have (on average 1.6079295154185023) internal successors, (365), 288 states have internal predecessors, (365), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:50,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 415 transitions. [2024-09-12 18:52:50,646 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 415 transitions. Word has length 63 [2024-09-12 18:52:50,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:50,647 INFO L474 AbstractCegarLoop]: Abstraction has 320 states and 415 transitions. [2024-09-12 18:52:50,647 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, (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 18:52:50,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:50,647 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 415 transitions. [2024-09-12 18:52:50,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:52:50,648 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:50,648 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:50,661 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 18:52:50,851 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:50,851 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:50,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:50,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1273080342, now seen corresponding path program 1 times [2024-09-12 18:52:50,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:50,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277235610] [2024-09-12 18:52:50,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:50,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:50,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440561337] [2024-09-12 18:52:50,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:50,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:50,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:50,869 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 18:52:50,870 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 18:52:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:50,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:52:50,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:51,000 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 18:52:51,001 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:51,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:51,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277235610] [2024-09-12 18:52:51,001 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:51,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440561337] [2024-09-12 18:52:51,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440561337] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:51,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:51,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:52:51,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983473575] [2024-09-12 18:52:51,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:51,001 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:51,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:51,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:51,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:51,002 INFO L87 Difference]: Start difference. First operand 320 states and 415 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:52:51,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:51,329 INFO L93 Difference]: Finished difference Result 344 states and 436 transitions. [2024-09-12 18:52:51,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:51,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 78 [2024-09-12 18:52:51,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:51,331 INFO L225 Difference]: With dead ends: 344 [2024-09-12 18:52:51,331 INFO L226 Difference]: Without dead ends: 343 [2024-09-12 18:52:51,331 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 75 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 18:52:51,331 INFO L434 NwaCegarLoop]: 130 mSDtfsCounter, 84 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:51,332 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 240 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:52:51,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-09-12 18:52:51,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 320. [2024-09-12 18:52:51,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 227 states have (on average 1.5991189427312775) internal successors, (363), 288 states have internal predecessors, (363), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:51,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 413 transitions. [2024-09-12 18:52:51,385 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 413 transitions. Word has length 78 [2024-09-12 18:52:51,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:51,386 INFO L474 AbstractCegarLoop]: Abstraction has 320 states and 413 transitions. [2024-09-12 18:52:51,386 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:52:51,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:51,386 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 413 transitions. [2024-09-12 18:52:51,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 18:52:51,387 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:51,387 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:51,406 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 18:52:51,587 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:51,588 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:51,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:51,588 INFO L85 PathProgramCache]: Analyzing trace with hash 810785063, now seen corresponding path program 1 times [2024-09-12 18:52:51,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:51,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413055345] [2024-09-12 18:52:51,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:51,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:51,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2053939990] [2024-09-12 18:52:51,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:51,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:51,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:51,605 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 18:52:51,607 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 18:52:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:51,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:52:51,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:51,829 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 18:52:51,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:51,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:51,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413055345] [2024-09-12 18:52:51,829 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:51,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053939990] [2024-09-12 18:52:51,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053939990] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:51,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:51,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:52:51,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421438610] [2024-09-12 18:52:51,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:51,839 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:51,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:51,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:51,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:51,840 INFO L87 Difference]: Start difference. First operand 320 states and 413 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:52:53,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:53,087 INFO L93 Difference]: Finished difference Result 344 states and 434 transitions. [2024-09-12 18:52:53,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:53,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 79 [2024-09-12 18:52:53,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:53,089 INFO L225 Difference]: With dead ends: 344 [2024-09-12 18:52:53,089 INFO L226 Difference]: Without dead ends: 343 [2024-09-12 18:52:53,089 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 76 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 18:52:53,089 INFO L434 NwaCegarLoop]: 131 mSDtfsCounter, 82 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:53,090 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 241 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 1 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 18:52:53,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-09-12 18:52:53,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 320. [2024-09-12 18:52:53,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 227 states have (on average 1.5903083700440528) internal successors, (361), 288 states have internal predecessors, (361), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:53,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 411 transitions. [2024-09-12 18:52:53,135 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 411 transitions. Word has length 79 [2024-09-12 18:52:53,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:53,136 INFO L474 AbstractCegarLoop]: Abstraction has 320 states and 411 transitions. [2024-09-12 18:52:53,136 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:52:53,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:53,136 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 411 transitions. [2024-09-12 18:52:53,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-09-12 18:52:53,136 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:53,136 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:53,148 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 18:52:53,337 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 18:52:53,337 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:53,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:53,337 INFO L85 PathProgramCache]: Analyzing trace with hash -635466696, now seen corresponding path program 1 times [2024-09-12 18:52:53,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:53,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231503676] [2024-09-12 18:52:53,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:53,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:53,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1680695703] [2024-09-12 18:52:53,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:53,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:53,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:53,351 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 18:52:53,361 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 18:52:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:53,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:53,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:53,444 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 18:52:53,444 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:53,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:53,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231503676] [2024-09-12 18:52:53,445 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:53,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680695703] [2024-09-12 18:52:53,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680695703] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:53,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:53,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:52:53,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343659373] [2024-09-12 18:52:53,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:53,445 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:53,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:53,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:53,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:53,446 INFO L87 Difference]: Start difference. First operand 320 states and 411 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:52:53,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:53,981 INFO L93 Difference]: Finished difference Result 337 states and 422 transitions. [2024-09-12 18:52:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:53,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 80 [2024-09-12 18:52:53,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:53,983 INFO L225 Difference]: With dead ends: 337 [2024-09-12 18:52:53,983 INFO L226 Difference]: Without dead ends: 335 [2024-09-12 18:52:53,983 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 77 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 18:52:53,983 INFO L434 NwaCegarLoop]: 149 mSDtfsCounter, 87 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:53,984 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 275 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:52:53,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-09-12 18:52:54,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 320. [2024-09-12 18:52:54,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 227 states have (on average 1.5726872246696035) internal successors, (357), 288 states have internal predecessors, (357), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:54,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 407 transitions. [2024-09-12 18:52:54,039 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 407 transitions. Word has length 80 [2024-09-12 18:52:54,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:54,040 INFO L474 AbstractCegarLoop]: Abstraction has 320 states and 407 transitions. [2024-09-12 18:52:54,040 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:52:54,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:54,040 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 407 transitions. [2024-09-12 18:52:54,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 18:52:54,041 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:54,041 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:54,066 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 18:52:54,241 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:54,242 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:54,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:54,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1775369033, now seen corresponding path program 1 times [2024-09-12 18:52:54,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:54,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986801297] [2024-09-12 18:52:54,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:54,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:54,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [882649821] [2024-09-12 18:52:54,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:54,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:54,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:54,253 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 18:52:54,254 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 18:52:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:54,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:54,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:54,423 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 18:52:54,423 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:52:54,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:54,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986801297] [2024-09-12 18:52:54,423 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:54,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882649821] [2024-09-12 18:52:54,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882649821] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:54,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:54,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:52:54,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418879026] [2024-09-12 18:52:54,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:54,424 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:52:54,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:54,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:52:54,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:52:54,424 INFO L87 Difference]: Start difference. First operand 320 states and 407 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:52:54,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:54,912 INFO L93 Difference]: Finished difference Result 337 states and 418 transitions. [2024-09-12 18:52:54,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:52:54,912 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 81 [2024-09-12 18:52:54,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:54,914 INFO L225 Difference]: With dead ends: 337 [2024-09-12 18:52:54,914 INFO L226 Difference]: Without dead ends: 335 [2024-09-12 18:52:54,914 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 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 18:52:54,914 INFO L434 NwaCegarLoop]: 152 mSDtfsCounter, 86 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:54,914 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 278 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:52:54,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-09-12 18:52:54,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 320. [2024-09-12 18:52:54,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 227 states have (on average 1.5550660792951543) internal successors, (353), 288 states have internal predecessors, (353), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:52:54,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 403 transitions. [2024-09-12 18:52:54,973 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 403 transitions. Word has length 81 [2024-09-12 18:52:54,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:54,973 INFO L474 AbstractCegarLoop]: Abstraction has 320 states and 403 transitions. [2024-09-12 18:52:54,973 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:52:54,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:54,973 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 403 transitions. [2024-09-12 18:52:54,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-09-12 18:52:54,974 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:54,974 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:54,986 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 18:52:55,174 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 18:52:55,175 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:52:55,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:55,175 INFO L85 PathProgramCache]: Analyzing trace with hash 2075595968, now seen corresponding path program 1 times [2024-09-12 18:52:55,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:55,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155126080] [2024-09-12 18:52:55,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:55,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:55,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [246970014] [2024-09-12 18:52:55,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:55,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:55,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:55,193 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 18:52:55,194 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 18:52:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:55,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:52:55,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:55,482 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-09-12 18:52:55,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:59,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:59,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155126080] [2024-09-12 18:52:59,958 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:59,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246970014] [2024-09-12 18:52:59,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246970014] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:59,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:59,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:52:59,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304585719] [2024-09-12 18:52:59,958 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:59,958 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:52:59,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:59,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:52:59,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2024-09-12 18:52:59,959 INFO L87 Difference]: Start difference. First operand 320 states and 403 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:53:00,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:00,723 INFO L93 Difference]: Finished difference Result 338 states and 414 transitions. [2024-09-12 18:53:00,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:53:00,724 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2024-09-12 18:53:00,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:00,725 INFO L225 Difference]: With dead ends: 338 [2024-09-12 18:53:00,726 INFO L226 Difference]: Without dead ends: 335 [2024-09-12 18:53:00,726 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2024-09-12 18:53:00,727 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 174 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:00,727 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 351 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:53:00,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-09-12 18:53:00,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 320. [2024-09-12 18:53:00,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 227 states have (on average 1.52863436123348) internal successors, (347), 288 states have internal predecessors, (347), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:53:00,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 397 transitions. [2024-09-12 18:53:00,821 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 397 transitions. Word has length 88 [2024-09-12 18:53:00,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:00,821 INFO L474 AbstractCegarLoop]: Abstraction has 320 states and 397 transitions. [2024-09-12 18:53:00,821 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:53:00,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:00,822 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 397 transitions. [2024-09-12 18:53:00,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-09-12 18:53:00,822 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:00,822 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:53:00,835 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 18:53:01,023 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 18:53:01,023 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:01,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:01,024 INFO L85 PathProgramCache]: Analyzing trace with hash -81034287, now seen corresponding path program 1 times [2024-09-12 18:53:01,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:01,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079436509] [2024-09-12 18:53:01,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:01,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:01,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1335769924] [2024-09-12 18:53:01,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:01,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:01,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:01,047 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 18:53:01,048 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 18:53:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:01,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:53:01,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:01,475 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:53:01,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:01,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:01,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079436509] [2024-09-12 18:53:01,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:01,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335769924] [2024-09-12 18:53:01,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335769924] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:01,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:01,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:53:01,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577764937] [2024-09-12 18:53:01,707 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:01,707 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:53:01,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:01,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:53:01,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:53:01,708 INFO L87 Difference]: Start difference. First operand 320 states and 397 transitions. Second operand has 8 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-09-12 18:53:02,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:02,200 INFO L93 Difference]: Finished difference Result 328 states and 400 transitions. [2024-09-12 18:53:02,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:53:02,200 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 89 [2024-09-12 18:53:02,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:02,202 INFO L225 Difference]: With dead ends: 328 [2024-09-12 18:53:02,202 INFO L226 Difference]: Without dead ends: 325 [2024-09-12 18:53:02,202 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:53:02,203 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 247 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:02,203 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 271 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:53:02,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-09-12 18:53:02,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 320. [2024-09-12 18:53:02,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 227 states have (on average 1.502202643171806) internal successors, (341), 288 states have internal predecessors, (341), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:53:02,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 391 transitions. [2024-09-12 18:53:02,265 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 391 transitions. Word has length 89 [2024-09-12 18:53:02,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:02,265 INFO L474 AbstractCegarLoop]: Abstraction has 320 states and 391 transitions. [2024-09-12 18:53:02,266 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-09-12 18:53:02,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:02,266 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 391 transitions. [2024-09-12 18:53:02,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 18:53:02,266 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:02,267 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 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 18:53:02,279 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 18:53:02,470 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 18:53:02,471 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:02,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:02,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1587574553, now seen corresponding path program 1 times [2024-09-12 18:53:02,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:02,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988410689] [2024-09-12 18:53:02,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:02,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:02,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [914754277] [2024-09-12 18:53:02,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:02,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:02,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:02,483 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 18:53:02,492 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 18:53:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:02,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:53:02,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:02,831 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 18:53:02,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:53:02,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:02,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988410689] [2024-09-12 18:53:02,831 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:02,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914754277] [2024-09-12 18:53:02,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914754277] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:53:02,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:53:02,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:53:02,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043167225] [2024-09-12 18:53:02,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:53:02,832 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:53:02,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:02,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:53:02,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:53:02,833 INFO L87 Difference]: Start difference. First operand 320 states and 391 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:53:03,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:03,610 INFO L93 Difference]: Finished difference Result 329 states and 397 transitions. [2024-09-12 18:53:03,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:53:03,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 99 [2024-09-12 18:53:03,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:03,612 INFO L225 Difference]: With dead ends: 329 [2024-09-12 18:53:03,612 INFO L226 Difference]: Without dead ends: 327 [2024-09-12 18:53:03,612 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:53:03,613 INFO L434 NwaCegarLoop]: 117 mSDtfsCounter, 11 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:03,613 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 434 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:53:03,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-09-12 18:53:03,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 324. [2024-09-12 18:53:03,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 230 states have (on average 1.4956521739130435) internal successors, (344), 291 states have internal predecessors, (344), 26 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:53:03,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 394 transitions. [2024-09-12 18:53:03,674 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 394 transitions. Word has length 99 [2024-09-12 18:53:03,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:03,674 INFO L474 AbstractCegarLoop]: Abstraction has 324 states and 394 transitions. [2024-09-12 18:53:03,674 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:53:03,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:03,674 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 394 transitions. [2024-09-12 18:53:03,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-09-12 18:53:03,675 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:03,675 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:53:03,687 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 18:53:03,879 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 18:53:03,879 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:03,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:03,880 INFO L85 PathProgramCache]: Analyzing trace with hash -741366165, now seen corresponding path program 1 times [2024-09-12 18:53:03,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:03,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478647967] [2024-09-12 