/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/recursified_nla-digbench/recursified_geo2-ll.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 23:03:51,615 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 23:03:51,679 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 23:03:51,682 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 23:03:51,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 23:03:51,703 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 23:03:51,703 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 23:03:51,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 23:03:51,704 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 23:03:51,707 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 23:03:51,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 23:03:51,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 23:03:51,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 23:03:51,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 23:03:51,708 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 23:03:51,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 23:03:51,709 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 23:03:51,709 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 23:03:51,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 23:03:51,710 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 23:03:51,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 23:03:51,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 23:03:51,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 23:03:51,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 23:03:51,711 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 23:03:51,711 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 23:03:51,711 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 23:03:51,711 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 23:03:51,711 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 23:03:51,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 23:03:51,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 23:03:51,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 23:03:51,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:03:51,713 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 23:03:51,713 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 23:03:51,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 23:03:51,713 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 23:03:51,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 23:03:51,713 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 23:03:51,713 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 23:03:51,713 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 23:03:51,713 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 23:03:51,713 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 23:03:51,714 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/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 23:03:51,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 23:03:51,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 23:03:51,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 23:03:51,893 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 23:03:51,893 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 23:03:51,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursified_nla-digbench/recursified_geo2-ll.c [2023-12-15 23:03:52,831 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 23:03:52,998 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 23:03:52,999 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursified_nla-digbench/recursified_geo2-ll.c [2023-12-15 23:03:53,004 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189ba0d85/4deb9c9db3324a939c03b470779c348d/FLAG91cfc2f74 [2023-12-15 23:03:53,016 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189ba0d85/4deb9c9db3324a939c03b470779c348d [2023-12-15 23:03:53,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 23:03:53,019 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 23:03:53,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 23:03:53,021 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 23:03:53,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 23:03:53,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:03:53" (1/1) ... [2023-12-15 23:03:53,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@790461b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:53, skipping insertion in model container [2023-12-15 23:03:53,026 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:03:53" (1/1) ... [2023-12-15 23:03:53,045 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 23:03:53,146 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursified_nla-digbench/recursified_geo2-ll.c[1055,1068] [2023-12-15 23:03:53,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:03:53,161 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 23:03:53,170 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursified_nla-digbench/recursified_geo2-ll.c[1055,1068] [2023-12-15 23:03:53,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:03:53,184 INFO L206 MainTranslator]: Completed translation [2023-12-15 23:03:53,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:53 WrapperNode [2023-12-15 23:03:53,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 23:03:53,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 23:03:53,186 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 23:03:53,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 23:03:53,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:53" (1/1) ... [2023-12-15 23:03:53,195 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:53" (1/1) ... [2023-12-15 23:03:53,205 INFO L138 Inliner]: procedures = 16, calls = 51, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2023-12-15 23:03:53,206 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 23:03:53,206 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 23:03:53,206 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 23:03:53,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 23:03:53,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:53" (1/1) ... [2023-12-15 23:03:53,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:53" (1/1) ... [2023-12-15 23:03:53,214 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:53" (1/1) ... [2023-12-15 23:03:53,223 INFO L175 MemorySlicer]: Split 27 memory accesses to 6 slices as follows [2, 4, 7, 5, 7, 2]. 