./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound20.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 --witnessprinter.generate.graphml.witnesses false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f1d7dc9d 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/geo3-ll_unwindbound20.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 fdadba64290bb92644e7e488fd7f0ff193dc3cda62b54e30ca2f0fabf2570055 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 12:43:24,664 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 12:43:24,722 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-20 12:43:24,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 12:43:24,727 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 12:43:24,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 12:43:24,740 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 12:43:24,740 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 12:43:24,741 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 12:43:24,741 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 12:43:24,741 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 12:43:24,741 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 12:43:24,742 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 12:43:24,742 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 12:43:24,742 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 12:43:24,743 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 12:43:24,743 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 12:43:24,743 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 12:43:24,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 12:43:24,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 12:43:24,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 12:43:24,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 12:43:24,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 12:43:24,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 12:43:24,747 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 12:43:24,747 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 12:43:24,747 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 12:43:24,747 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 12:43:24,747 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 12:43:24,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 12:43:24,748 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 12:43:24,748 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 12:43:24,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 12:43:24,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 12:43:24,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 12:43:24,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 12:43:24,749 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 12:43:24,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 12:43:24,749 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 12:43:24,750 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 12:43:24,750 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 12:43:24,750 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 12:43:24,751 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdadba64290bb92644e7e488fd7f0ff193dc3cda62b54e30ca2f0fabf2570055 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-20 12:43:24,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 12:43:24,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 12:43:24,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 12:43:24,955 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 12:43:24,955 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 12:43:24,956 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound20.c [2024-09-20 12:43:26,162 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 12:43:26,317 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 12:43:26,317 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound20.c [2024-09-20 12:43:26,324 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/de875d7dc/547dc95eef8c45d8b7ee63a92d81078a/FLAG188dbd0d4 [2024-09-20 12:43:26,333 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/de875d7dc/547dc95eef8c45d8b7ee63a92d81078a [2024-09-20 12:43:26,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 12:43:26,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-20 12:43:26,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 12:43:26,337 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 12:43:26,340 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 12:43:26,341 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:43:26" (1/1) ... [2024-09-20 12:43:26,342 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e062ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:43:26, skipping insertion in model container [2024-09-20 12:43:26,342 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:43:26" (1/1) ... [2024-09-20 12:43:26,355 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 12:43:26,473 WARN L248 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/geo3-ll_unwindbound20.c[525,538] [2024-09-20 12:43:26,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 12:43:26,498 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 12:43:26,506 WARN L248 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/geo3-ll_unwindbound20.c[525,538] [2024-09-20 12:43:26,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 12:43:26,521 INFO L204 MainTranslator]: Completed translation [2024-09-20 12:43:26,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:43:26 WrapperNode [2024-09-20 12:43:26,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 12:43:26,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-20 12:43:26,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-20 12:43:26,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-20 12:43:26,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:43:26" (1/1) ... [2024-09-20 12:43:26,533 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:43:26" (1/1) ... [2024-09-20 12:43:26,538 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-20 12:43:26,539 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-20 12:43:26,540 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 12:43:26,540 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 12:43:26,540 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 12:43:26,547 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:43:26" (1/1) ... [2024-09-20 12:43:26,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:43:26" (1/1) ... [2024-09-20 12:43:26,548 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:43:26" (1/1) ... [2024-09-20 12:43:26,560 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]. [2024-09-20 12:43:26,560 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:43:26" (1/1) ... [2024-09-20 12:43:26,561 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:43:26" (1/1) ... [2024-09-20 12:43:26,563 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:43:26" (1/1) ... [2024-09-20 12:43:26,566 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:43:26" (1/1) ... [2024-09-20 12:43:26,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:43:26" (1/1) ... [2024-09-20 12:43:26,567 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:43:26" (1/1) ... [2024-09-20 12:43:26,575 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 12:43:26,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 