18:53:03,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:03,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:03,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:53:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:03,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:53:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:03,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:53:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:03,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:53:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:03,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:53:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:03,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:53:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:03,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:53:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:03,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:53:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:03,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:53:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:03,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:53:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:03,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:53:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:03,943 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:53:03,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:03,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478647967] [2024-09-12 18:53:03,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478647967] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:53:03,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:53:03,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:53:03,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70935309] [2024-09-12 18:53:03,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:53:03,944 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:53:03,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:03,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:53:03,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:53:03,945 INFO L87 Difference]: Start difference. First operand 324 states and 394 transitions. Second operand has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-09-12 18:53:04,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:04,106 INFO L93 Difference]: Finished difference Result 324 states and 394 transitions. [2024-09-12 18:53:04,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:53:04,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2024-09-12 18:53:04,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:04,108 INFO L225 Difference]: With dead ends: 324 [2024-09-12 18:53:04,108 INFO L226 Difference]: Without dead ends: 323 [2024-09-12 18:53:04,108 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 18:53:04,109 INFO L434 NwaCegarLoop]: 164 mSDtfsCounter, 1 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:04,109 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 297 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:53:04,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-09-12 18:53:04,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-09-12 18:53:04,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 230 states have (on average 1.4782608695652173) internal successors, (340), 290 states have internal predecessors, (340), 26 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:53:04,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 390 transitions. [2024-09-12 18:53:04,163 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 390 transitions. Word has length 102 [2024-09-12 18:53:04,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:04,163 INFO L474 AbstractCegarLoop]: Abstraction has 323 states and 390 transitions. [2024-09-12 18:53:04,164 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-09-12 18:53:04,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:04,164 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 390 transitions. [2024-09-12 18:53:04,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 18:53:04,164 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:04,164 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:53:04,165 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-09-12 18:53:04,165 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:04,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:04,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1507514468, now seen corresponding path program 1 times [2024-09-12 18:53:04,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:04,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19047474] [2024-09-12 18:53:04,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:04,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:04,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:53:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:04,248 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:53:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:04,250 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:53:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:04,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:53:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:04,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:53:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:04,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:53:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:04,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:53:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:04,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:53:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:04,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:53:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:04,261 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:53:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:04,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:53:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:53:04,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:04,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19047474] [2024-09-12 18:53:04,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19047474] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:53:04,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:53:04,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:53:04,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178260695] [2024-09-12 18:53:04,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:53:04,265 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:53:04,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:04,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:53:04,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:53:04,266 INFO L87 Difference]: Start difference. First operand 323 states and 390 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-09-12 18:53:05,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:05,110 INFO L93 Difference]: Finished difference Result 327 states and 391 transitions. [2024-09-12 18:53:05,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:53:05,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 103 [2024-09-12 18:53:05,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:05,112 INFO L225 Difference]: With dead ends: 327 [2024-09-12 18:53:05,112 INFO L226 Difference]: Without dead ends: 326 [2024-09-12 18:53:05,113 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:53:05,113 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 475 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:05,113 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 247 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:53:05,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-09-12 18:53:05,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 323. [2024-09-12 18:53:05,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 230 states have (on average 1.4739130434782608) internal successors, (339), 290 states have internal predecessors, (339), 26 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:53:05,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 389 transitions. [2024-09-12 18:53:05,181 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 389 transitions. Word has length 103 [2024-09-12 18:53:05,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:05,181 INFO L474 AbstractCegarLoop]: Abstraction has 323 states and 389 transitions. [2024-09-12 18:53:05,181 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-09-12 18:53:05,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:05,181 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 389 transitions. [2024-09-12 18:53:05,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-09-12 18:53:05,182 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:05,182 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 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 18:53:05,182 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-09-12 18:53:05,182 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:05,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:05,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1318958788, now seen corresponding path program 1 times [2024-09-12 18:53:05,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:05,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685918228] [2024-09-12 18:53:05,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:05,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:05,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:53:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:05,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:53:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:05,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:53:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:05,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:53:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:05,253 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:53:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:05,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:53:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:05,256 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:53:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:05,257 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:53:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:05,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:53:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:05,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:53:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:05,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:53:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:05,264 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:53:05,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:05,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685918228] [2024-09-12 18:53:05,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685918228] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:53:05,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:53:05,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:53:05,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575757766] [2024-09-12 18:53:05,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:53:05,265 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:53:05,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:05,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:53:05,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:53:05,265 INFO L87 Difference]: Start difference. First operand 323 states and 389 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:53:06,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:06,091 INFO L93 Difference]: Finished difference Result 338 states and 400 transitions. [2024-09-12 18:53:06,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:53:06,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-09-12 18:53:06,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:06,093 INFO L225 Difference]: With dead ends: 338 [2024-09-12 18:53:06,093 INFO L226 Difference]: Without dead ends: 337 [2024-09-12 18:53:06,094 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 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 18:53:06,097 INFO L434 NwaCegarLoop]: 159 mSDtfsCounter, 13 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:06,098 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 539 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:53:06,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-09-12 18:53:06,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 328. [2024-09-12 18:53:06,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 235 states have (on average 1.4638297872340424) internal successors, (344), 295 states have internal predecessors, (344), 26 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:53:06,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 394 transitions. [2024-09-12 18:53:06,163 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 394 transitions. Word has length 105 [2024-09-12 18:53:06,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:06,164 INFO L474 AbstractCegarLoop]: Abstraction has 328 states and 394 transitions. [2024-09-12 18:53:06,164 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:53:06,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:06,164 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 394 transitions. [2024-09-12 18:53:06,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-09-12 18:53:06,165 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:06,165 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 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 18:53:06,165 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-09-12 18:53:06,165 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:06,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:06,165 INFO L85 PathProgramCache]: Analyzing trace with hash 2061950715, now seen corresponding path program 1 times [2024-09-12 18:53:06,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:06,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219779080] [2024-09-12 18:53:06,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:06,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:06,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1931477049] [2024-09-12 18:53:06,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:06,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:06,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:06,181 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 18:53:06,182 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 18:53:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:06,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:53:06,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:06,356 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:53:06,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:53:06,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:06,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219779080] [2024-09-12 18:53:06,357 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:06,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931477049] [2024-09-12 18:53:06,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931477049] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:53:06,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:53:06,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:53:06,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866186045] [2024-09-12 18:53:06,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:53:06,358 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:53:06,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:06,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:53:06,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:53:06,359 INFO L87 Difference]: Start difference. First operand 328 states and 394 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:53:06,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:06,828 INFO L93 Difference]: Finished difference Result 338 states and 398 transitions. [2024-09-12 18:53:06,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:53:06,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-09-12 18:53:06,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:06,830 INFO L225 Difference]: With dead ends: 338 [2024-09-12 18:53:06,830 INFO L226 Difference]: Without dead ends: 337 [2024-09-12 18:53:06,830 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 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 18:53:06,831 INFO L434 NwaCegarLoop]: 140 mSDtfsCounter, 15 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:06,831 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 328 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:53:06,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-09-12 18:53:06,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 330. [2024-09-12 18:53:06,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 237 states have (on average 1.459915611814346) internal successors, (346), 297 states have internal predecessors, (346), 26 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:53:06,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 396 transitions. [2024-09-12 18:53:06,908 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 396 transitions. Word has length 106 [2024-09-12 18:53:06,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:06,909 INFO L474 AbstractCegarLoop]: Abstraction has 330 states and 396 transitions. [2024-09-12 18:53:06,909 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:53:06,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:06,910 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 396 transitions. [2024-09-12 18:53:06,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-12 18:53:06,910 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:06,910 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:53:06,923 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 18:53:07,111 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 18:53:07,111 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:07,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:07,111 INFO L85 PathProgramCache]: Analyzing trace with hash 975132800, now seen corresponding path program 1 times [2024-09-12 18:53:07,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:07,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876779196] [2024-09-12 18:53:07,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:07,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:07,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [289991634] [2024-09-12 18:53:07,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:07,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:07,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:07,128 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 18:53:07,133 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 18:53:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:07,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:53:07,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:07,321 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-09-12 18:53:07,321 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:07,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:07,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876779196] [2024-09-12 18:53:07,370 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:07,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289991634] [2024-09-12 18:53:07,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289991634] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:07,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:07,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:53:07,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094773339] [2024-09-12 18:53:07,371 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:07,371 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:53:07,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:07,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:53:07,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:53:07,372 INFO L87 Difference]: Start difference. First operand 330 states and 396 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:53:07,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:07,845 INFO L93 Difference]: Finished difference Result 333 states and 396 transitions. [2024-09-12 18:53:07,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:53:07,846 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 107 [2024-09-12 18:53:07,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:07,847 INFO L225 Difference]: With dead ends: 333 [2024-09-12 18:53:07,847 INFO L226 Difference]: Without dead ends: 331 [2024-09-12 18:53:07,847 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:53:07,848 INFO L434 NwaCegarLoop]: 109 mSDtfsCounter, 199 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:07,848 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 513 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:53:07,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-09-12 18:53:07,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 330. [2024-09-12 18:53:07,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 237 states have (on average 1.4514767932489452) internal successors, (344), 297 states have internal predecessors, (344), 26 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:53:07,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 394 transitions. [2024-09-12 18:53:07,921 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 394 transitions. Word has length 107 [2024-09-12 18:53:07,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:07,921 INFO L474 AbstractCegarLoop]: Abstraction has 330 states and 394 transitions. [2024-09-12 18:53:07,921 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:53:07,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:07,921 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 394 transitions. [2024-09-12 18:53:07,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 18:53:07,922 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:07,922 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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 18:53:07,938 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-09-12 18:53:08,122 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 18:53:08,123 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:08,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:08,123 INFO L85 PathProgramCache]: Analyzing trace with hash 164345814, now seen corresponding path program 1 times [2024-09-12 18:53:08,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:08,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91834430] [2024-09-12 18:53:08,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:08,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:08,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1420593112] [2024-09-12 18:53:08,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:08,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:08,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:08,135 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 18:53:08,136 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 18:53:08,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:08,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:53:08,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:08,384 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:53:08,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:08,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:08,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91834430] [2024-09-12 18:53:08,649 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:08,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420593112] [2024-09-12 18:53:08,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420593112] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:08,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:08,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:53:08,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855393393] [2024-09-12 18:53:08,649 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:08,650 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:53:08,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:08,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:53:08,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:53:08,650 INFO L87 Difference]: Start difference. First operand 330 states and 394 transitions. Second operand has 9 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:53:09,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:09,167 INFO L93 Difference]: Finished difference Result 380 states and 451 transitions. [2024-09-12 18:53:09,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:53:09,167 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 108 [2024-09-12 18:53:09,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:09,169 INFO L225 Difference]: With dead ends: 380 [2024-09-12 18:53:09,169 INFO L226 Difference]: Without dead ends: 378 [2024-09-12 18:53:09,170 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:53:09,171 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 328 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:09,171 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 407 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:53:09,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-09-12 18:53:09,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 376. [2024-09-12 18:53:09,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 279 states have (on average 1.3978494623655915) internal successors, (390), 339 states have internal predecessors, (390), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:53:09,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 448 transitions. [2024-09-12 18:53:09,269 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 448 transitions. Word has length 108 [2024-09-12 18:53:09,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:09,269 INFO L474 AbstractCegarLoop]: Abstraction has 376 states and 448 transitions. [2024-09-12 18:53:09,270 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:53:09,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:09,270 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 448 transitions. [2024-09-12 18:53:09,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-09-12 18:53:09,270 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:09,270 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 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 18:53:09,282 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 18:53:09,474 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 18:53:09,475 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:09,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:09,475 INFO L85 PathProgramCache]: Analyzing trace with hash 951666944, now seen corresponding path program 1 times [2024-09-12 18:53:09,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:09,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434855718] [2024-09-12 18:53:09,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:09,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:09,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:53:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:09,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:53:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:09,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:53:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:09,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:53:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:09,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:53:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:09,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:53:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:09,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:53:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:09,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:53:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:09,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:53:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:09,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:53:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:09,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:53:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:09,578 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:53:09,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:09,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434855718] [2024-09-12 18:53:09,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434855718] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:53:09,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:53:09,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:53:09,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308641356] [2024-09-12 18:53:09,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:53:09,580 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:53:09,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:09,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:53:09,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:53:09,580 INFO L87 Difference]: Start difference. First operand 376 states and 448 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:53:10,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:10,445 INFO L93 Difference]: Finished difference Result 390 states and 458 transitions. [2024-09-12 18:53:10,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:53:10,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-09-12 18:53:10,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:10,447 INFO L225 Difference]: With dead ends: 390 [2024-09-12 18:53:10,447 INFO L226 Difference]: Without dead ends: 389 [2024-09-12 18:53:10,447 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 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 18:53:10,447 INFO L434 NwaCegarLoop]: 159 mSDtfsCounter, 13 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:10,447 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 539 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:53:10,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-09-12 18:53:10,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 381. [2024-09-12 18:53:10,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 284 states have (on average 1.397887323943662) internal successors, (397), 344 states have internal predecessors, (397), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:53:10,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 455 transitions. [2024-09-12 18:53:10,545 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 455 transitions. Word has length 109 [2024-09-12 18:53:10,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:10,545 INFO L474 AbstractCegarLoop]: Abstraction has 381 states and 455 transitions. [2024-09-12 18:53:10,546 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:53:10,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:10,546 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 455 transitions. [2024-09-12 18:53:10,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-09-12 18:53:10,547 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:10,547 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:53:10,547 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-09-12 18:53:10,547 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:10,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:10,547 INFO L85 PathProgramCache]: Analyzing trace with hash 799753026, now seen corresponding path program 1 times [2024-09-12 18:53:10,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:10,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971710185] [2024-09-12 