26 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 8 writes are split as follows [0, 2, 2, 2, 1, 1]. [2023-12-15 23:03:53,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:53" (1/1) ... [2023-12-15 23:03:53,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:53" (1/1) ... [2023-12-15 23:03:53,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:53" (1/1) ... [2023-12-15 23:03:53,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:53" (1/1) ... [2023-12-15 23:03:53,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:53" (1/1) ... [2023-12-15 23:03:53,229 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:53" (1/1) ... [2023-12-15 23:03:53,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 23:03:53,231 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 23:03:53,231 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 23:03:53,231 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 23:03:53,232 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:53" (1/1) ... [2023-12-15 23:03:53,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:03:53,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:03:53,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 23:03:53,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 23:03:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 23:03:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 23:03:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 23:03:53,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 23:03:53,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 23:03:53,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-15 23:03:53,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-15 23:03:53,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-15 23:03:53,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-15 23:03:53,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-15 23:03:53,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-15 23:03:53,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-15 23:03:53,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-15 23:03:53,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-15 23:03:53,299 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_38_0 [2023-12-15 23:03:53,299 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_38_0 [2023-12-15 23:03:53,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 23:03:53,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 23:03:53,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-15 23:03:53,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-15 23:03:53,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-15 23:03:53,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-15 23:03:53,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-15 23:03:53,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-15 23:03:53,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-15 23:03:53,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-15 23:03:53,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-15 23:03:53,388 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 23:03:53,391 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 23:03:53,511 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 23:03:53,536 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 23:03:53,537 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 23:03:53,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:03:53 BoogieIcfgContainer [2023-12-15 23:03:53,537 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 23:03:53,538 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 23:03:53,539 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 23:03:53,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 23:03:53,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:03:53" (1/3) ... [2023-12-15 23:03:53,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8039081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:03:53, skipping insertion in model container [2023-12-15 23:03:53,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:53" (2/3) ... [2023-12-15 23:03:53,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8039081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:03:53, skipping insertion in model container [2023-12-15 23:03:53,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:03:53" (3/3) ... [2023-12-15 23:03:53,542 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo2-ll.c [2023-12-15 23:03:53,556 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 23:03:53,557 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 23:03:53,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 23:03:53,595 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@7ca75e59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 23:03:53,595 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 23:03:53,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-15 23:03:53,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-15 23:03:53,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:03:53,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:03:53,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:03:53,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:03:53,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1288934217, now seen corresponding path program 1 times [2023-12-15 23:03:53,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:03:53,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331236316] [2023-12-15 23:03:53,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:03:53,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:03:53,697 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 23:03:53,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [189971497] [2023-12-15 23:03:53,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:03:53,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:03:53,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:03:53,703 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 23:03:53,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 23:03:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:03:53,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-15 23:03:53,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:03:53,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-15 23:03:53,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-15 23:03:54,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-12-15 23:03:54,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:03:54,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 23:03:54,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:03:54,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331236316] [2023-12-15 23:03:54,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 23:03:54,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189971497] [2023-12-15 23:03:54,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189971497] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:03:54,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:03:54,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:03:54,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788240216] [2023-12-15 23:03:54,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:03:54,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:03:54,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:03:54,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:03:54,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:03:54,089 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:03:54,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:03:54,290 