12:43:26,576 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 12:43:26,576 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 12:43:26,577 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:43:26" (1/1) ... [2024-09-20 12:43:26,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 12:43:26,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 12:43:26,611 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) [2024-09-20 12:43:26,614 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 [2024-09-20 12:43:26,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 12:43:26,645 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 12:43:26,645 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 12:43:26,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 12:43:26,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 12:43:26,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 12:43:26,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 12:43:26,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 12:43:26,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 12:43:26,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 12:43:26,690 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 12:43:26,692 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 12:43:26,791 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-09-20 12:43:26,791 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 12:43:26,806 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 12:43:26,807 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 12:43:26,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:43:26 BoogieIcfgContainer [2024-09-20 12:43:26,807 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 12:43:26,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-20 12:43:26,811 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-20 12:43:26,813 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-20 12:43:26,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 12:43:26" (1/3) ... [2024-09-20 12:43:26,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5429a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:43:26, skipping insertion in model container [2024-09-20 12:43:26,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:43:26" (2/3) ... [2024-09-20 12:43:26,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5429a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:43:26, skipping insertion in model container [2024-09-20 12:43:26,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:43:26" (3/3) ... [2024-09-20 12:43:26,817 INFO L112 eAbstractionObserver]: Analyzing ICFG geo3-ll_unwindbound20.c [2024-09-20 12:43:26,829 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-20 12:43:26,829 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-20 12:43:26,870 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-20 12:43:26,875 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;@2bb63591, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-20 12:43:26,875 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-20 12:43:26,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-20 12:43:26,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-20 12:43:26,886 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 12:43:26,886 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 12:43:26,887 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 12:43:26,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:43:26,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1030420147, now seen corresponding path program 1 times [2024-09-20 12:43:26,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 12:43:26,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804405058] [2024-09-20 12:43:26,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 12:43:26,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 12:43:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:43:27,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 12:43:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:43:27,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 12:43:27,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 12:43:27,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804405058] [2024-09-20 12:43:27,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804405058] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 12:43:27,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 12:43:27,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-20 12:43:27,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172539414] [2024-09-20 12:43:27,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 12:43:27,064 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-20 12:43:27,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 12:43:27,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-20 12:43:27,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-20 12:43:27,080 INFO L87 Difference]: Start difference. First operand has 20 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-20 12:43:27,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 12:43:27,130 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2024-09-20 12:43:27,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-20 12:43:27,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-09-20 12:43:27,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 12:43:27,137 INFO L225 Difference]: With dead ends: 36 [2024-09-20 12:43:27,137 INFO L226 Difference]: Without dead ends: 17 [2024-09-20 12:43:27,139 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-20 12:43:27,141 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-20 12:43:27,142 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 21 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-20 12:43:27,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-09-20 12:43:27,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2024-09-20 12:43:27,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-20 12:43:27,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2024-09-20 12:43:27,205 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 10 [2024-09-20 12:43:27,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 12:43:27,206 INFO L474 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2024-09-20 12:43:27,211 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-20 12:43:27,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:43:27,212 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-09-20 12:43:27,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-20 12:43:27,212 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 12:43:27,212 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 12:43:27,213 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-20 12:43:27,213 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 12:43:27,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:43:27,213 INFO L85 PathProgramCache]: Analyzing trace with hash 2015485711, now seen corresponding path program 1 times [2024-09-20 12:43:27,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 12:43:27,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125334213] [2024-09-20 12:43:27,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 12:43:27,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 12:43:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:43:27,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 