18:53:10,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:10,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:10,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:53:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:10,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:53:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:10,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:53:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:10,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:53:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:10,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:53:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:10,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:53:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:10,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:53:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:10,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:53:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:10,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:53:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:10,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:53:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:10,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:53:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:10,656 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:53:10,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:10,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971710185] [2024-09-12 18:53:10,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971710185] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:53:10,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:53:10,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:53:10,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870270697] [2024-09-12 18:53:10,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:53:10,657 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:53:10,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:10,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:53:10,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:53:10,657 INFO L87 Difference]: Start difference. First operand 381 states and 455 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-09-12 18:53:11,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:11,386 INFO L93 Difference]: Finished difference Result 414 states and 455 transitions. [2024-09-12 18:53:11,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:53:11,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2024-09-12 18:53:11,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:11,389 INFO L225 Difference]: With dead ends: 414 [2024-09-12 18:53:11,389 INFO L226 Difference]: Without dead ends: 413 [2024-09-12 18:53:11,389 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:53:11,389 INFO L434 NwaCegarLoop]: 200 mSDtfsCounter, 135 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:11,389 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 581 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:53:11,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-09-12 18:53:11,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 381. [2024-09-12 18:53:11,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 284 states have (on average 1.3873239436619718) internal successors, (394), 344 states have internal predecessors, (394), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:53:11,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 452 transitions. [2024-09-12 18:53:11,492 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 452 transitions. Word has length 109 [2024-09-12 18:53:11,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:11,493 INFO L474 AbstractCegarLoop]: Abstraction has 381 states and 452 transitions. [2024-09-12 18:53:11,493 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-09-12 18:53:11,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:11,493 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 452 transitions. [2024-09-12 18:53:11,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-09-12 18:53:11,493 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:11,494 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 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 18:53:11,494 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-09-12 18:53:11,494 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:11,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:11,494 INFO L85 PathProgramCache]: Analyzing trace with hash -563095617, now seen corresponding path program 1 times [2024-09-12 18:53:11,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:11,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835284574] [2024-09-12 18:53:11,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:11,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:11,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [375958326] [2024-09-12 18:53:11,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:11,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:11,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:11,514 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 18:53:11,518 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 18:53:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:11,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:53:11,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:11,699 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:53:11,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:53:11,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:11,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835284574] [2024-09-12 18:53:11,700 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:11,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375958326] [2024-09-12 18:53:11,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375958326] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:53:11,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:53:11,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:53:11,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847219691] [2024-09-12 18:53:11,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:53:11,700 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:53:11,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:11,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:53:11,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:53:11,701 INFO L87 Difference]: Start difference. First operand 381 states and 452 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 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 18:53:12,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:12,028 INFO L93 Difference]: Finished difference Result 388 states and 455 transitions. [2024-09-12 18:53:12,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:53:12,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 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 110 [2024-09-12 18:53:12,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:12,030 INFO L225 Difference]: With dead ends: 388 [2024-09-12 18:53:12,030 INFO L226 Difference]: Without dead ends: 387 [2024-09-12 18:53:12,030 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 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 18:53:12,031 INFO L434 NwaCegarLoop]: 149 mSDtfsCounter, 60 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 455 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 18:53:12,031 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 455 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:53:12,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-09-12 18:53:12,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 383. [2024-09-12 18:53:12,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 286 states have (on average 1.3846153846153846) internal successors, (396), 346 states have internal predecessors, (396), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:53:12,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 454 transitions. [2024-09-12 18:53:12,154 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 454 transitions. Word has length 110 [2024-09-12 18:53:12,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:12,154 INFO L474 AbstractCegarLoop]: Abstraction has 383 states and 454 transitions. [2024-09-12 18:53:12,154 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 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 18:53:12,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:12,155 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 454 transitions. [2024-09-12 18:53:12,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-09-12 18:53:12,155 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:12,155 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 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 18:53:12,167 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-09-12 18:53:12,356 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 18:53:12,356 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:12,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:12,356 INFO L85 PathProgramCache]: Analyzing trace with hash -977459880, now seen corresponding path program 1 times [2024-09-12 18:53:12,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:12,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327176483] [2024-09-12 18:53:12,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:12,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:12,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1497518654] [2024-09-12 18:53:12,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:12,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:12,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:12,371 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 18:53:12,373 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 18:53:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:12,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 18:53:12,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:12,643 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-09-12 18:53:12,643 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:12,811 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-09-12 18:53:12,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:12,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327176483] [2024-09-12 18:53:12,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:12,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497518654] [2024-09-12 18:53:12,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497518654] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:53:12,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:53:12,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2024-09-12 18:53:12,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099707163] [2024-09-12 18:53:12,812 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:12,812 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:53:12,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:12,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:53:12,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:53:12,813 INFO L87 Difference]: Start difference. First operand 383 states and 454 transitions. Second operand has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 14 states have internal predecessors, (119), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-09-12 18:53:14,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:14,281 INFO L93 Difference]: Finished difference Result 388 states and 455 transitions. [2024-09-12 18:53:14,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:53:14,282 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 14 states have internal predecessors, (119), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 110 [2024-09-12 18:53:14,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:14,283 INFO L225 Difference]: With dead ends: 388 [2024-09-12 18:53:14,283 INFO L226 Difference]: Without dead ends: 387 [2024-09-12 18:53:14,284 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 206 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:53:14,284 INFO L434 NwaCegarLoop]: 107 mSDtfsCounter, 732 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:14,284 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 567 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 18:53:14,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-09-12 18:53:14,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 383. [2024-09-12 18:53:14,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 286 states have (on average 1.3741258741258742) internal successors, (393), 346 states have internal predecessors, (393), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:53:14,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 451 transitions. [2024-09-12 18:53:14,406 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 451 transitions. Word has length 110 [2024-09-12 18:53:14,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:14,406 INFO L474 AbstractCegarLoop]: Abstraction has 383 states and 451 transitions. [2024-09-12 18:53:14,406 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.153846153846153) internal successors, (119), 14 states have internal predecessors, (119), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-09-12 18:53:14,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:14,407 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 451 transitions. [2024-09-12 18:53:14,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-09-12 18:53:14,408 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:14,409 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:53:14,420 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-09-12 18:53:14,612 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 18:53:14,612 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:14,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:14,613 INFO L85 PathProgramCache]: Analyzing trace with hash 960799874, now seen corresponding path program 1 times [2024-09-12 18:53:14,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:14,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900019736] [2024-09-12 18:53:14,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:14,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:14,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:53:14,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:14,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:53:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:14,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:53:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:14,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:53:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:14,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:53:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:14,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:53:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:14,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:53:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:14,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:53:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:14,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:53:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:14,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:53:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:14,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:53:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:14,717 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-09-12 18:53:14,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:14,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900019736] [2024-09-12 18:53:14,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900019736] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:14,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813121446] [2024-09-12 18:53:14,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:14,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:14,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:14,720 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 18:53:14,721 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 18:53:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:14,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:53:14,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:14,842 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:53:14,842 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:15,028 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:53:15,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813121446] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:53:15,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:53:15,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 15 [2024-09-12 18:53:15,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415190054] [2024-09-12 18:53:15,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:15,029 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:53:15,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:15,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:53:15,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:53:15,030 INFO L87 Difference]: Start difference. First operand 383 states and 451 transitions. Second operand has 15 states, 15 states have (on average 12.133333333333333) internal successors, (182), 14 states have internal predecessors, (182), 8 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 8 states have call predecessors, (25), 8 states have call successors, (25) [2024-09-12 18:53:17,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:17,162 INFO L93 Difference]: Finished difference Result 1253 states and 1505 transitions. [2024-09-12 18:53:17,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-09-12 18:53:17,163 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 12.133333333333333) internal successors, (182), 14 states have internal predecessors, (182), 8 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 8 states have call predecessors, (25), 8 states have call successors, (25) Word has length 113 [2024-09-12 18:53:17,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:17,166 INFO L225 Difference]: With dead ends: 1253 [2024-09-12 18:53:17,166 INFO L226 Difference]: Without dead ends: 1221 [2024-09-12 18:53:17,167 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=416, Invalid=1306, Unknown=0, NotChecked=0, Total=1722 [2024-09-12 18:53:17,167 INFO L434 NwaCegarLoop]: 176 mSDtfsCounter, 2534 mSDsluCounter, 1321 mSDsCounter, 0 mSdLazyCounter, 1766 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2534 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 2090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:17,167 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2534 Valid, 1497 Invalid, 2090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1766 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-09-12 18:53:17,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2024-09-12 18:53:17,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 387. [2024-09-12 18:53:17,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 290 states have (on average 1.3758620689655172) internal successors, (399), 350 states have internal predecessors, (399), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:53:17,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 457 transitions. [2024-09-12 18:53:17,288 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 457 transitions. Word has length 113 [2024-09-12 18:53:17,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:17,289 INFO L474 AbstractCegarLoop]: Abstraction has 387 states and 457 transitions. [2024-09-12 18:53:17,289 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.133333333333333) internal successors, (182), 14 states have internal predecessors, (182), 8 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 8 states have call predecessors, (25), 8 states have call successors, (25) [2024-09-12 18:53:17,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:17,289 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 457 transitions. [2024-09-12 18:53:17,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-09-12 18:53:17,289 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:17,290 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 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, 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 18:53:17,301 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 18:53:17,490 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 18:53:17,491 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:17,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:17,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1376796800, now seen corresponding path program 1 times [2024-09-12 18:53:17,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:17,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909252400] [2024-09-12 18:53:17,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:17,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:17,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1105136318] [2024-09-12 18:53:17,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:17,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:17,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:17,502 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 18:53:17,521 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 18:53:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:17,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:53:17,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:17,676 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:53:17,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:17,826 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:53:17,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:17,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909252400] [2024-09-12 18:53:17,826 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:17,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105136318] [2024-09-12 18:53:17,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105136318] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:53:17,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:53:17,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2024-09-12 18:53:17,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898593487] [2024-09-12 18:53:17,827 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:17,827 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:53:17,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:17,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:53:17,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:53:17,828 INFO L87 Difference]: Start difference. First operand 387 states and 457 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:53:18,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:18,529 INFO L93 Difference]: Finished difference Result 495 states and 548 transitions. [2024-09-12 18:53:18,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:53:18,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 114 [2024-09-12 18:53:18,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:18,532 INFO L225 Difference]: With dead ends: 495 [2024-09-12 18:53:18,532 INFO L226 Difference]: Without dead ends: 493 [2024-09-12 18:53:18,532 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 217 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:53:18,532 INFO L434 NwaCegarLoop]: 202 mSDtfsCounter, 154 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:18,532 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 1201 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:53:18,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-09-12 18:53:18,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 391. [2024-09-12 18:53:18,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 293 states have (on average 1.372013651877133) internal successors, (402), 353 states have internal predecessors, (402), 30 states have call successors, (30), 9 states have call predecessors, (30), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 18:53:18,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 460 transitions. [2024-09-12 18:53:18,668 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 460 transitions. Word has length 114 [2024-09-12 18:53:18,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:18,669 INFO L474 AbstractCegarLoop]: Abstraction has 391 states and 460 transitions. [2024-09-12 18:53:18,669 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-09-12 18:53:18,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:18,669 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 460 transitions. [2024-09-12 18:53:18,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-09-12 18:53:18,669 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:18,670 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:53:18,684 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 18:53:18,870 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 18:53:18,870 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:18,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:18,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1525520136, now seen corresponding path program 1 times [2024-09-12 18:53:18,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:18,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192766945] [2024-09-12 18:53:18,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:18,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:18,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:53:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:18,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:53:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:18,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:53:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:19,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:53:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:19,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:53:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:19,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:53:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:19,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:53:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:19,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:53:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:19,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:53:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:19,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:53:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:19,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:53:19,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:19,011 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-09-12 18:53:19,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:19,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192766945] [2024-09-12 18:53:19,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192766945] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:19,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397499150] [2024-09-12 18:53:19,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:19,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:19,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:19,013 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 18:53:19,017 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 18:53:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:19,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:53:19,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:19,184 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:53:19,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:53:19,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397499150] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:53:19,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:19,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16 [2024-09-12 18:53:19,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545650558] [2024-09-12 18:53:19,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:53:19,185 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:53:19,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:19,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:53:19,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:53:19,186 INFO L87 Difference]: Start difference. First operand 391 states and 460 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:53:21,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:21,257 INFO L93 Difference]: Finished difference Result 762 states and 873 transitions. [2024-09-12 18:53:21,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:53:21,257 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 116 [2024-09-12 18:53:21,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:21,260 INFO L225 Difference]: With dead ends: 762 [2024-09-12 18:53:21,260 INFO L226 Difference]: Without dead ends: 761 [2024-09-12 18:53:21,260 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2024-09-12 18:53:21,260 INFO L434 NwaCegarLoop]: 190 mSDtfsCounter, 772 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:21,261 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 790 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-09-12 18:53:21,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-09-12 18:53:21,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 549. [2024-09-12 18:53:21,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 439 states have (on average 1.5216400911161732) internal successors, (668), 499 states have internal predecessors, (668), 42 states have call successors, (42), 9 states have call predecessors, (42), 8 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 18:53:21,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 750 transitions. [2024-09-12 18:53:21,460 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 750 transitions. Word has length 116 [2024-09-12 18:53:21,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:21,461 INFO L474 AbstractCegarLoop]: Abstraction has 549 states and 750 transitions. [2024-09-12 18:53:21,461 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:53:21,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:21,461 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 750 transitions. [2024-09-12 18:53:21,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 18:53:21,461 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:21,461 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 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 18:53:21,473 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-09-12 18:53:21,665 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 18:53:21,666 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:21,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:21,666 INFO L85 PathProgramCache]: Analyzing trace with hash 46484050, now seen corresponding path program 1 times [2024-09-12 18:53:21,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:21,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714709047] [2024-09-12 18:53:21,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:21,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:21,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1709801286] [2024-09-12 18:53:21,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:21,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:21,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:21,678 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 18:53:21,679 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 18:53:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:21,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:53:21,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:21,815 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:53:21,815 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:21,928 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:53:21,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:21,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714709047] [2024-09-12 18:53:21,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:21,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709801286] [2024-09-12 