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2023-12-15 23:03:54,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 23:03:54,292 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-15 23:03:54,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:03:54,296 INFO L225 Difference]: With dead ends: 52 [2023-12-15 23:03:54,296 INFO L226 Difference]: Without dead ends: 31 [2023-12-15 23:03:54,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:03:54,304 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 15 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:03:54,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 72 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:03:54,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-12-15 23:03:54,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2023-12-15 23:03:54,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-15 23:03:54,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-12-15 23:03:54,331 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 8 [2023-12-15 23:03:54,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:03:54,331 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-12-15 23:03:54,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:03:54,332 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-12-15 23:03:54,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-15 23:03:54,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:03:54,333 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:03:54,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 23:03:54,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-15 23:03:54,538 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:03:54,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:03:54,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1531368910, now seen corresponding path program 1 times [2023-12-15 23:03:54,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:03:54,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483686657] [2023-12-15 23:03:54,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:03:54,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:03:54,579 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 23:03:54,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928709108] [2023-12-15 23:03:54,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:03:54,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:03:54,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:03:54,593 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 23:03:54,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 23:03:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:03:55,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 117 conjunts are in the unsatisfiable core [2023-12-15 23:03:55,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:03:55,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-15 23:03:55,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-15 23:03:55,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-15 23:03:55,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-12-15 23:03:55,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-12-15 23:03:55,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-12-15 23:03:55,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-15 23:03:55,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-12-15 23:03:55,848 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:03:55,849 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 23:04:18,697 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int#3| c_func_to_recursive_line_30_to_38_0_~y.base) c_func_to_recursive_line_30_to_38_0_~y.offset)) (.cse1 (select (select |c_#memory_int#4| c_func_to_recursive_line_30_to_38_0_~z.base) c_func_to_recursive_line_30_to_38_0_~z.offset)) (.cse2 (select (select |c_#memory_int#2| c_func_to_recursive_line_30_to_38_0_~x.base) c_func_to_recursive_line_30_to_38_0_~x.offset))) (or (not (= 0 (mod (+ (* 18446744073709551615 .cse0 .cse1) (* .cse1 .cse2) (* 18446744073709551615 .cse2) 1) 18446744073709551616))) (= (mod (+ (* 18446744073709551615 .cse1 .cse2) .cse1 (* 18446744073709551615 .cse0 .cse1 .cse1) (* .cse1 .cse1 .cse2)) 18446744073709551616) 0))) is different from true [2023-12-15 23:04:30,830 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int#4| |c_func_to_recursive_line_30_to_38_0_#in~z.base|) |c_func_to_recursive_line_30_to_38_0_#in~z.offset|)) (.cse2 (select (select |c_#memory_int#3| |c_func_to_recursive_line_30_to_38_0_#in~y.base|) |c_func_to_recursive_line_30_to_38_0_#in~y.offset|)) (.cse1 (select (select |c_#memory_int#2| |c_func_to_recursive_line_30_to_38_0_#in~x.base|) |c_func_to_recursive_line_30_to_38_0_#in~x.offset|))) (or (= (mod (+ (* .cse0 .cse0 .cse1) .cse0 (* 18446744073709551615 .cse0 .cse0 .cse2) (* 18446744073709551615 .cse0 .cse1)) 18446744073709551616) 0) (not (= (mod (+ (* .cse0 .cse1) (* 18446744073709551615 .cse0 .cse2) (* 18446744073709551615 .cse1) 1) 18446744073709551616) 0)))) is different from true [2023-12-15 23:04:42,897 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_int#3| |c_ULTIMATE.start_main_~#y~0#1.base|) |c_ULTIMATE.start_main_~#y~0#1.offset|)) (.cse0 (select (select |c_#memory_int#2| |c_ULTIMATE.start_main_~#x~0#1.base|) |c_ULTIMATE.start_main_~#x~0#1.offset|)) (.cse1 (select (select |c_#memory_int#4| |c_ULTIMATE.start_main_~#z~0#1.base|) |c_ULTIMATE.start_main_~#z~0#1.offset|))) (or (not (= (mod (+ (* .cse0 .cse1) (* .cse0 18446744073709551615) (* 18446744073709551615 .cse2 .cse1) 1) 18446744073709551616) 0)) (= (mod (+ (* .cse0 18446744073709551615 .cse1) (* 18446744073709551615 .cse2 .cse1 .cse1) (* .cse0 .cse1 .cse1) .cse1) 18446744073709551616) 0))) is different from true [2023-12-15 23:04:42,898 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-12-15 23:04:42,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:04:42,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483686657] [2023-12-15 23:04:42,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 23:04:42,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928709108] [2023-12-15 23:04:42,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928709108] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 23:04:42,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 23:04:42,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 26 [2023-12-15 23:04:42,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194098976] [2023-12-15 23:04:42,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 23:04:42,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-15 23:04:42,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:04:42,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-15 23:04:42,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=432, Unknown=5, NotChecked=132, Total=650 [2023-12-15 23:04:42,901 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 26 states, 20 states have (on average 1.25) internal successors, (25), 18 states have internal predecessors, (25), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-15 