12:43:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:43:27,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 12:43:27,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 12:43:27,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125334213] [2024-09-20 12:43:27,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125334213] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 12:43:27,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 12:43:27,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-20 12:43:27,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240127569] [2024-09-20 12:43:27,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 12:43:27,377 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-20 12:43:27,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 12:43:27,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-20 12:43:27,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-20 12:43:27,378 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-20 12:43:27,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 12:43:27,435 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2024-09-20 12:43:27,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-20 12:43:27,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-09-20 12:43:27,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 12:43:27,437 INFO L225 Difference]: With dead ends: 25 [2024-09-20 12:43:27,437 INFO L226 Difference]: Without dead ends: 18 [2024-09-20 12:43:27,437 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-20 12:43:27,438 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-20 12:43:27,438 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 27 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-20 12:43:27,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-09-20 12:43:27,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-09-20 12:43:27,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-20 12:43:27,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2024-09-20 12:43:27,443 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 11 [2024-09-20 12:43:27,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 12:43:27,444 INFO L474 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2024-09-20 12:43:27,444 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-20 12:43:27,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:43:27,444 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-09-20 12:43:27,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-20 12:43:27,445 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 12:43:27,445 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 12:43:27,445 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-20 12:43:27,445 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 12:43:27,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:43:27,445 INFO L85 PathProgramCache]: Analyzing trace with hash 2017273171, now seen corresponding path program 1 times [2024-09-20 12:43:27,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 12:43:27,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328997554] [2024-09-20 12:43:27,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 12:43:27,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 12:43:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-20 12:43:27,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [733141654] [2024-09-20 12:43:27,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 12:43:27,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 12:43:27,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 12:43:27,460 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) [2024-09-20 12:43:27,462 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-20 12:43:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:43:27,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-20 12:43:27,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 12:43:27,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 12:43:27,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-20 12:43:27,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 12:43:27,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328997554] [2024-09-20 12:43:27,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-20 12:43:27,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733141654] [2024-09-20 12:43:27,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733141654] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 12:43:27,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 12:43:27,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-20 12:43:27,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658964615] [2024-09-20 12:43:27,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 12:43:27,588 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-20 12:43:27,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 12:43:27,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-20 12:43:27,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-20 12:43:27,589 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-20 12:43:27,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 12:43:27,648 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2024-09-20 12:43:27,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-20 12:43:27,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-09-20 12:43:27,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 12:43:27,649 INFO L225 Difference]: With dead ends: 27 [2024-09-20 12:43:27,649 INFO L226 Difference]: Without dead ends: 24 [2024-09-20 12:43:27,649 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-20 12:43:27,650 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-20 12:43:27,650 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 50 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-20 12:43:27,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-09-20 12:43:27,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-09-20 12:43:27,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-20 12:43:27,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2024-09-20 12:43:27,657 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 11 [2024-09-20 12:43:27,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 12:43:27,657 INFO L474 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2024-09-20 12:43:27,658 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-20 12:43:27,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:43:27,658 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2024-09-20 12:43:27,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-20 12:43:27,661 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 12:43:27,661 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 12:43:27,674 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-20 12:43:27,862 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 12:43:27,862 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 12:43:27,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:43:27,863 INFO L85 PathProgramCache]: Analyzing trace with hash -810508528, now seen corresponding path program 1 times [2024-09-20 12:43:27,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 12:43:27,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283165554] [2024-09-20 12:43:27,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 12:43:27,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 