18:53:21,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709801286] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:53:21,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:53:21,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 18:53:21,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843083835] [2024-09-12 18:53:21,930 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:21,930 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:53:21,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:21,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:53:21,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:53:21,931 INFO L87 Difference]: Start difference. First operand 549 states and 750 transitions. Second operand has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-09-12 18:53:23,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:23,318 INFO L93 Difference]: Finished difference Result 832 states and 1129 transitions. [2024-09-12 18:53:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:53:23,319 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 117 [2024-09-12 18:53:23,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:23,321 INFO L225 Difference]: With dead ends: 832 [2024-09-12 18:53:23,321 INFO L226 Difference]: Without dead ends: 831 [2024-09-12 18:53:23,322 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:53:23,322 INFO L434 NwaCegarLoop]: 171 mSDtfsCounter, 702 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:23,322 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 777 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:53:23,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2024-09-12 18:53:23,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 655. [2024-09-12 18:53:23,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 537 states have (on average 1.5642458100558658) internal successors, (840), 597 states have internal predecessors, (840), 50 states have call successors, (50), 9 states have call predecessors, (50), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 18:53:23,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 938 transitions. [2024-09-12 18:53:23,547 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 938 transitions. Word has length 117 [2024-09-12 18:53:23,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:23,548 INFO L474 AbstractCegarLoop]: Abstraction has 655 states and 938 transitions. [2024-09-12 18:53:23,548 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-09-12 18:53:23,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:23,548 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 938 transitions. [2024-09-12 18:53:23,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-09-12 18:53:23,549 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:23,549 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:53:23,560 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-09-12 18:53:23,749 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 18:53:23,750 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:23,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:23,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1362318491, now seen corresponding path program 1 times [2024-09-12 18:53:23,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:23,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165294840] [2024-09-12 18:53:23,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:23,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:23,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1282218442] [2024-09-12 18:53:23,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:23,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:23,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:23,762 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 18:53:23,763 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 18:53:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:23,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:53:23,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:24,272 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-09-12 18:53:24,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:24,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:24,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165294840] [2024-09-12 18:53:24,371 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:24,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282218442] [2024-09-12 18:53:24,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282218442] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:24,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:24,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:53:24,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150338508] [2024-09-12 18:53:24,371 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:24,371 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:53:24,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:24,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:53:24,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:53:24,372 INFO L87 Difference]: Start difference. First operand 655 states and 938 transitions. Second operand has 10 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:53:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:25,401 INFO L93 Difference]: Finished difference Result 782 states and 1126 transitions. [2024-09-12 18:53:25,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:53:25,401 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 123 [2024-09-12 18:53:25,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:25,404 INFO L225 Difference]: With dead ends: 782 [2024-09-12 18:53:25,404 INFO L226 Difference]: Without dead ends: 781 [2024-09-12 18:53:25,404 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:53:25,405 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 631 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:25,405 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 407 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:53:25,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2024-09-12 18:53:25,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 747. [2024-09-12 18:53:25,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 621 states have (on average 1.6006441223832528) internal successors, (994), 681 states have internal predecessors, (994), 58 states have call successors, (58), 9 states have call predecessors, (58), 8 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-09-12 18:53:25,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1108 transitions. [2024-09-12 18:53:25,669 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1108 transitions. Word has length 123 [2024-09-12 18:53:25,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:25,669 INFO L474 AbstractCegarLoop]: Abstraction has 747 states and 1108 transitions. [2024-09-12 18:53:25,669 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:53:25,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:25,670 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1108 transitions. [2024-09-12 18:53:25,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-09-12 18:53:25,670 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:25,670 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:53:25,682 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 18:53:25,870 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-09-12 18:53:25,871 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:25,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:25,871 INFO L85 PathProgramCache]: Analyzing trace with hash -717799644, now seen corresponding path program 1 times [2024-09-12 18:53:25,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:25,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530329621] [2024-09-12 18:53:25,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:25,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:25,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1744383245] [2024-09-12 18:53:25,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:25,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:25,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:25,886 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 18:53:25,887 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 18:53:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:25,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 18:53:25,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:26,410 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-09-12 18:53:26,410 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:27,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:27,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530329621] [2024-09-12 18:53:27,249 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:27,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744383245] [2024-09-12 18:53:27,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744383245] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:27,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:27,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:53:27,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687111377] [2024-09-12 18:53:27,250 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:27,250 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:53:27,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:27,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:53:27,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:53:27,251 INFO L87 Difference]: Start difference. First operand 747 states and 1108 transitions. Second operand has 12 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:53:28,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:28,461 INFO L93 Difference]: Finished difference Result 784 states and 1124 transitions. [2024-09-12 18:53:28,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:53:28,462 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 124 [2024-09-12 18:53:28,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:28,464 INFO L225 Difference]: With dead ends: 784 [2024-09-12 18:53:28,464 INFO L226 Difference]: Without dead ends: 781 [2024-09-12 18:53:28,465 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:53:28,465 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 486 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:28,465 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 543 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:53:28,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2024-09-12 18:53:28,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 747. [2024-09-12 18:53:28,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 621 states have (on average 1.5909822866344605) internal successors, (988), 681 states have internal predecessors, (988), 58 states have call successors, (58), 9 states have call predecessors, (58), 8 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-09-12 18:53:28,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1102 transitions. [2024-09-12 18:53:28,726 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1102 transitions. Word has length 124 [2024-09-12 18:53:28,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:28,726 INFO L474 AbstractCegarLoop]: Abstraction has 747 states and 1102 transitions. [2024-09-12 18:53:28,726 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:53:28,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:28,727 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1102 transitions. [2024-09-12 18:53:28,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-09-12 18:53:28,727 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:28,727 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:53:28,739 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-09-12 18:53:28,931 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:28,932 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:28,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:28,932 INFO L85 PathProgramCache]: Analyzing trace with hash -776952387, now seen corresponding path program 1 times [2024-09-12 18:53:28,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:28,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761404980] [2024-09-12 18:53:28,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:28,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:28,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [869404694] [2024-09-12 18:53:28,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:28,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:28,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:28,949 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 18:53:28,953 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 18:53:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:29,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:53:29,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:29,277 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 3 proven. 32 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-09-12 18:53:29,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:29,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:29,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761404980] [2024-09-12 18:53:29,319 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:29,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869404694] [2024-09-12 18:53:29,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869404694] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:29,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:29,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:53:29,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456393792] [2024-09-12 18:53:29,320 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:29,321 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:53:29,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:29,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:53:29,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:53:29,322 INFO L87 Difference]: Start difference. First operand 747 states and 1102 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 18:53:30,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:30,072 INFO L93 Difference]: Finished difference Result 891 states and 1310 transitions. [2024-09-12 18:53:30,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:53:30,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 125 [2024-09-12 18:53:30,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:30,076 INFO L225 Difference]: With dead ends: 891 [2024-09-12 18:53:30,076 INFO L226 Difference]: Without dead ends: 889 [2024-09-12 18:53:30,077 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:53:30,077 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 485 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:30,077 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 452 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:53:30,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2024-09-12 18:53:30,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 850. [2024-09-12 18:53:30,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 715 states have (on average 1.620979020979021) internal successors, (1159), 775 states have internal predecessors, (1159), 67 states have call successors, (67), 9 states have call predecessors, (67), 8 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-09-12 18:53:30,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1291 transitions. [2024-09-12 18:53:30,419 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1291 transitions. Word has length 125 [2024-09-12 18:53:30,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:30,419 INFO L474 AbstractCegarLoop]: Abstraction has 850 states and 1291 transitions. [2024-09-12 18:53:30,419 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 18:53:30,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:30,420 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1291 transitions. [2024-09-12 18:53:30,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-09-12 18:53:30,420 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:30,420 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:53:30,432 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 18:53:30,624 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:30,624 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:30,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:30,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1684279878, now seen corresponding path program 1 times [2024-09-12 18:53:30,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:30,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852687615] [2024-09-12 18:53:30,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:30,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:30,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1670834441] [2024-09-12 18:53:30,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:30,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:30,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:30,637 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 18:53:30,638 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 18:53:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:30,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:53:30,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:30,924 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-09-12 18:53:30,924 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:31,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:31,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852687615] [2024-09-12 18:53:31,506 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:31,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670834441] [2024-09-12 18:53:31,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670834441] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:31,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:31,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:53:31,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413787271] [2024-09-12 18:53:31,506 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:31,506 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:53:31,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:31,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:53:31,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:53:31,507 INFO L87 Difference]: Start difference. First operand 850 states and 1291 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 18:53:32,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:32,192 INFO L93 Difference]: Finished difference Result 891 states and 1305 transitions. [2024-09-12 18:53:32,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:53:32,193 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 126 [2024-09-12 18:53:32,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:32,196 INFO L225 Difference]: With dead ends: 891 [2024-09-12 18:53:32,196 INFO L226 Difference]: Without dead ends: 889 [2024-09-12 18:53:32,196 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:53:32,196 INFO L434 NwaCegarLoop]: 137 mSDtfsCounter, 268 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:32,197 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 580 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:53:32,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2024-09-12 18:53:32,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 851. [2024-09-12 18:53:32,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 716 states have (on average 1.6145251396648044) internal successors, (1156), 776 states have internal predecessors, (1156), 67 states have call successors, (67), 9 states have call predecessors, (67), 8 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-09-12 18:53:32,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1288 transitions. [2024-09-12 18:53:32,501 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1288 transitions. Word has length 126 [2024-09-12 18:53:32,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:32,501 INFO L474 AbstractCegarLoop]: Abstraction has 851 states and 1288 transitions. [2024-09-12 18:53:32,501 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 18:53:32,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:32,501 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1288 transitions. [2024-09-12 18:53:32,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-09-12 18:53:32,502 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:32,502 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:53:32,514 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 18:53:32,702 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-09-12 18:53:32,703 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:32,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:32,703 INFO L85 PathProgramCache]: Analyzing trace with hash 673068767, now seen corresponding path program 1 times [2024-09-12 18:53:32,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:32,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837144296] [2024-09-12 18:53:32,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:32,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:32,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1729667538] [2024-09-12 18:53:32,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:32,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:32,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:32,717 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 18:53:32,718 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 18:53:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:32,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:53:32,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:33,209 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 6 proven. 22 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-09-12 18:53:33,209 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:34,971 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 6 proven. 22 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-09-12 18:53:34,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:34,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837144296] [2024-09-12 18:53:34,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:34,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729667538] [2024-09-12 18:53:34,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729667538] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:53:34,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:53:34,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-09-12 18:53:34,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271654816] [2024-09-12 18:53:34,972 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:34,972 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:53:34,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:34,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:53:34,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:53:34,973 INFO L87 Difference]: Start difference. First operand 851 states and 1288 transitions. Second operand has 17 states, 16 states have (on average 9.125) internal successors, (146), 15 states have internal predecessors, (146), 9 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2024-09-12 18:53:40,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:40,117 INFO L93 Difference]: Finished difference Result 876 states and 1290 transitions. [2024-09-12 18:53:40,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 18:53:40,118 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 9.125) internal successors, (146), 15 states have internal predecessors, (146), 9 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) Word has length 127 [2024-09-12 18:53:40,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:40,123 INFO L225 Difference]: With dead ends: 876 [2024-09-12 18:53:40,123 INFO L226 Difference]: Without dead ends: 871 [2024-09-12 18:53:40,123 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=198, Invalid=732, Unknown=0, NotChecked=0, Total=930 [2024-09-12 18:53:40,125 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 967 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:40,125 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 448 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-09-12 18:53:40,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-09-12 18:53:40,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 849. [2024-09-12 18:53:40,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 716 states have (on average 1.5879888268156424) internal successors, (1137), 774 states have internal predecessors, (1137), 67 states have call successors, (67), 9 states have call predecessors, (67), 8 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-09-12 18:53:40,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1269 transitions. [2024-09-12 18:53:40,475 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1269 transitions. Word has length 127 [2024-09-12 18:53:40,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:40,475 INFO L474 AbstractCegarLoop]: Abstraction has 849 states and 1269 transitions. [2024-09-12 18:53:40,476 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 9.125) internal successors, (146), 15 states have internal predecessors, (146), 9 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2024-09-12 18:53:40,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:40,476 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1269 transitions. [2024-09-12 18:53:40,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-09-12 18:53:40,476 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:40,476 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:53:40,488 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-09-12 18:53:40,677 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 18:53:40,677 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:40,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:40,677 INFO L85 PathProgramCache]: Analyzing trace with hash -609704600, now seen corresponding path program 1 times [2024-09-12 18:53:40,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:40,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761437784] [2024-09-12 18:53:40,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:40,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:40,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2043438089] [2024-09-12 18:53:40,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:40,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:40,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:40,694 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 18:53:40,697 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 18:53:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:40,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:53:40,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:41,144 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-09-12 18:53:41,144 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:41,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:41,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761437784] [2024-09-12 18:53:41,248 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:41,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043438089] [2024-09-12 18:53:41,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043438089] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:41,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:41,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:53:41,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110717703] [2024-09-12 18:53:41,249 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:41,250 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:53:41,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:41,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:53:41,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:53:41,250 INFO L87 Difference]: Start difference. First operand 849 states and 1269 transitions. Second operand has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:53:42,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:42,244 INFO L93 Difference]: Finished difference Result 889 states and 1280 transitions. [2024-09-12 18:53:42,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:53:42,244 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 128 [2024-09-12 18:53:42,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:42,247 INFO L225 Difference]: With dead ends: 889 [2024-09-12 18:53:42,247 INFO L226 Difference]: Without dead ends: 883 [2024-09-12 18:53:42,248 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:53:42,248 INFO L434 NwaCegarLoop]: 114 mSDtfsCounter, 262 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:42,248 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 487 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:53:42,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-09-12 18:53:42,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 853. [2024-09-12 18:53:42,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 720 states have (on average 1.573611111111111) internal successors, (1133), 778 states have internal predecessors, (1133), 67 states have call successors, (67), 9 states have call predecessors, (67), 8 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-09-12 18:53:42,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1265 transitions. [2024-09-12 18:53:42,600 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1265 transitions. Word has length 128 [2024-09-12 18:53:42,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:42,600 INFO L474 AbstractCegarLoop]: Abstraction has 853 states and 1265 transitions. [2024-09-12 18:53:42,600 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:53:42,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:42,600 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1265 transitions. [2024-09-12 18:53:42,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-09-12 18:53:42,601 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:42,601 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:53:42,616 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 18:53:42,804 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-09-12 18:53:42,805 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:42,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:42,805 INFO L85 PathProgramCache]: Analyzing trace with hash -486694834, now seen corresponding path program 1 times [2024-09-12 18:53:42,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:42,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130496652] [2024-09-12 18:53:42,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:42,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:42,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1005552668] [2024-09-12 18:53:42,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:42,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:42,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:42,817 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 18:53:42,818 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 18:53:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:42,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:53:42,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:43,162 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-09-12 18:53:43,162 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:43,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:43,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130496652] [2024-09-12 18:53:43,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:43,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005552668] [2024-09-12 18:53:43,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005552668] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:43,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:43,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:53:43,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599568796] [2024-09-12 18:53:43,198 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:43,198 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:53:43,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:43,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:53:43,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:53:43,199 INFO L87 Difference]: Start difference. First operand 853 states and 1265 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 18:53:44,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:44,445 INFO L93 Difference]: Finished difference Result 887 states and 1274 transitions. [2024-09-12 18:53:44,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:53:44,446 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 132 [2024-09-12 18:53:44,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:44,449 INFO L225 Difference]: With dead ends: 887 [2024-09-12 18:53:44,449 INFO L226 Difference]: Without dead ends: 878 [2024-09-12 18:53:44,450 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 134 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:53:44,450 INFO L434 NwaCegarLoop]: 121 mSDtfsCounter, 81 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:44,450 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 544 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:53:44,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-09-12 18:53:44,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 851. [2024-09-12 18:53:44,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 717 states have (on average 1.5760111576011158) internal successors, (1130), 776 states have internal predecessors, (1130), 67 states have call successors, (67), 10 states have call predecessors, (67), 9 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 18:53:44,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1261 transitions. [2024-09-12 18:53:44,815 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1261 transitions. Word has length 132 [2024-09-12 18:53:44,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:44,816 INFO L474 AbstractCegarLoop]: Abstraction has 851 states and 1261 transitions. [2024-09-12 18:53:44,816 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 18:53:44,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:44,816 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1261 transitions. [2024-09-12 18:53:44,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-09-12 18:53:44,817 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:44,817 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:53:44,832 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-09-12 18:53:45,021 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:45,021 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:45,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:45,022 INFO L85 PathProgramCache]: Analyzing trace with hash 437860538, now seen corresponding path program 1 times [2024-09-12 18:53:45,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:45,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344676516] [2024-09-12 18:53:45,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:45,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:45,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1496418043] [2024-09-12 18:53:45,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:45,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:45,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:45,039 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 18:53:45,040 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 18:53:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:45,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 18:53:45,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:45,575 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 18:53:45,575 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:53,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:53,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344676516] [2024-09-12 18:53:53,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:53,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496418043] [2024-09-12 18:53:53,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496418043] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:53,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:53,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 18:53:53,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567921694] [2024-09-12 18:53:53,746 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:53,746 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:53:53,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:53,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:53:53,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=166, Unknown=2, NotChecked=0, Total=210 [2024-09-12 18:53:53,750 INFO L87 Difference]: Start difference. First operand 851 states and 1261 transitions. Second operand has 11 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-09-12 18:53:54,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:54,849 INFO L93 Difference]: Finished difference Result 874 states and 1277 transitions. [2024-09-12 18:53:54,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:53:54,850 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 134 [2024-09-12 18:53:54,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:54,853 INFO L225 Difference]: With dead ends: 874 [2024-09-12 18:53:54,853 INFO L226 Difference]: Without dead ends: 872 [2024-09-12 18:53:54,853 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=85, Invalid=293, Unknown=2, NotChecked=0, Total=380 [2024-09-12 18:53:54,854 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 408 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:54,858 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 544 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:53:54,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2024-09-12 18:53:55,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 851. [2024-09-12 18:53:55,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 717 states have (on average 1.5704323570432357) internal successors, (1126), 776 states have internal predecessors, (1126), 67 states have call successors, (67), 10 states have call predecessors, (67), 9 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 18:53:55,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1257 transitions. [2024-09-12 18:53:55,229 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1257 transitions. Word has length 134 [2024-09-12 18:53:55,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:55,229 INFO L474 AbstractCegarLoop]: Abstraction has 851 states and 1257 transitions. [2024-09-12 18:53:55,230 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-09-12 18:53:55,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:55,230 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1257 transitions. [2024-09-12 18:53:55,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-09-12 18:53:55,230 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:55,230 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:53:55,243 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 18:53:55,431 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:55,431 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:53:55,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:55,431 INFO L85 PathProgramCache]: Analyzing trace with hash 688774898, now seen corresponding path program 1 times [2024-09-12 18:53:55,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:55,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220679163] [2024-09-12 18:53:55,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:55,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:55,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1438286395] [2024-09-12 18:53:55,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:55,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:55,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:55,461 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 18:53:55,467 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 18:53:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:55,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:53:55,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:55,929 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 3 proven. 38 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 18:53:55,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:05,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:05,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220679163] [2024-09-12 18:54:05,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:05,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438286395] [2024-09-12 18:54:05,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438286395] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:05,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:05,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:54:05,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477381444] [2024-09-12 18:54:05,222 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:05,222 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:54:05,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:05,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:54:05,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=95, Unknown=2, NotChecked=0, Total=132 [2024-09-12 18:54:05,223 INFO L87 Difference]: Start difference. First operand 851 states and 1257 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:54:06,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:06,136 INFO L93 Difference]: Finished difference Result 891 states and 1280 transitions. [2024-09-12 18:54:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:54:06,137 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 135 [2024-09-12 18:54:06,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:06,140 INFO L225 Difference]: With dead ends: 891 [2024-09-12 18:54:06,140 INFO L226 Difference]: Without dead ends: 888 [2024-09-12 18:54:06,140 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=45, Invalid=109, Unknown=2, NotChecked=0, Total=156 [2024-09-12 18:54:06,140 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 295 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:06,141 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 473 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:54:06,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2024-09-12 18:54:06,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 851. [2024-09-12 18:54:06,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 717 states have (on average 1.5578800557880055) internal successors, (1117), 776 states have internal predecessors, (1117), 67 states have call successors, (67), 10 states have call predecessors, (67), 9 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 18:54:06,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1248 transitions. [2024-09-12 18:54:06,517 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1248 transitions. Word has length 135 [2024-09-12 18:54:06,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:06,517 INFO L474 AbstractCegarLoop]: Abstraction has 851 states and 1248 transitions. [2024-09-12 18:54:06,517 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:54:06,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:06,518 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1248 transitions. [2024-09-12 18:54:06,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-09-12 18:54:06,518 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:06,518 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:54:06,532 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 18:54:06,722 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-09-12 18:54:06,722 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:06,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:06,723 INFO L85 PathProgramCache]: Analyzing trace with hash -122814532, now seen corresponding path program 1 times [2024-09-12 18:54:06,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:06,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719737238] [2024-09-12 18:54:06,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:06,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:06,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [185369866] [2024-09-12 18:54:06,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:06,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:06,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:06,741 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 18:54:06,744 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 18:54:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:06,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 18:54:06,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:07,339 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 18:54:07,339 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:15,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:15,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719737238] [2024-09-12 18:54:15,778 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:15,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185369866] [2024-09-12 18:54:15,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185369866] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:15,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:15,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:54:15,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434784755] [2024-09-12 18:54:15,778 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:15,779 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:54:15,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:15,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:54:15,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=280, Unknown=2, NotChecked=0, Total=342 [2024-09-12 18:54:15,779 INFO L87 Difference]: Start difference. First operand 851 states and 1248 transitions. Second operand has 13 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-09-12 18:54:17,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:17,607 INFO L93 Difference]: Finished difference Result 882 states and 1278 transitions. [2024-09-12 18:54:17,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:54:17,607 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 136 [2024-09-12 18:54:17,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:17,610 INFO L225 Difference]: With dead ends: 882 [2024-09-12 18:54:17,610 INFO L226 Difference]: Without dead ends: 881 [2024-09-12 18:54:17,611 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=117, Invalid=531, Unknown=2, NotChecked=0, Total=650 [2024-09-12 18:54:17,611 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 621 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:17,611 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 384 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:54:17,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-09-12 18:54:17,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 851. [2024-09-12 18:54:17,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 717 states have (on average 1.5564853556485356) internal successors, (1116), 776 states have internal predecessors, (1116), 67 states have call successors, (67), 10 states have call predecessors, (67), 9 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 18:54:17,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1247 transitions. [2024-09-12 18:54:17,972 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1247 transitions. Word has length 136 [2024-09-12 18:54:17,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:17,972 INFO L474 AbstractCegarLoop]: Abstraction has 851 states and 1247 transitions. [2024-09-12 18:54:17,972 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-09-12 18:54:17,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:17,972 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1247 transitions. [2024-09-12 18:54:17,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-09-12 18:54:17,973 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:17,973 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:54:17,986 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-09-12 18:54:18,173 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 18:54:18,174 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:18,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:18,174 INFO L85 PathProgramCache]: Analyzing trace with hash 487716916, now seen corresponding path program 1 times [2024-09-12 18:54:18,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:18,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645347926] [2024-09-12 18:54:18,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:18,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:18,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884293959] [2024-09-12 18:54:18,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:18,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:18,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:18,192 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 18:54:18,194 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 18:54:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:18,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 18:54:18,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:18,783 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 6 proven. 37 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 18:54:18,783 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:23,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:23,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645347926] [2024-09-12 18:54:23,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:23,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884293959] [2024-09-12 18:54:23,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884293959] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:23,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:23,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 18:54:23,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970804846] [2024-09-12 18:54:23,520 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:23,520 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:54:23,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:23,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:54:23,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=169, Unknown=1, NotChecked=0, Total=210 [2024-09-12 18:54:23,521 INFO L87 Difference]: Start difference. First operand 851 states and 1247 transitions. Second operand has 11 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-09-12 18:54:24,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:24,848 INFO L93 Difference]: Finished difference Result 883 states and 1277 transitions. [2024-09-12 18:54:24,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:54:24,849 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 137 [2024-09-12 18:54:24,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:24,852 INFO L225 Difference]: With dead ends: 883 [2024-09-12 18:54:24,852 INFO L226 Difference]: Without dead ends: 881 [2024-09-12 18:54:24,852 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=85, Invalid=334, Unknown=1, NotChecked=0, Total=420 [2024-09-12 18:54:24,853 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 414 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:24,853 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 482 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:54:24,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-09-12 18:54:25,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 851. [2024-09-12 18:54:25,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 717 states have (on average 1.5509065550906556) internal successors, (1112), 776 states have internal predecessors, (1112), 67 states have call successors, (67), 10 states have call predecessors, (67), 9 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 18:54:25,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1243 transitions. [2024-09-12 18:54:25,208 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1243 transitions. Word has length 137 [2024-09-12 18:54:25,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:25,208 INFO L474 AbstractCegarLoop]: Abstraction has 851 states and 1243 transitions. [2024-09-12 18:54:25,208 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 9.222222222222221) internal successors, (83), 9 states have internal predecessors, (83), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-09-12 18:54:25,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:25,209 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1243 transitions. [2024-09-12 18:54:25,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-09-12 18:54:25,209 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:25,209 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:54:25,222 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 18:54:25,409 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:25,410 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:25,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:25,410 INFO L85 PathProgramCache]: Analyzing trace with hash -2060644674, now seen corresponding path program 1 times [2024-09-12 18:54:25,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:25,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049382508] [2024-09-12 18:54:25,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:25,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:25,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1114641979] [2024-09-12 18:54:25,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:25,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:25,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:25,424 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 18:54:25,429 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 18:54:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:25,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-09-12 18:54:25,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:26,097 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 6 proven. 29 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-09-12 18:54:26,097 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:30,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:30,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049382508] [2024-09-12 18:54:30,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:30,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114641979] [2024-09-12 18:54:30,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114641979] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:30,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:30,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 18:54:30,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820352959] [2024-09-12 18:54:30,818 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:30,818 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:54:30,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:30,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:54:30,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=195, Unknown=1, NotChecked=0, Total=240 [2024-09-12 18:54:30,820 INFO L87 Difference]: Start difference. First operand 851 states and 1243 transitions. Second operand has 11 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:54:32,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:32,043 INFO L93 Difference]: Finished difference Result 872 states and 1259 transitions. [2024-09-12 18:54:32,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:54:32,043 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 138 [2024-09-12 18:54:32,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:32,047 INFO L225 Difference]: With dead ends: 872 [2024-09-12 18:54:32,047 INFO L226 Difference]: Without dead ends: 869 [2024-09-12 18:54:32,047 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=50, Invalid=221, Unknown=1, NotChecked=0, Total=272 [2024-09-12 18:54:32,048 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 260 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:32,048 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 469 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:54:32,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2024-09-12 18:54:32,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 851. [2024-09-12 18:54:32,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 717 states have (on average 1.5439330543933054) internal successors, (1107), 776 states have internal predecessors, (1107), 67 states have call successors, (67), 10 states have call predecessors, (67), 9 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 18:54:32,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1238 transitions. [2024-09-12 18:54:32,415 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1238 transitions. Word has length 138 [2024-09-12 18:54:32,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:32,416 INFO L474 AbstractCegarLoop]: Abstraction has 851 states and 1238 transitions. [2024-09-12 18:54:32,416 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:54:32,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:32,416 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1238 transitions. [2024-09-12 18:54:32,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 18:54:32,416 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:32,417 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:54:32,428 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 18:54:32,620 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:32,620 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:32,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:32,621 INFO L85 PathProgramCache]: Analyzing trace with hash 544524662, now seen corresponding path program 1 times [2024-09-12 18:54:32,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:32,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026485938] [2024-09-12 18:54:32,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:32,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:32,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2098054213] [2024-09-12 18:54:32,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:32,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:32,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:32,644 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 18:54:32,646 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 18:54:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:32,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 18:54:32,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:33,266 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-09-12 18:54:33,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:33,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:33,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026485938] [2024-09-12 18:54:33,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:33,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098054213] [2024-09-12 18:54:33,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098054213] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:33,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:33,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:54:33,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611218541] [2024-09-12 18:54:33,469 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:33,470 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:54:33,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:33,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:54:33,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:54:33,470 INFO L87 Difference]: Start difference. First operand 851 states and 1238 transitions. Second operand has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 10 states have internal predecessors, (85), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:54:34,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:34,415 INFO L93 Difference]: Finished difference Result 870 states and 1254 transitions. [2024-09-12 18:54:34,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:54:34,416 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 10 states have internal predecessors, (85), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 139 [2024-09-12 18:54:34,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:34,418 INFO L225 Difference]: With dead ends: 870 [2024-09-12 18:54:34,418 INFO L226 Difference]: Without dead ends: 869 [2024-09-12 18:54:34,418 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:54:34,419 INFO L434 NwaCegarLoop]: 104 mSDtfsCounter, 288 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:34,419 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 496 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:54:34,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2024-09-12 18:54:34,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 851. [2024-09-12 18:54:34,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 717 states have (on average 1.5411436541143655) internal successors, (1105), 776 states have internal predecessors, (1105), 67 states have call successors, (67), 10 states have call predecessors, (67), 9 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 18:54:34,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1236 transitions. [2024-09-12 18:54:34,784 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1236 transitions. Word has length 139 [2024-09-12 18:54:34,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:34,784 INFO L474 AbstractCegarLoop]: Abstraction has 851 states and 1236 transitions. [2024-09-12 18:54:34,784 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 10 states have internal predecessors, (85), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:54:34,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:34,784 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1236 transitions. [2024-09-12 18:54:34,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-09-12 18:54:34,785 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:34,785 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:54:34,798 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-09-12 18:54:34,989 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,48 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:34,989 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:34,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:34,990 INFO L85 PathProgramCache]: Analyzing trace with hash -572656102, now seen corresponding path program 2 times [2024-09-12 18:54:34,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:34,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553109194] [2024-09-12 18:54:34,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:34,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:35,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [345216915] [2024-09-12 18:54:35,004 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:54:35,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:35,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:35,007 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 18:54:35,009 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 18:54:35,070 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:54:35,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:54:35,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-12 18:54:35,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:35,557 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 12 proven. 