23:04:54,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-15 23:04:58,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-15 23:05:02,134 WARN L854 $PredicateComparison]: unable to prove that (and (= (mod (let ((.cse0 (select (select |c_#memory_int#4| |c_func_to_recursive_line_30_to_38_0_#in~z.base|) |c_func_to_recursive_line_30_to_38_0_#in~z.offset|)) (.cse1 (select (select |c_#memory_int#2| |c_func_to_recursive_line_30_to_38_0_#in~x.base|) |c_func_to_recursive_line_30_to_38_0_#in~x.offset|))) (+ (* .cse0 .cse1) (* 18446744073709551615 .cse0 (select (select |c_#memory_int#3| |c_func_to_recursive_line_30_to_38_0_#in~y.base|) |c_func_to_recursive_line_30_to_38_0_#in~y.offset|)) (* 18446744073709551615 .cse1) 1)) 18446744073709551616) 0) (= 0 (mod (let ((.cse2 (select (select |c_#memory_int#4| c_func_to_recursive_line_30_to_38_0_~z.base) c_func_to_recursive_line_30_to_38_0_~z.offset)) (.cse3 (select (select |c_#memory_int#2| c_func_to_recursive_line_30_to_38_0_~x.base) c_func_to_recursive_line_30_to_38_0_~x.offset))) (+ (* 18446744073709551615 (select (select |c_#memory_int#3| c_func_to_recursive_line_30_to_38_0_~y.base) c_func_to_recursive_line_30_to_38_0_~y.offset) .cse2) (* .cse2 .cse3) (* 18446744073709551615 .cse3) 1)) 18446744073709551616))) is different from false [2023-12-15 23:05:04,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-15 23:05:08,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-15 23:05:12,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-12-15 23:05:12,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:05:12,442 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2023-12-15 23:05:12,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-15 23:05:12,448 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 20 states have (on average 1.25) internal successors, (25), 18 states have internal predecessors, (25), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2023-12-15 23:05:12,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:05:12,450 INFO L225 Difference]: With dead ends: 58 [2023-12-15 23:05:12,450 INFO L226 Difference]: Without dead ends: 54 [2023-12-15 23:05:12,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 31.9s TimeCoverageRelationStatistics Valid=182, Invalid=884, Unknown=6, NotChecked=260, Total=1332 [2023-12-15 23:05:12,451 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 48 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 15 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 204 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:05:12,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 136 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 290 Invalid, 4 Unknown, 204 Unchecked, 20.2s Time] [2023-12-15 23:05:12,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-12-15 23:05:12,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2023-12-15 23:05:12,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 33 states have (on average 1.121212121212121) internal successors, (37), 36 states have internal predecessors, (37), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (11), 7 states have call predecessors, (11), 8 states have call successors, (11) [2023-12-15 23:05:12,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2023-12-15 23:05:12,462 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 18 [2023-12-15 23:05:12,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:05:12,463 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2023-12-15 23:05:12,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 20 states have (on average 1.25) internal successors, (25), 18 states have internal predecessors, (25), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-15 23:05:12,463 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2023-12-15 23:05:12,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-15 23:05:12,464 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:05:12,464 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:05:12,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 23:05:12,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-15 23:05:12,665 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:05:12,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:05:12,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1152056984, now seen corresponding path program 1 times [2023-12-15 23:05:12,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:05:12,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079995270] [2023-12-15 23:05:12,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:05:12,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:05:12,686 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 23:05:12,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [729027910] [2023-12-15 23:05:12,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:05:12,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:05:12,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:05:12,689 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 23:05:12,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 23:05:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:05:12,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-15 23:05:12,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:05:12,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-15 23:05:12,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-15 23:05:12,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-15 23:05:12,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-12-15 23:05:12,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:05:12,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 23:05:12,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:05:12,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079995270] [2023-12-15 23:05:12,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 23:05:12,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729027910] [2023-12-15 23:05:12,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729027910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:05:12,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:05:12,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 23:05:12,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364966536] [2023-12-15 23:05:12,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:05:12,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:05:12,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:05:12,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:05:12,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:05:12,894 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-15 23:05:12,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:05:12,999 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2023-12-15 23:05:13,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 23:05:13,000 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2023-12-15 23:05:13,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:05:13,001 INFO L225 Difference]: With dead ends: 