12:43:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:43:27,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 12:43:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:43:27,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 12:43:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:43:27,994 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 12:43:27,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 12:43:27,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283165554] [2024-09-20 12:43:27,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283165554] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 12:43:27,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172224923] [2024-09-20 12:43:27,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 12:43:27,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 12:43:27,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 12:43:27,997 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) [2024-09-20 12:43:27,997 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-20 12:43:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:43:28,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-20 12:43:28,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 12:43:28,071 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 12:43:28,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 12:43:28,126 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 12:43:28,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172224923] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 12:43:28,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 12:43:28,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2024-09-20 12:43:28,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481431270] [2024-09-20 12:43:28,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 12:43:28,127 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-20 12:43:28,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 12:43:28,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-20 12:43:28,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-09-20 12:43:28,128 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 7 states have call successors, (9), 7 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-20 12:43:28,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 12:43:28,268 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2024-09-20 12:43:28,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-20 12:43:28,269 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 7 states have call successors, (9), 7 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 19 [2024-09-20 12:43:28,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 12:43:28,270 INFO L225 Difference]: With dead ends: 55 [2024-09-20 12:43:28,270 INFO L226 Difference]: Without dead ends: 48 [2024-09-20 12:43:28,270 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-09-20 12:43:28,271 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 37 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-20 12:43:28,271 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 43 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-20 12:43:28,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-09-20 12:43:28,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2024-09-20 12:43:28,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 32 states have internal predecessors, (36), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-20 12:43:28,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2024-09-20 12:43:28,289 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 19 [2024-09-20 12:43:28,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 12:43:28,289 INFO L474 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2024-09-20 12:43:28,290 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 10 states have internal predecessors, (27), 7 states have call successors, (9), 7 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-20 12:43:28,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:43:28,291 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2024-09-20 12:43:28,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-20 12:43:28,292 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 12:43:28,292 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 12:43:28,305 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-20 12:43:28,496 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 12:43:28,497 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 12:43:28,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:43:28,497 INFO L85 PathProgramCache]: Analyzing trace with hash -808721068, now seen corresponding path program 1 times [2024-09-20 12:43:28,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 12:43:28,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780700625] [2024-09-20 12:43:28,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 12:43:28,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 12:43:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-20 12:43:28,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [692523149] [2024-09-20 12:43:28,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 12:43:28,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 12:43:28,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 12:43:28,522 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) [2024-09-20 12:43:28,524 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-20 12:43:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:43:28,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-20 12:43:28,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 12:43:28,748 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 12:43:28,750 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 12:43:45,398 WARN L876 $PredicateComparison]: unable to prove that (or (= (mod (+ (* c_main_~x~0 c_main_~z~0 c_main_~z~0) (* c_main_~a~0 c_main_~z~0) (* 18446744073709551615 c_main_~x~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0 c_main_~z~0)) 18446744073709551616) 0) (not (= (mod (+ (* c_main_~x~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0) (* 18446744073709551615 c_main_~x~0) c_main_~a~0) 18446744073709551616) 0))) is different from true [2024-09-20 12:44:01,914 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2024-09-20 12:44:01,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 12:44:01,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780700625] [2024-09-20 12:44:01,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-20 12:44:01,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692523149] [2024-09-20 12:44:01,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692523149] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 12:44:01,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-20 12:44:01,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 12 [2024-09-20 12:44:01,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618625066] [2024-09-20 12:44:01,915 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-20 12:44:01,915 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-20 12:44:01,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 12:44:01,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-20 12:44:01,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=83, Unknown=2, NotChecked=18, Total=132 [2024-09-20 12:44:01,916 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 10 states have internal predecessors, (21), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-20 12:44:10,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-20 12:44:14,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-20 12:44:18,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-20 12:44:22,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-20 12:44:26,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-20 12:44:30,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-20 12:44:34,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-20 12:44:38,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-20 12:44:38,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 12:44:38,475 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2024-09-20 12:44:38,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-20 12:44:38,479 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 10 states have internal predecessors, (21), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 19 [2024-09-20 12:44:38,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 12:44:38,480 INFO L225 Difference]: With dead ends: 52 [2024-09-20 12:44:38,480 INFO L226 Difference]: Without dead ends: 47 [2024-09-20 12:44:38,481 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=42, Invalid=116, Unknown=2, NotChecked=22, Total=182 [2024-09-20 12:44:38,482 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 11 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 9 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2024-09-20 12:44:38,482 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 104 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 67 Invalid, 8 Unknown, 42 Unchecked, 32.4s Time] [2024-09-20 12:44:38,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-09-20 12:44:38,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-09-20 12:44:38,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 32 states have (on average 1.0625) internal successors, (34), 34 states have internal predecessors, (34), 8 states have call successors, (8), 7 states have call predecessors, (8), 6 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-20 12:44:38,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2024-09-20 12:44:38,496 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 19 [2024-09-20 12:44:38,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 12:44:38,496 INFO L474 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2024-09-20 12:44:38,496 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 10 states have internal predecessors, (21), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-20 12:44:38,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:44:38,496 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2024-09-20 12:44:38,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-20 12:44:38,497 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 12:44:38,497 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 12:44:38,504 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-20 12:44:38,697 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 12:44:38,698 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 12:44:38,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:44:38,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1627686637, now seen corresponding path program 2 times [2024-09-20 12:44:38,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 12:44:38,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129857535] [2024-09-20 12:44:38,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 12:44:38,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 12:44:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:44:38,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 12:44:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:44:38,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 12:44:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:44:38,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-09-20 12:44:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:44:38,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-09-20 12:44:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:44:38,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-20 12:44:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:44:38,931 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 32 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-20 12:44:38,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 12:44:38,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129857535] [2024-09-20 12:44:38,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129857535] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 12:44:38,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275238285] [2024-09-20 12:44:38,932 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-20 12:44:38,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 12:44:38,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 12:44:38,934 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) [2024-09-20 12:44:38,934 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-20 12:44:38,977 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-20 12:44:38,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 12:44:38,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-20 12:44:38,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 12:44:39,044 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 12:44:39,044 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 12:44:39,165 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 32 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-20 12:44:39,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275238285] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 12:44:39,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 12:44:39,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 17 [2024-09-20 12:44:39,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992971432] [2024-09-20 12:44:39,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 12:44:39,166 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-20 12:44:39,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 12:44:39,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-20 12:44:39,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2024-09-20 12:44:39,167 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 16 states have internal predecessors, (54), 13 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (15), 11 states have call predecessors, (15), 9 states have call successors, (15) [2024-09-20 12:44:39,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 12:44:39,549 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2024-09-20 12:44:39,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-09-20 12:44:39,550 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 16 states have internal predecessors, (54), 13 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (15), 11 states have call predecessors, (15), 9 states have call successors, (15) Word has length 43 [2024-09-20 12:44:39,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 12:44:39,551 INFO L225 Difference]: With dead ends: 107 [2024-09-20 12:44:39,551 INFO L226 Difference]: Without dead ends: 100 [2024-09-20 12:44:39,551 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=861, Unknown=0, NotChecked=0, Total=1190 [2024-09-20 12:44:39,552 INFO L434 NwaCegarLoop]: 8 mSDtfsCounter, 95 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-20 12:44:39,552 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 37 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-20 12:44:39,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-09-20 12:44:39,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2024-09-20 12:44:39,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 65 states have (on average 1.1076923076923078) internal successors, (72), 66 states have internal predecessors, (72), 13 states have call successors, (13), 12 states have call predecessors, (13), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-20 12:44:39,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2024-09-20 12:44:39,570 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 43 [2024-09-20 12:44:39,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 12:44:39,570 INFO L474 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2024-09-20 12:44:39,570 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 16 states have internal predecessors, (54), 13 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (15), 11 states have call predecessors, (15), 9 states have call successors, (15) [2024-09-20 12:44:39,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:44:39,573 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2024-09-20 12:44:39,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-20 12:44:39,574 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 12:44:39,574 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 12:44:39,588 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-20 12:44:39,778 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 12:44:39,779 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 12:44:39,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:44:39,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1625899177, now seen corresponding path program 2 times [2024-09-20 12:44:39,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 12:44:39,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895476815] [2024-09-20 12:44:39,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 12:44:39,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 12:44:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-20 12:44:39,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [434023608] [2024-09-20 12:44:39,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-20 12:44:39,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 12:44:39,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 12:44:39,818 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) [2024-09-20 12:44:39,819 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-20 12:44:40,005 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-20 12:44:40,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-20 12:44:40,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-09-20 12:44:40,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 12:44:40,828 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 40 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-20 12:44:40,828 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 12:44:57,531 WARN L876 $PredicateComparison]: unable to prove that (or (= (mod (+ (* c_main_~x~0 c_main_~z~0 c_main_~z~0) (* c_main_~a~0 c_main_~z~0) (* 18446744073709551615 c_main_~x~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0 c_main_~z~0)) 18446744073709551616) 0) (not (= (mod (+ (* c_main_~x~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0) (* 18446744073709551615 c_main_~x~0) c_main_~a~0) 18446744073709551616) 0))) is different from true [2024-09-20 12:45:26,740 WARN L876 $PredicateComparison]: unable to prove that (or (= (mod (+ (* c_main_~x~0 c_main_~z~0 c_main_~z~0 c_main_~z~0) (* 18446744073709551615 c_main_~x~0 c_main_~z~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0 c_main_~z~0 c_main_~z~0) (* c_main_~a~0 c_main_~z~0 c_main_~z~0)) 18446744073709551616) 0) (not (= (mod (+ (* c_main_~x~0 c_main_~z~0 c_main_~z~0) (* c_main_~a~0 c_main_~z~0) (* 18446744073709551615 c_main_~x~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0 c_main_~z~0)) 18446744073709551616) 0))) is different from true [2024-09-20 12:45:38,789 WARN L293 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-20 12:45:54,901 WARN L293 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-20 12:45:58,933 WARN L876 $PredicateComparison]: unable to prove that (or (= (mod (+ (* c_main_~x~0 c_main_~z~0 c_main_~z~0 c_main_~z~0) (* 18446744073709551615 c_main_~x~0 c_main_~z~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0 c_main_~z~0 c_main_~z~0) (* c_main_~a~0 c_main_~z~0 c_main_~z~0)) 18446744073709551616) 0) (not (= (mod (+ (* c_main_~x~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0) (* 18446744073709551615 c_main_~x~0) c_main_~a~0) 18446744073709551616) 0)) (not (= (mod (+ (* c_main_~x~0 c_main_~z~0 c_main_~z~0) (* c_main_~a~0 c_main_~z~0) (* 18446744073709551615 c_main_~x~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0 c_main_~z~0)) 18446744073709551616) 0))) is different from true [2024-09-20 12:46:19,002 WARN L293 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-20 12:46:27,011 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-20 12:46:35,020 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-20 12:46:47,148 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-20 12:46:59,182 WARN L293 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-20 12:47:03,199 WARN L876 $PredicateComparison]: unable to prove that (or (not (= |c___VERIFIER_assert_#in~cond| 0)) (forall ((v_main_~x~0_BEFORE_CALL_11 Int) (v_main_~y~0_BEFORE_CALL_11 Int) (v_main_~z~0_BEFORE_CALL_11 Int) (v_z_1 Int) (v_main_~az~0_BEFORE_CALL_11 Int)) (let ((.cse0 (+ v_z_1 (mod (+ (* 18446744073709551615 v_main_~y~0_BEFORE_CALL_11 v_main_~az~0_BEFORE_CALL_11) (* v_main_~z~0_BEFORE_CALL_11 v_main_~x~0_BEFORE_CALL_11) (* 18446744073709551615 v_main_~x~0_BEFORE_CALL_11)) 18446744073709551616)))) (or (= .cse0 0) (= (mod (+ (* v_main_~z~0_BEFORE_CALL_11 v_main_~z~0_BEFORE_CALL_11 v_z_1) (* 18446744073709551615 v_main_~z~0_BEFORE_CALL_11 v_main_~z~0_BEFORE_CALL_11 v_main_~x~0_BEFORE_CALL_11) (* v_main_~z~0_BEFORE_CALL_11 v_main_~z~0_BEFORE_CALL_11 v_main_~z~0_BEFORE_CALL_11 v_main_~x~0_BEFORE_CALL_11) (* 18446744073709551615 v_main_~z~0_BEFORE_CALL_11 v_main_~z~0_BEFORE_CALL_11 v_main_~y~0_BEFORE_CALL_11 v_main_~az~0_BEFORE_CALL_11)) 18446744073709551616) 0) (< v_z_1 0) (not (= (mod (+ (* 18446744073709551615 v_main_~z~0_BEFORE_CALL_11 v_main_~x~0_BEFORE_CALL_11) (* 18446744073709551615 v_main_~z~0_BEFORE_CALL_11 v_main_~y~0_BEFORE_CALL_11 v_main_~az~0_BEFORE_CALL_11) (* v_main_~z~0_BEFORE_CALL_11 v_z_1) (* v_main_~z~0_BEFORE_CALL_11 v_main_~z~0_BEFORE_CALL_11 v_main_~x~0_BEFORE_CALL_11)) 18446744073709551616) 0)) (< 18446744073709551615 v_z_1) (= 18446744073709551616 .cse0))))) is different from true [2024-09-20 12:47:19,249 WARN L293 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-20 12:47:24,763 WARN L293 SmtUtils]: Spent 5.51s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-20 12:47:32,782 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-20 12:47:44,982 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-20 12:47:57,061 WARN L293 SmtUtils]: Spent 12.08s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-20 12:48:13,177 WARN L293 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)