22 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-09-12 18:54:35,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:35,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:35,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553109194] [2024-09-12 18:54:35,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:35,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345216915] [2024-09-12 18:54:35,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345216915] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:35,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:35,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:54:35,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358248297] [2024-09-12 18:54:35,750 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:35,751 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:54:35,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:35,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:54:35,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:54:35,751 INFO L87 Difference]: Start difference. First operand 851 states and 1236 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-09-12 18:54:37,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:37,143 INFO L93 Difference]: Finished difference Result 868 states and 1246 transitions. [2024-09-12 18:54:37,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:54:37,144 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 143 [2024-09-12 18:54:37,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:37,147 INFO L225 Difference]: With dead ends: 868 [2024-09-12 18:54:37,147 INFO L226 Difference]: Without dead ends: 866 [2024-09-12 18:54:37,147 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 173 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:54:37,147 INFO L434 NwaCegarLoop]: 118 mSDtfsCounter, 121 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:37,147 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 617 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:54:37,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-09-12 18:54:37,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 859. [2024-09-12 18:54:37,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 723 states have (on average 1.5366528354080222) internal successors, (1111), 782 states have internal predecessors, (1111), 67 states have call successors, (67), 12 states have call predecessors, (67), 11 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 18:54:37,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1242 transitions. [2024-09-12 18:54:37,540 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1242 transitions. Word has length 143 [2024-09-12 18:54:37,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:37,540 INFO L474 AbstractCegarLoop]: Abstraction has 859 states and 1242 transitions. [2024-09-12 18:54:37,540 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-09-12 18:54:37,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:37,540 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1242 transitions. [2024-09-12 18:54:37,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-09-12 18:54:37,541 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:37,541 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:54:37,556 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 18:54:37,745 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-09-12 18:54:37,746 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:37,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:37,746 INFO L85 PathProgramCache]: Analyzing trace with hash -566539311, now seen corresponding path program 1 times [2024-09-12 18:54:37,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:37,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755947614] [2024-09-12 18:54:37,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:37,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:37,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127099746] [2024-09-12 18:54:37,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:37,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:37,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:37,759 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 18:54:37,763 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 18:54:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:37,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:54:37,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:38,710 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 6 proven. 32 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-09-12 18:54:38,710 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:42,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:42,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755947614] [2024-09-12 18:54:42,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:42,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127099746] [2024-09-12 18:54:42,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127099746] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:42,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:42,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:54:42,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502820835] [2024-09-12 18:54:42,943 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:42,943 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:54:42,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:42,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:54:42,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=218, Unknown=1, NotChecked=0, Total=272 [2024-09-12 18:54:42,943 INFO L87 Difference]: Start difference. First operand 859 states and 1242 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:54:45,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:45,425 INFO L93 Difference]: Finished difference Result 876 states and 1258 transitions. [2024-09-12 18:54:45,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:54:45,426 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 145 [2024-09-12 18:54:45,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:45,428 INFO L225 Difference]: With dead ends: 876 [2024-09-12 18:54:45,429 INFO L226 Difference]: Without dead ends: 875 [2024-09-12 18:54:45,429 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=104, Invalid=401, Unknown=1, NotChecked=0, Total=506 [2024-09-12 18:54:45,429 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 496 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:45,429 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 704 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-09-12 18:54:45,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2024-09-12 18:54:45,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 859. [2024-09-12 18:54:45,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 723 states have (on average 1.533886583679115) internal successors, (1109), 782 states have internal predecessors, (1109), 67 states have call successors, (67), 12 states have call predecessors, (67), 11 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 18:54:45,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1240 transitions. [2024-09-12 18:54:45,897 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1240 transitions. Word has length 145 [2024-09-12 18:54:45,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:45,897 INFO L474 AbstractCegarLoop]: Abstraction has 859 states and 1240 transitions. [2024-09-12 18:54:45,897 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:54:45,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:45,897 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1240 transitions. [2024-09-12 18:54:45,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-09-12 18:54:45,898 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:45,898 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:54:45,911 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-09-12 18:54:46,102 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-09-12 18:54:46,103 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:54:46,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:46,103 INFO L85 PathProgramCache]: Analyzing trace with hash -382849336, now seen corresponding path program 1 times [2024-09-12 18:54:46,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:46,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529234093] [2024-09-12 18:54:46,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:46,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:46,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1746831340] [2024-09-12 18:54:46,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:46,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:46,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:46,116 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 18:54:46,117 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 18:54:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:46,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-12 18:54:46,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:47,369 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-09-12 18:54:47,369 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:52,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:52,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529234093] [2024-09-12 18:54:52,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:52,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746831340] [2024-09-12 18:54:52,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746831340] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:52,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:52,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:54:52,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742136190] [2024-09-12 18:54:52,699 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:52,699 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:54:52,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:52,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:54:52,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=245, Unknown=1, NotChecked=0, Total=306 [2024-09-12 18:54:52,700 INFO L87 Difference]: Start difference. First operand 859 states and 1240 transitions. Second operand has 13 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:54:57,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:55:02,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:55:03,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:55:05,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:55:06,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:55:11,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:55:19,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:55:20,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:20,776 INFO L93 Difference]: Finished difference Result 876 states and 1256 transitions. [2024-09-12 18:55:20,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:55:20,777 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 146 [2024-09-12 18:55:20,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:20,779 INFO L225 Difference]: With dead ends: 876 [2024-09-12 18:55:20,779 INFO L226 Difference]: Without dead ends: 875 [2024-09-12 18:55:20,779 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=121, Invalid=428, Unknown=3, NotChecked=0, Total=552 [2024-09-12 18:55:20,779 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 775 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 55 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:20,779 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 443 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1247 Invalid, 4 Unknown, 0 Unchecked, 21.2s Time] [2024-09-12 18:55:20,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2024-09-12 18:55:21,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 859. [2024-09-12 18:55:21,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 723 states have (on average 1.5311203319502074) internal successors, (1107), 782 states have internal predecessors, (1107), 67 states have call successors, (67), 12 states have call predecessors, (67), 11 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 18:55:21,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1238 transitions. [2024-09-12 18:55:21,163 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1238 transitions. Word has length 146 [2024-09-12 18:55:21,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:21,164 INFO L474 AbstractCegarLoop]: Abstraction has 859 states and 1238 transitions. [2024-09-12 18:55:21,164 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:55:21,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:21,164 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1238 transitions. [2024-09-12 18:55:21,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-09-12 18:55:21,165 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:21,165 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:21,180 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-09-12 18:55:21,368 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-09-12 18:55:21,369 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:55:21,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:21,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1968691605, now seen corresponding path program 1 times [2024-09-12 18:55:21,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:21,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667211255] [2024-09-12 18:55:21,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:21,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:21,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [125367850] [2024-09-12 18:55:21,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:21,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:21,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:21,387 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 18:55:21,389 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 18:55:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:21,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-09-12 18:55:21,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:23,118 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-09-12 18:55:23,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:23,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:23,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667211255] [2024-09-12 18:55:23,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:23,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125367850] [2024-09-12 18:55:23,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125367850] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:23,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:23,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:55:23,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881539151] [2024-09-12 18:55:23,196 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:23,196 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:55:23,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:23,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:55:23,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:55:23,197 INFO L87 Difference]: Start difference. First operand 859 states and 1238 transitions. Second operand has 13 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:55:25,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:25,251 INFO L93 Difference]: Finished difference Result 887 states and 1256 transitions. [2024-09-12 18:55:25,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:55:25,252 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 149 [2024-09-12 18:55:25,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:25,254 INFO L225 Difference]: With dead ends: 887 [2024-09-12 18:55:25,254 INFO L226 Difference]: Without dead ends: 877 [2024-09-12 18:55:25,255 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:55:25,255 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 517 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:25,255 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 460 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-09-12 18:55:25,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2024-09-12 18:55:25,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 859. [2024-09-12 18:55:25,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 723 states have (on average 1.5034578146611342) internal successors, (1087), 782 states have internal predecessors, (1087), 67 states have call successors, (67), 12 states have call predecessors, (67), 11 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-09-12 18:55:25,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1218 transitions. [2024-09-12 18:55:25,672 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1218 transitions. Word has length 149 [2024-09-12 18:55:25,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:25,673 INFO L474 AbstractCegarLoop]: Abstraction has 859 states and 1218 transitions. [2024-09-12 18:55:25,673 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:55:25,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:25,673 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1218 transitions. [2024-09-12 18:55:25,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-09-12 18:55:25,674 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:25,674 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:25,690 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 18:55:25,877 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,52 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:25,878 INFO L399 AbstractCegarLoop]: === Iteration 58 === Targeting mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:55:25,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:25,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1674237913, now seen corresponding path program 1 times [2024-09-12 18:55:25,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:25,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269998658] [2024-09-12 18:55:25,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:25,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:25,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:55:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:25,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:55:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:25,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:55:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:25,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:55:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:25,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:55:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:25,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:55:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:25,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:55:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:25,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:55:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:25,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:55:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:25,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:55:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:26,001 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:55:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:26,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 18:55:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:26,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 18:55:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:26,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 18:55:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:26,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:55:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:26,011 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:55:26,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:26,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269998658] [2024-09-12 18:55:26,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269998658] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:26,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647313436] [2024-09-12 18:55:26,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:26,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:26,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:26,013 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 18:55:26,014 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 18:55:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:26,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:55:26,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:55:26,329 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:26,512 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:55:26,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647313436] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:55:26,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:55:26,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-09-12 18:55:26,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644904408] [2024-09-12 18:55:26,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:26,514 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:55:26,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:26,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:55:26,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:55:26,514 INFO L87 Difference]: Start difference. First operand 859 states and 1218 transitions. Second operand has 16 states, 15 states have (on average 18.6) internal successors, (279), 16 states have internal predecessors, (279), 15 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (42), 15 states have call predecessors, (42), 15 states have call successors, (42) [2024-09-12 18:55:28,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:28,316 INFO L93 Difference]: Finished difference Result 953 states and 1324 transitions. [2024-09-12 18:55:28,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:55:28,317 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 18.6) internal successors, (279), 16 states have internal predecessors, (279), 15 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (42), 15 states have call predecessors, (42), 15 states have call successors, (42) Word has length 165 [2024-09-12 18:55:28,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:28,319 INFO L225 Difference]: With dead ends: 953 [2024-09-12 18:55:28,319 INFO L226 Difference]: Without dead ends: 952 [2024-09-12 18:55:28,320 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:55:28,320 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 616 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:28,320 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 495 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 18:55:28,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-09-12 18:55:28,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 949. [2024-09-12 18:55:28,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 805 states have (on average 1.457142857142857) internal successors, (1173), 864 states have internal predecessors, (1173), 75 states have call successors, (75), 12 states have call predecessors, (75), 11 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-09-12 18:55:28,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1320 transitions. [2024-09-12 18:55:28,815 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1320 transitions. Word has length 165 [2024-09-12 18:55:28,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:28,815 INFO L474 AbstractCegarLoop]: Abstraction has 949 states and 1320 transitions. [2024-09-12 18:55:28,815 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 18.6) internal successors, (279), 16 states have internal predecessors, (279), 15 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (42), 15 states have call predecessors, (42), 15 states have call successors, (42) [2024-09-12 18:55:28,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:28,815 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1320 transitions. [2024-09-12 18:55:28,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-09-12 18:55:28,816 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:28,816 INFO L216 NwaCegarLoop]: trace histogram [8, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:28,828 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 18:55:29,017 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,53 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:29,017 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:55:29,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:29,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1683101028, now seen corresponding path program 3 times [2024-09-12 18:55:29,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:29,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415388940] [2024-09-12 18:55:29,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:29,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:29,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [391286894] [2024-09-12 18:55:29,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:55:29,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:29,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:29,033 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 18:55:29,033 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 18:55:29,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 18:55:29,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:55:29,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-09-12 18:55:29,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:30,306 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 46 proven. 44 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-09-12 18:55:30,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:32,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:32,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415388940] [2024-09-12 18:55:32,822 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:32,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391286894] [2024-09-12 18:55:32,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391286894] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:32,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:32,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-09-12 18:55:32,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089807142] [2024-09-12 18:55:32,823 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:32,823 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:55:32,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:32,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:55:32,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:55:32,824 INFO L87 Difference]: Start difference. First operand 949 states and 1320 transitions. Second operand has 16 states, 16 states have (on average 6.9375) internal successors, (111), 15 states have internal predecessors, (111), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2024-09-12 18:55:35,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:35,042 INFO L93 Difference]: Finished difference Result 960 states and 1327 transitions. [2024-09-12 18:55:35,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:55:35,043 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.9375) internal successors, (111), 15 states have internal predecessors, (111), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 168 [2024-09-12 18:55:35,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:35,045 INFO L225 Difference]: With dead ends: 960 [2024-09-12 18:55:35,045 INFO L226 Difference]: Without dead ends: 958 [2024-09-12 18:55:35,045 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:55:35,045 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 317 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:35,045 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 813 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-09-12 18:55:35,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2024-09-12 18:55:35,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 953. [2024-09-12 18:55:35,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 808 states have (on average 1.4554455445544554) internal successors, (1176), 867 states have internal predecessors, (1176), 75 states have call successors, (75), 13 states have call predecessors, (75), 12 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-09-12 18:55:35,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1323 transitions. [2024-09-12 18:55:35,538 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1323 transitions. Word has length 168 [2024-09-12 18:55:35,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:35,538 INFO L474 AbstractCegarLoop]: Abstraction has 953 states and 1323 transitions. [2024-09-12 18:55:35,538 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.9375) internal successors, (111), 15 states have internal predecessors, (111), 4 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2024-09-12 18:55:35,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:35,538 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1323 transitions. [2024-09-12 18:55:35,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-09-12 18:55:35,539 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:35,539 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:35,546 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:35,743 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-09-12 18:55:35,743 INFO L399 AbstractCegarLoop]: === Iteration 60 === Targeting mainErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:55:35,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:35,744 INFO L85 PathProgramCache]: Analyzing trace with hash -123843877, now seen corresponding path program 1 times [2024-09-12 18:55:35,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:35,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562097858] [2024-09-12 18:55:35,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:35,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:35,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1211990427] [2024-09-12 18:55:35,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:35,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:35,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:35,760 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 18:55:35,764 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 18:55:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:35,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:55:35,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:36,050 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:55:36,050 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:36,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:36,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562097858] [2024-09-12 18:55:36,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:36,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211990427] [2024-09-12 18:55:36,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211990427] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:36,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:36,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:55:36,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695272460] [2024-09-12 18:55:36,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:36,051 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:55:36,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:36,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:55:36,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:55:36,051 INFO L87 Difference]: Start difference. First operand 953 states and 1323 transitions. Second operand has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-09-12 18:55:36,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:36,888 INFO L93 Difference]: Finished difference Result 957 states and 1323 transitions. [2024-09-12 18:55:36,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:55:36,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 169 [2024-09-12 18:55:36,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:36,891 INFO L225 Difference]: With dead ends: 957 [2024-09-12 18:55:36,891 INFO L226 Difference]: Without dead ends: 956 [2024-09-12 18:55:36,891 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:55:36,891 INFO L434 NwaCegarLoop]: 161 mSDtfsCounter, 29 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:36,891 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 299 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:55:36,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-09-12 18:55:37,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 953. [2024-09-12 18:55:37,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 808 states have (on average 1.4542079207920793) internal successors, (1175), 867 states have internal predecessors, (1175), 75 states have call successors, (75), 13 states have call predecessors, (75), 12 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-09-12 18:55:37,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1322 transitions. [2024-09-12 18:55:37,390 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1322 transitions. Word has length 169 [2024-09-12 18:55:37,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:37,391 INFO L474 AbstractCegarLoop]: Abstraction has 953 states and 1322 transitions. [2024-09-12 18:55:37,391 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-09-12 18:55:37,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:37,391 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1322 transitions. [2024-09-12 18:55:37,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-09-12 18:55:37,392 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:37,392 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:37,404 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2024-09-12 18:55:37,592 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-09-12 18:55:37,593 INFO L399 AbstractCegarLoop]: === Iteration 61 === Targeting mainErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:55:37,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:37,593 INFO L85 PathProgramCache]: Analyzing trace with hash 455807296, now seen corresponding path program 1 times [2024-09-12 18:55:37,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:37,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846368933] [2024-09-12 18:55:37,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:37,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:37,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1481400463] [2024-09-12 18:55:37,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:37,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:37,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:37,605 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:37,607 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-09-12 18:55:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:37,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:55:37,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:37,871 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:55:37,871 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:38,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:38,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846368933] [2024-09-12 18:55:38,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:38,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481400463] [2024-09-12 18:55:38,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481400463] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:38,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:38,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 18:55:38,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172663165] [2024-09-12 18:55:38,475 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:38,475 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:55:38,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:38,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:55:38,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:55:38,476 INFO L87 Difference]: Start difference. First operand 953 states and 1322 transitions. Second operand has 5 states, 4 states have (on average 25.75) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-09-12 18:55:39,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:39,517 INFO L93 Difference]: Finished difference Result 966 states and 1333 transitions. [2024-09-12 18:55:39,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:55:39,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.75) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 170 [2024-09-12 18:55:39,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:39,519 INFO L225 Difference]: With dead ends: 966 [2024-09-12 18:55:39,519 INFO L226 Difference]: Without dead ends: 965 [2024-09-12 18:55:39,520 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:55:39,520 INFO L434 NwaCegarLoop]: 136 mSDtfsCounter, 70 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:39,520 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 450 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:55:39,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-09-12 18:55:40,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 960. [2024-09-12 18:55:40,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 815 states have (on average 1.4503067484662577) internal successors, (1182), 874 states have internal predecessors, (1182), 75 states have call successors, (75), 13 states have call predecessors, (75), 12 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-09-12 18:55:40,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1329 transitions. [2024-09-12 18:55:40,023 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1329 transitions. Word has length 170 [2024-09-12 18:55:40,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:40,024 INFO L474 AbstractCegarLoop]: Abstraction has 960 states and 1329 transitions. [2024-09-12 18:55:40,024 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.75) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-09-12 18:55:40,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:40,024 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1329 transitions. [2024-09-12 18:55:40,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-09-12 18:55:40,025 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:40,025 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 18:55:40,037 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-09-12 18:55:40,225 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,56 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:40,225 INFO L399 AbstractCegarLoop]: === Iteration 62 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:55:40,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:40,226 INFO L85 PathProgramCache]: Analyzing trace with hash -934566471, now seen corresponding path program 2 times [2024-09-12 18:55:40,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:40,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787516031] [2024-09-12 18:55:40,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:40,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:40,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1675274250] [2024-09-12 18:55:40,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:55:40,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:40,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:40,248 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:40,257 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-09-12 18:55:40,323 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:55:40,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:55:40,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:55:40,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:40,913 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 15 proven. 73 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-09-12 18:55:40,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:41,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:41,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787516031] [2024-09-12 18:55:41,282 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:41,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675274250] [2024-09-12 18:55:41,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675274250] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:41,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:41,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:55:41,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107203958] [2024-09-12 18:55:41,282 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:41,282 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:55:41,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:41,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:55:41,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:55:41,283 INFO L87 Difference]: Start difference. First operand 960 states and 1329 transitions. Second operand has 12 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 6 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 18:55:42,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:42,866 INFO L93 Difference]: Finished difference Result 964 states and 1330 transitions. [2024-09-12 18:55:42,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:55:42,867 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 6 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 170 [2024-09-12 18:55:42,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:42,870 INFO L225 Difference]: With dead ends: 964 [2024-09-12 18:55:42,870 INFO L226 Difference]: Without dead ends: 962 [2024-09-12 18:55:42,870 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:55:42,871 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 298 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:42,871 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 690 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:55:42,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2024-09-12 18:55:43,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 960. [2024-09-12 18:55:43,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 815 states have (on average 1.4478527607361964) internal successors, (1180), 874 states have internal predecessors, (1180), 75 states have call successors, (75), 13 states have call predecessors, (75), 12 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-09-12 18:55:43,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1327 transitions. [2024-09-12 18:55:43,384 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1327 transitions. Word has length 170 [2024-09-12 18:55:43,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:43,384 INFO L474 AbstractCegarLoop]: Abstraction has 960 states and 1327 transitions. [2024-09-12 18:55:43,384 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 6 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 18:55:43,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:43,385 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1327 transitions. [2024-09-12 18:55:43,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-09-12 18:55:43,385 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:43,385 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:43,399 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:43,586 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2024-09-12 18:55:43,586 INFO L399 AbstractCegarLoop]: === Iteration 63 === Targeting mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:55:43,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:43,586 INFO L85 PathProgramCache]: Analyzing trace with hash -260628065, now seen corresponding path program 1 times [2024-09-12 18:55:43,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:43,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409285200] [2024-09-12 18:55:43,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:43,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:55:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:55:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,715 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:55:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:55:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:55:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,719 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:55:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:55:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:55:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:55:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:55:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:55:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 18:55:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:55:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 18:55:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 18:55:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,740 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:55:43,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:43,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409285200] [2024-09-12 18:55:43,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409285200] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:43,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096122298] [2024-09-12 18:55:43,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:43,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:43,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:43,742 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:43,746 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-09-12 18:55:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:43,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:55:43,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:44,104 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:55:44,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:44,281 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:55:44,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096122298] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:55:44,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:55:44,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-09-12 18:55:44,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473683447] [2024-09-12 18:55:44,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:44,282 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 18:55:44,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:44,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 18:55:44,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:55:44,283 INFO L87 Difference]: Start difference. First operand 960 states and 1327 transitions. Second operand has 19 states, 18 states have (on average 16.666666666666668) internal successors, (300), 19 states have internal predecessors, (300), 15 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (42), 15 states have call predecessors, (42), 15 states have call successors, (42) [2024-09-12 18:55:48,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:48,729 INFO L93 Difference]: Finished difference Result 1810 states and 2379 transitions. [2024-09-12 18:55:48,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-09-12 18:55:48,729 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 16.666666666666668) internal successors, (300), 19 states have internal predecessors, (300), 15 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (42), 15 states have call predecessors, (42), 15 states have call successors, (42) Word has length 172 [2024-09-12 18:55:48,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:48,733 INFO L225 Difference]: With dead ends: 1810 [2024-09-12 18:55:48,733 INFO L226 Difference]: Without dead ends: 1809 [2024-09-12 18:55:48,733 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1643 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1211, Invalid=3901, Unknown=0, NotChecked=0, Total=5112 [2024-09-12 18:55:48,734 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 2180 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2181 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:48,734 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2181 Valid, 835 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-09-12 18:55:48,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2024-09-12 18:55:49,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1406. [2024-09-12 18:55:49,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1225 states have (on average 1.5404081632653062) internal successors, (1887), 1284 states have internal predecessors, (1887), 111 states have call successors, (111), 13 states have call predecessors, (111), 12 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-09-12 18:55:49,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 2106 transitions. [2024-09-12 18:55:49,577 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 2106 transitions. Word has length 172 [2024-09-12 18:55:49,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:49,577 INFO L474 AbstractCegarLoop]: Abstraction has 1406 states and 2106 transitions. [2024-09-12 18:55:49,577 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 16.666666666666668) internal successors, (300), 19 states have internal predecessors, (300), 15 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (42), 15 states have call predecessors, (42), 15 states have call successors, (42) [2024-09-12 18:55:49,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:49,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 2106 transitions. [2024-09-12 18:55:49,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-09-12 18:55:49,578 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:49,579 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:49,591 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:49,779 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,58 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:49,779 INFO L399 AbstractCegarLoop]: === Iteration 64 === Targeting mainErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:55:49,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:49,780 INFO L85 PathProgramCache]: Analyzing trace with hash -55846686, now seen corresponding path program 1 times [2024-09-12 18:55:49,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:49,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971996263] [2024-09-12 18:55:49,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:49,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:49,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [17836802] [2024-09-12 18:55:49,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:49,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:49,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:49,798 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:49,802 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-09-12 18:55:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:49,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:55:49,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:50,282 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:55:50,283 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:50,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:50,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971996263] [2024-09-12 18:55:50,283 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:50,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17836802] [2024-09-12 18:55:50,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17836802] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:50,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:55:50,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:55:50,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487215801] [2024-09-12 18:55:50,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:50,285 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:55:50,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:50,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:55:50,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:55:50,285 INFO L87 Difference]: Start difference. First operand 1406 states and 2106 transitions. Second operand has 6 states, 5 states have (on average 21.0) internal successors, (105), 6 states have internal predecessors, (105), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-09-12 18:55:51,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:51,798 INFO L93 Difference]: Finished difference Result 1410 states and 2106 transitions. [2024-09-12 18:55:51,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:55:51,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 6 states have internal predecessors, (105), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 172 [2024-09-12 18:55:51,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:51,802 INFO L225 Difference]: With dead ends: 1410 [2024-09-12 18:55:51,802 INFO L226 Difference]: Without dead ends: 1409 [2024-09-12 18:55:51,806 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:55:51,806 INFO L434 NwaCegarLoop]: 158 mSDtfsCounter, 12 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:51,807 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 503 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:55:51,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2024-09-12 18:55:52,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1406. [2024-09-12 18:55:52,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1225 states have (on average 1.539591836734694) internal successors, (1886), 1284 states have internal predecessors, (1886), 111 states have call successors, (111), 13 states have call predecessors, (111), 12 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-09-12 18:55:52,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 2105 transitions. [2024-09-12 18:55:52,579 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 2105 transitions. Word has length 172 [2024-09-12 18:55:52,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:52,580 INFO L474 AbstractCegarLoop]: Abstraction has 1406 states and 2105 transitions. [2024-09-12 18:55:52,580 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 6 states have internal predecessors, (105), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-09-12 18:55:52,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:52,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 2105 transitions. [2024-09-12 18:55:52,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-09-12 18:55:52,581 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:52,581 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:52,593 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:52,781 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2024-09-12 18:55:52,782 INFO L399 AbstractCegarLoop]: === Iteration 65 === Targeting mainErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:55:52,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:52,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1357001089, now seen corresponding path program 1 times [2024-09-12 18:55:52,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:52,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93002752] [2024-09-12 18:55:52,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:52,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,959 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:55:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:55:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:55:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:55:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:55:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:55:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:55:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:55:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:55:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:55:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:55:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-09-12 18:55:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:55:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-09-12 18:55:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-09-12 18:55:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:52,976 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:55:52,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:52,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93002752] [2024-09-12 18:55:52,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93002752] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:52,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946896426] [2024-09-12 18:55:52,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:52,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:52,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:52,979 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:52,980 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-09-12 18:55:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:53,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:55:53,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:53,113 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:55:53,113 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:55:53,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946896426] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:55:53,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:53,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-09-12 18:55:53,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064939162] [2024-09-12 18:55:53,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:55:53,114 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:55:53,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:53,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:55:53,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:55:53,114 INFO L87 Difference]: Start difference. First operand 1406 states and 2105 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-09-12 18:55:54,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:54,039 INFO L93 Difference]: Finished difference Result 1774 states and 2622 transitions. [2024-09-12 18:55:54,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:55:54,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 174 [2024-09-12 18:55:54,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:54,042 INFO L225 Difference]: With dead ends: 1774 [2024-09-12 18:55:54,042 INFO L226 Difference]: Without dead ends: 911 [2024-09-12 18:55:54,044 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 202 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 18:55:54,044 INFO L434 NwaCegarLoop]: 186 mSDtfsCounter, 164 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:54,044 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 606 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:55:54,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2024-09-12 18:55:54,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 888. [2024-09-12 18:55:54,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 748 states have (on average 1.3836898395721926) internal successors, (1035), 806 states have internal predecessors, (1035), 71 states have call successors, (71), 13 states have call predecessors, (71), 12 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-09-12 18:55:54,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1174 transitions. [2024-09-12 18:55:54,571 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1174 transitions. Word has length 174 [2024-09-12 18:55:54,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:54,572 INFO L474 AbstractCegarLoop]: Abstraction has 888 states and 1174 transitions. [2024-09-12 18:55:54,572 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-09-12 18:55:54,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:54,572 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1174 transitions. [2024-09-12 18:55:54,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-09-12 18:55:54,572 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:54,573 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:55:54,584 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-09-12 18:55:54,776 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,60 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:54,776 INFO L399 AbstractCegarLoop]: === Iteration 66 === Targeting mainErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:55:54,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:54,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1576211329, now seen corresponding path program 1 times [2024-09-12 18:55:54,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:54,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68808380] [2024-09-12 18:55:54,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:54,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:54,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644917198] [2024-09-12 18:55:54,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:54,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:54,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:54,789 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:54,791 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-09-12 18:55:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:54,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 18:55:54,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:55,726 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 6 proven. 62 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 18:55:55,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:55,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:55,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68808380] [2024-09-12 18:55:55,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:55,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644917198] [2024-09-12 18:55:55,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644917198] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:55,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:55,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 18:55:55,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136987492] [2024-09-12 18:55:55,903 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:55,904 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:55:55,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:55,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:55:55,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:55:55,905 INFO L87 Difference]: Start difference. First operand 888 states and 1174 transitions. Second operand has 14 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 18:55:57,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:57,843 INFO L93 Difference]: Finished difference Result 1007 states and 1346 transitions. [2024-09-12 18:55:57,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:55:57,843 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 175 [2024-09-12 18:55:57,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:57,846 INFO L225 Difference]: With dead ends: 1007 [2024-09-12 18:55:57,846 INFO L226 Difference]: Without dead ends: 1003 [2024-09-12 18:55:57,846 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2024-09-12 18:55:57,847 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 372 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 2303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:57,847 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 817 Invalid, 2303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:55:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-09-12 18:55:58,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 985. [2024-09-12 18:55:58,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 837 states have (on average 1.4014336917562724) internal successors, (1173), 895 states have internal predecessors, (1173), 79 states have call successors, (79), 13 states have call predecessors, (79), 12 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-09-12 18:55:58,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1328 transitions. [2024-09-12 18:55:58,447 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1328 transitions. Word has length 175 [2024-09-12 18:55:58,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:58,447 INFO L474 AbstractCegarLoop]: Abstraction has 985 states and 1328 transitions. [2024-09-12 18:55:58,448 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 18:55:58,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:58,448 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1328 transitions. [2024-09-12 18:55:58,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-09-12 18:55:58,448 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:58,448 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:55:58,460 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2024-09-12 18:55:58,649 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2024-09-12 18:55:58,649 INFO L399 AbstractCegarLoop]: === Iteration 67 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:55:58,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:58,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1223780093, now seen corresponding path program 1 times [2024-09-12 18:55:58,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:58,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929221988] [2024-09-12 18:55:58,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:58,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:58,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [535743511] [2024-09-12 18:55:58,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:58,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:58,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:58,674 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:58,679 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-09-12 18:55:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:55:58,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:55:58,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:58,911 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 8 proven. 55 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-09-12 18:55:58,911 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:58,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:58,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929221988] [2024-09-12 18:55:58,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:58,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535743511] [2024-09-12 18:55:58,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535743511] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:58,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:58,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:55:58,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508026063] [2024-09-12 18:55:58,955 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:58,955 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:55:58,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:58,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:55:58,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:55:58,956 INFO L87 Difference]: Start difference. First operand 985 states and 1328 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:56:00,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:00,446 INFO L93 Difference]: Finished difference Result 1088 states and 1354 transitions. [2024-09-12 18:56:00,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:56:00,446 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 176 [2024-09-12 18:56:00,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:00,450 INFO L225 Difference]: With dead ends: 1088 [2024-09-12 18:56:00,450 INFO L226 Difference]: Without dead ends: 1086 [2024-09-12 18:56:00,450 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:56:00,450 INFO L434 NwaCegarLoop]: 155 mSDtfsCounter, 504 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:00,450 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 945 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:56:00,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2024-09-12 18:56:01,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 985. [2024-09-12 18:56:01,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 837 states have (on average 1.3978494623655915) internal successors, (1170), 895 states have internal predecessors, (1170), 79 states have call successors, (79), 13 states have call predecessors, (79), 12 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-09-12 18:56:01,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1325 transitions. [2024-09-12 18:56:01,153 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1325 transitions. Word has length 176 [2024-09-12 18:56:01,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:01,153 INFO L474 AbstractCegarLoop]: Abstraction has 985 states and 1325 transitions. [2024-09-12 18:56:01,153 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-09-12 18:56:01,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1325 transitions. [2024-09-12 18:56:01,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-09-12 18:56:01,154 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:01,154 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:01,166 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:01,354 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,62 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:01,355 INFO L399 AbstractCegarLoop]: === Iteration 68 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:56:01,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:01,355 INFO L85 PathProgramCache]: Analyzing trace with hash 717522867, now seen corresponding path program 1 times [2024-09-12 18:56:01,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:01,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834041419] [2024-09-12 18:56:01,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:01,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:01,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [517033889] [2024-09-12 18:56:01,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:01,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:01,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:01,371 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:01,372 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-09-12 18:56:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:01,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:56:01,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:01,643 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 50 proven. 15 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-09-12 18:56:01,643 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:02,236 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 5 proven. 60 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-09-12 18:56:02,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:02,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834041419] [2024-09-12 18:56:02,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:02,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517033889] [2024-09-12 18:56:02,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517033889] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:02,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:56:02,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2024-09-12 18:56:02,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421848741] [2024-09-12 18:56:02,237 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:02,237 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:56:02,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:02,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:56:02,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:56:02,238 INFO L87 Difference]: Start difference. First operand 985 states and 1325 transitions. Second operand has 18 states, 17 states have (on average 12.705882352941176) internal successors, (216), 16 states have internal predecessors, (216), 8 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 8 states have call predecessors, (28), 8 states have call successors, (28) [2024-09-12 18:56:05,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:05,950 INFO L93 Difference]: Finished difference Result 1523 states and 2114 transitions. [2024-09-12 18:56:05,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-12 18:56:05,951 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 12.705882352941176) internal successors, (216), 16 states have internal predecessors, (216), 8 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 8 states have call predecessors, (28), 8 states have call successors, (28) Word has length 177 [2024-09-12 18:56:05,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:05,954 INFO L225 Difference]: With dead ends: 1523 [2024-09-12 18:56:05,954 INFO L226 Difference]: Without dead ends: 1519 [2024-09-12 18:56:05,954 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=477, Invalid=1329, Unknown=0, NotChecked=0, Total=1806 [2024-09-12 18:56:05,956 INFO L434 NwaCegarLoop]: 142 mSDtfsCounter, 1086 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:05,956 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 893 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-09-12 18:56:05,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2024-09-12 18:56:06,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1415. [2024-09-12 18:56:06,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1232 states have (on average 1.4545454545454546) internal successors, (1792), 1289 states have internal predecessors, (1792), 115 states have call successors, (115), 13 states have call predecessors, (115), 12 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-09-12 18:56:06,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 2019 transitions. [2024-09-12 18:56:06,797 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 2019 transitions. Word has length 177 [2024-09-12 18:56:06,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:06,797 INFO L474 AbstractCegarLoop]: Abstraction has 1415 states and 2019 transitions. [2024-09-12 18:56:06,797 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 12.705882352941176) internal successors, (216), 16 states have internal predecessors, (216), 8 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 8 states have call predecessors, (28), 8 states have call successors, (28) [2024-09-12 18:56:06,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:06,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 2019 transitions. [2024-09-12 18:56:06,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-09-12 18:56:06,798 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:06,798 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:06,810 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2024-09-12 18:56:06,999 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,63 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:06,999 INFO L399 AbstractCegarLoop]: === Iteration 69 === Targeting mainErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:56:06,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:06,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1384374657, now seen corresponding path program 1 times [2024-09-12 18:56:06,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:06,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622953720] [2024-09-12 18:56:06,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:07,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:07,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1106095074] [2024-09-12 18:56:07,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:07,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:07,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:07,012 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:07,019 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-09-12 18:56:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:07,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 18:56:07,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:08,093 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 6 proven. 62 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 18:56:08,093 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:18,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:18,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622953720] [2024-09-12 18:56:18,117 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:18,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106095074] [2024-09-12 18:56:18,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106095074] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:18,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:18,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 18:56:18,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968193478] [2024-09-12 18:56:18,118 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:18,118 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:56:18,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:18,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:56:18,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=230, Unknown=5, NotChecked=0, Total=306 [2024-09-12 18:56:18,119 INFO L87 Difference]: Start difference. First operand 1415 states and 2019 transitions. Second operand has 14 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 18:56:19,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:19,984 INFO L93 Difference]: Finished difference Result 1446 states and 2046 transitions. [2024-09-12 18:56:19,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:56:19,984 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 177 [2024-09-12 18:56:19,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:19,988 INFO L225 Difference]: With dead ends: 1446 [2024-09-12 18:56:19,988 INFO L226 Difference]: Without dead ends: 1443 [2024-09-12 18:56:19,989 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=167, Invalid=530, Unknown=5, NotChecked=0, Total=702 [2024-09-12 18:56:19,989 INFO L434 NwaCegarLoop]: 99 mSDtfsCounter, 306 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:19,989 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 489 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:56:19,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2024-09-12 18:56:20,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1417. [2024-09-12 18:56:20,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 1234 states have (on average 1.4473257698541329) internal successors, (1786), 1291 states have internal predecessors, (1786), 115 states have call successors, (115), 13 states have call predecessors, (115), 12 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-09-12 18:56:20,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 2013 transitions. [2024-09-12 18:56:20,835 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 2013 transitions. Word has length 177 [2024-09-12 18:56:20,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:20,835 INFO L474 AbstractCegarLoop]: Abstraction has 1417 states and 2013 transitions. [2024-09-12 18:56:20,835 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 18:56:20,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:20,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 2013 transitions. [2024-09-12 18:56:20,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-09-12 18:56:20,836 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:20,836 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:20,849 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2024-09-12 18:56:21,040 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2024-09-12 18:56:21,041 INFO L399 AbstractCegarLoop]: === Iteration 70 === Targeting mainErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:56:21,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:21,041 INFO L85 PathProgramCache]: Analyzing trace with hash -34058391, now seen corresponding path program 1 times [2024-09-12 18:56:21,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:21,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170809926] [2024-09-12 18:56:21,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:21,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:21,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1112997015] [2024-09-12 18:56:21,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:21,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:21,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:21,057 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:21,061 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-09-12 18:56:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:21,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 18:56:21,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:22,036 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 48 proven. 20 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 18:56:22,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:28,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:28,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170809926] [2024-09-12 18:56:28,255 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:28,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112997015] [2024-09-12 18:56:28,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112997015] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:28,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:28,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 18:56:28,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845285963] [2024-09-12 18:56:28,256 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:28,256 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:56:28,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:28,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:56:28,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=233, Unknown=3, NotChecked=0, Total=306 [2024-09-12 18:56:28,256 INFO L87 Difference]: Start difference. First operand 1417 states and 2013 transitions. Second operand has 14 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 18:56:30,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:30,312 INFO L93 Difference]: Finished difference Result 1445 states and 2030 transitions. [2024-09-12 18:56:30,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:56:30,313 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 178 [2024-09-12 18:56:30,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:30,316 INFO L225 Difference]: With dead ends: 1445 [2024-09-12 18:56:30,316 INFO L226 Difference]: Without dead ends: 1442 [2024-09-12 18:56:30,316 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=179, Invalid=574, Unknown=3, NotChecked=0, Total=756 [2024-09-12 18:56:30,316 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 246 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 1974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:30,317 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 617 Invalid, 1974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:56:30,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2024-09-12 18:56:31,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1417. [2024-09-12 18:56:31,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 1234 states have (on average 1.4335494327390599) internal successors, (1769), 1291 states have internal predecessors, (1769), 115 states have call successors, (115), 13 states have call predecessors, (115), 12 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-09-12 18:56:31,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 1996 transitions. [2024-09-12 18:56:31,211 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 1996 transitions. Word has length 178 [2024-09-12 18:56:31,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:31,211 INFO L474 AbstractCegarLoop]: Abstraction has 1417 states and 1996 transitions. [2024-09-12 18:56:31,211 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 18:56:31,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:31,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 1996 transitions. [2024-09-12 18:56:31,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-09-12 18:56:31,212 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:31,212 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:56:31,224 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2024-09-12 18:56:31,416 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-09-12 18:56:31,417 INFO L399 AbstractCegarLoop]: === Iteration 71 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:56:31,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:31,417 INFO L85 PathProgramCache]: Analyzing trace with hash -35720725, now seen corresponding path program 1 times [2024-09-12 18:56:31,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:31,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533003403] [2024-09-12 18:56:31,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:31,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:56:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:56:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:56:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:56:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:56:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 18:56:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 18:56:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-09-12 18:56:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:56:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:56:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:56:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 18:56:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-09-12 18:56:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 18:56:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:56:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,512 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:56:31,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:31,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533003403] [2024-09-12 18:56:31,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533003403] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:56:31,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507837956] [2024-09-12 18:56:31,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:31,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:31,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:31,514 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:31,522 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-09-12 18:56:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:31,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:56:31,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:31,684 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:56:31,684 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:56:31,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507837956] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:56:31,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:56:31,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2024-09-12 18:56:31,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250730308] [2024-09-12 18:56:31,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:56:31,684 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:56:31,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:31,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:56:31,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:56:31,685 INFO L87 Difference]: Start difference. First operand 1417 states and 1996 transitions. Second operand has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-09-12 18:56:33,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:56:33,002 INFO L93 Difference]: Finished difference Result 1449 states and 1996 transitions. [2024-09-12 18:56:33,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:56:33,002 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 178 [2024-09-12 18:56:33,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:56:33,005 INFO L225 Difference]: With dead ends: 1449 [2024-09-12 18:56:33,005 INFO L226 Difference]: Without dead ends: 1448 [2024-09-12 18:56:33,006 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:56:33,006 INFO L434 NwaCegarLoop]: 241 mSDtfsCounter, 342 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:56:33,006 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 1159 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:56:33,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2024-09-12 18:56:33,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1416. [2024-09-12 18:56:33,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1234 states have (on average 1.4294975688816856) internal successors, (1764), 1290 states have internal predecessors, (1764), 115 states have call successors, (115), 13 states have call predecessors, (115), 12 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-09-12 18:56:33,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1991 transitions. [2024-09-12 18:56:33,868 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1991 transitions. Word has length 178 [2024-09-12 18:56:33,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:56:33,869 INFO L474 AbstractCegarLoop]: Abstraction has 1416 states and 1991 transitions. [2024-09-12 18:56:33,869 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.857142857142858) internal successors, (111), 8 states have internal predecessors, (111), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-09-12 18:56:33,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:33,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1991 transitions. [2024-09-12 18:56:33,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-09-12 18:56:33,870 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:56:33,870 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:56:33,882 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2024-09-12 18:56:34,070 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,66 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:34,071 INFO L399 AbstractCegarLoop]: === Iteration 72 === Targeting mainErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:56:34,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:56:34,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1055809917, now seen corresponding path program 1 times [2024-09-12 18:56:34,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:56:34,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926333036] [2024-09-12 18:56:34,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:34,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:56:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:56:34,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1433928450] [2024-09-12 18:56:34,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:56:34,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:56:34,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:56:34,084 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:56:34,085 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-09-12 18:56:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:56:34,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 18:56:34,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:56:35,294 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:56:35,294 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:56:39,996 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-09-12 18:56:39,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:56:39,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926333036] [2024-09-12 18:56:39,996 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:56:39,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433928450] [2024-09-12 18:56:39,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433928450] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:56:39,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:56:39,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-09-12 18:56:39,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279900559] [2024-09-12 18:56:39,999 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:56:39,999 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:56:39,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:56:39,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:56:39,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:56:40,000 INFO L87 Difference]: Start difference. First operand 1416 states and 1991 transitions. Second operand has 18 states, 17 states have (on average 12.647058823529411) internal successors, (215), 18 states have internal predecessors, (215), 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 18:57:03,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:57:03,270 INFO L93 Difference]: Finished difference Result 1443 states and 2019 transitions. [2024-09-12 18:57:03,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 18:57:03,271 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 12.647058823529411) internal successors, (215), 18 states have internal predecessors, (215), 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 179 [2024-09-12 18:57:03,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:57:03,274 INFO L225 Difference]: With dead ends: 1443 [2024-09-12 18:57:03,277 INFO L226 Difference]: Without dead ends: 1441 [2024-09-12 18:57:03,278 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=351, Invalid=1209, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 18:57:03,278 INFO L434 NwaCegarLoop]: 74 mSDtfsCounter, 788 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 2901 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 3014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 2901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:57:03,278 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 477 Invalid, 3014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 2901 Invalid, 0 Unknown, 0 Unchecked, 20.5s Time] [2024-09-12 18:57:03,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2024-09-12 18:57:04,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1435. [2024-09-12 18:57:04,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1435 states, 1253 states have (on average 1.4261771747805267) internal successors, (1787), 1309 states have internal predecessors, (1787), 115 states have call successors, (115), 13 states have call predecessors, (115), 12 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-09-12 18:57:04,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 2014 transitions. [2024-09-12 18:57:04,231 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 2014 transitions. Word has length 179 [2024-09-12 18:57:04,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:57:04,231 INFO L474 AbstractCegarLoop]: Abstraction has 1435 states and 2014 transitions. [2024-09-12 18:57:04,231 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 12.647058823529411) internal successors, (215), 18 states have internal predecessors, (215), 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 18:57:04,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:04,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 2014 transitions. [2024-09-12 18:57:04,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-09-12 18:57:04,232 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:57:04,232 INFO L216 NwaCegarLoop]: trace histogram [9, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:57:04,245 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2024-09-12 18:57:04,436 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,67 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:04,436 INFO L399 AbstractCegarLoop]: === Iteration 73 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2024-09-12 18:57:04,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:57:04,437 INFO L85 PathProgramCache]: Analyzing trace with hash -895775157, now seen corresponding path program 1 times [2024-09-12 18:57:04,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:57:04,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82371602] [2024-09-12 18:57:04,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:04,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:57:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:57:04,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [772551762] [2024-09-12 18:57:04,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:57:04,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:57:04,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:57:04,449 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:57:04,450 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-09-12 18:57:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:57:04,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-09-12 18:57:04,518 INFO L285 TraceCheckSpWp]: Computing forward predicates...