55 [2023-12-15 23:05:13,001 INFO L226 Difference]: Without dead ends: 47 [2023-12-15 23:05:13,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:05:13,002 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 11 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:05:13,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 37 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:05:13,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-12-15 23:05:13,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-12-15 23:05:13,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.1) internal successors, (33), 33 states have internal predecessors, (33), 9 states have call successors, (9), 7 states have call predecessors, (9), 7 states have return successors, (12), 6 states have call predecessors, (12), 8 states have call successors, (12) [2023-12-15 23:05:13,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2023-12-15 23:05:13,011 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 18 [2023-12-15 23:05:13,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:05:13,011 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2023-12-15 23:05:13,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-15 23:05:13,011 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2023-12-15 23:05:13,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-15 23:05:13,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:05:13,012 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:05:13,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 23:05:13,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:05:13,217 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:05:13,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:05:13,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1747688822, now seen corresponding path program 1 times [2023-12-15 23:05:13,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:05:13,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101585034] [2023-12-15 23:05:13,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:05:13,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:05:13,269 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 23:05:13,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808460814] [2023-12-15 23:05:13,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:05:13,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:05:13,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:05:13,271 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 23:05:13,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process Received shutdown request... [2023-12-15 23:05:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:05:13,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 100 conjunts are in the unsatisfiable core [2023-12-15 23:05:13,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 23:05:13,416 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 23:05:13,423 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 23:05:13,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 23:05:13,424 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 23:05:13,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 23:05:13,617 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 31 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ATOM-1 context. [2023-12-15 23:05:13,621 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-15 23:05:13,622 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 23:05:13,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:05:13 BoogieIcfgContainer [2023-12-15 23:05:13,623 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 23:05:13,624 INFO L158 Benchmark]: Toolchain (without parser) took 80604.86ms. Allocated memory is still 316.7MB. Free memory was 262.2MB in the beginning and 269.5MB in the end (delta: -7.3MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:05:13,624 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 199.2MB. Free memory is still 151.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:05:13,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.00ms. Allocated memory is still 316.7MB. Free memory was 261.7MB in the beginning and 250.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-15 23:05:13,624 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.01ms. Allocated memory is still 316.7MB. Free memory was 250.1MB in the beginning and 248.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 23:05:13,624 INFO L158 Benchmark]: Boogie Preprocessor took 24.72ms. Allocated memory is still 316.7MB. Free memory was 248.6MB in the beginning and 246.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 23:05:13,625 INFO L158 Benchmark]: RCFGBuilder took 305.93ms. Allocated memory is still 316.7MB. Free memory was 246.5MB in the beginning and 230.2MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-15 23:05:13,625 INFO L158 Benchmark]: TraceAbstraction took 80084.87ms. Allocated memory is still 316.7MB. Free memory was 229.7MB in the beginning and 269.5MB in the end (delta: -39.8MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:05:13,626 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 199.2MB. Free memory is still 151.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 164.00ms. Allocated memory is still 316.7MB. Free memory was 261.7MB in the beginning and 250.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.01ms. Allocated memory is still 316.7MB. Free memory was 250.1MB in the beginning and 248.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.72ms. Allocated memory is still 316.7MB. Free memory was 248.6MB in the beginning and 246.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 305.93ms. Allocated memory is still 316.7MB. Free memory was 246.5MB in the beginning and 230.2MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 80084.87ms. Allocated memory is still 316.7MB. Free memory was 229.7MB in the beginning and 269.5MB in the end (delta: -39.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 41]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 41). Cancelled while NwaCegarLoop was analyzing trace of length 31 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 80.0s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 29.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 20.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 245 SdHoareTripleChecker+Invalid, 20.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 204 IncrementalHoareTripleChecker+Unchecked, 211 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 457 IncrementalHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 34 mSDtfsCounter, 457 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 32.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=2, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 47.8s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 58 ConstructedInterpolants, 7 QuantifiedInterpolants, 1356 SizeOfPredicates, 68 NumberOfNonLiveVariables, 594 ConjunctsInSsa, 201 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown