/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-19 22:43:57,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 22:43:57,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 22:43:57,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-19 22:43:58,001 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-03-19 22:43:58,031 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 22:43:58,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 22:43:58,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-19 22:43:58,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-19 22:43:58,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-19 22:43:58,032 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-19 22:43:58,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-19 22:43:58,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-19 22:43:58,033 INFO L138 SettingsManager]: * Use SBE=true [2022-03-19 22:43:58,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 22:43:58,033 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-19 22:43:58,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 22:43:58,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-19 22:43:58,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 22:43:58,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 22:43:58,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 22:43:58,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 22:43:58,034 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-19 22:43:58,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 22:43:58,034 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 22:43:58,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 22:43:58,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 22:43:58,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 22:43:58,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 22:43:58,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 22:43:58,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 22:43:58,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-19 22:43:58,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-19 22:43:58,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-19 22:43:58,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-19 22:43:58,038 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-19 22:43:58,039 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-19 22:43:58,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 22:43:58,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 22:43:58,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 22:43:58,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 22:43:58,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 22:43:58,204 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 22:43:58,207 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 22:43:58,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2022-03-19 22:43:58,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fd876c00/0e4f2b501d99428ca1693bea53087fc0/FLAGab9fad263 [2022-03-19 22:43:58,626 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 22:43:58,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2022-03-19 22:43:58,632 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fd876c00/0e4f2b501d99428ca1693bea53087fc0/FLAGab9fad263 [2022-03-19 22:43:58,646 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fd876c00/0e4f2b501d99428ca1693bea53087fc0 [2022-03-19 22:43:58,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 22:43:58,649 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-19 22:43:58,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 22:43:58,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 22:43:58,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 22:43:58,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 10:43:58" (1/1) ... [2022-03-19 22:43:58,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27725f7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:43:58, skipping insertion in model container [2022-03-19 22:43:58,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 10:43:58" (1/1) ... [2022-03-19 22:43:58,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 22:43:58,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 22:43:58,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c[2265,2278] [2022-03-19 22:43:58,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 22:43:58,810 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 22:43:58,823 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c[2265,2278] [2022-03-19 22:43:58,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 22:43:58,843 INFO L208 MainTranslator]: Completed translation [2022-03-19 22:43:58,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:43:58 WrapperNode [2022-03-19 22:43:58,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 22:43:58,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 22:43:58,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 22:43:58,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 22:43:58,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:43:58" (1/1) ... [2022-03-19 22:43:58,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:43:58" (1/1) ... [2022-03-19 22:43:58,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:43:58" (1/1) ... [2022-03-19 22:43:58,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:43:58" (1/1) ... [2022-03-19 22:43:58,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:43:58" (1/1) ... [2022-03-19 22:43:58,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:43:58" (1/1) ... [2022-03-19 22:43:58,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:43:58" (1/1) ... [2022-03-19 22:43:58,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 22:43:58,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 22:43:58,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 22:43:58,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 22:43:58,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:43:58" (1/1) ... [2022-03-19 22:43:58,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 22:43:58,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 22:43:58,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-19 22:43:58,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-19 22:43:58,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 22:43:58,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 22:43:58,920 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 22:43:58,920 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 22:43:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 22:43:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 22:43:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 22:43:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 22:43:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 22:43:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-19 22:43:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 22:43:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 22:43:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 22:43:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 22:43:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 22:43:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 22:43:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 22:43:59,012 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 22:43:59,013 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 22:44:07,887 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 22:44:07,894 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 22:44:07,894 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-19 22:44:07,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 10:44:07 BoogieIcfgContainer [2022-03-19 22:44:07,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 22:44:07,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 22:44:07,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 22:44:07,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 22:44:07,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 10:43:58" (1/3) ... [2022-03-19 22:44:07,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b320e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 10:44:07, skipping insertion in model container [2022-03-19 22:44:07,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 10:43:58" (2/3) ... [2022-03-19 22:44:07,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b320e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 10:44:07, skipping insertion in model container [2022-03-19 22:44:07,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 10:44:07" (3/3) ... [2022-03-19 22:44:07,908 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2022-03-19 22:44:07,912 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-19 22:44:07,912 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 22:44:07,957 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 22:44:07,970 INFO L340 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=LoopsAndPotentialCycles, 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 [2022-03-19 22:44:07,970 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 22:44:07,981 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 22 states have (on average 1.5) internal successors, (33), 23 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-19 22:44:07,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-19 22:44:07,985 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:44:07,985 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:44:07,986 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 22:44:07,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:44:07,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1261463571, now seen corresponding path program 1 times [2022-03-19 22:44:07,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:44:07,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544303514] [2022-03-19 22:44:07,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:44:07,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:44:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:44:08,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:44:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:44:08,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:44:08,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:44:08,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544303514] [2022-03-19 22:44:08,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544303514] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:44:08,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:44:08,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:44:08,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910806207] [2022-03-19 22:44:08,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:44:08,510 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:44:08,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:44:08,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:44:08,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:44:08,546 INFO L87 Difference]: Start difference. First operand has 28 states, 22 states have (on average 1.5) internal successors, (33), 23 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:44:10,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:12,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:14,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:17,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:19,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:21,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:23,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:25,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:28,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:30,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:32,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:34,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:36,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:36,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:44:36,979 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2022-03-19 22:44:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-19 22:44:36,985 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-03-19 22:44:36,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:44:36,990 INFO L225 Difference]: With dead ends: 71 [2022-03-19 22:44:36,991 INFO L226 Difference]: Without dead ends: 35 [2022-03-19 22:44:36,998 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-19 22:44:37,000 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 21 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2022-03-19 22:44:37,001 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 95 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 13 Unknown, 0 Unchecked, 28.3s Time] [2022-03-19 22:44:37,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-03-19 22:44:37,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2022-03-19 22:44:37,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:44:37,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2022-03-19 22:44:37,041 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 15 [2022-03-19 22:44:37,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:44:37,042 INFO L478 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2022-03-19 22:44:37,042 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:44:37,044 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2022-03-19 22:44:37,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-03-19 22:44:37,044 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:44:37,045 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:44:37,045 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 22:44:37,047 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 22:44:37,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:44:37,051 INFO L85 PathProgramCache]: Analyzing trace with hash 489359351, now seen corresponding path program 1 times [2022-03-19 22:44:37,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:44:37,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226222461] [2022-03-19 22:44:37,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:44:37,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:44:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:44:37,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:44:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:44:37,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 22:44:37,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:44:37,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226222461] [2022-03-19 22:44:37,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226222461] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:44:37,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:44:37,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 22:44:37,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247147131] [2022-03-19 22:44:37,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:44:37,352 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 22:44:37,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:44:37,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 22:44:37,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:44:37,353 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:44:39,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:41,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:43,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:45,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:48,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:50,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:52,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:54,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:56,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:44:58,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:01,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:03,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:03,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:45:03,393 INFO L93 Difference]: Finished difference Result 60 states and 79 transitions. [2022-03-19 22:45:03,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 22:45:03,394 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-03-19 22:45:03,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:45:03,394 INFO L225 Difference]: With dead ends: 60 [2022-03-19 22:45:03,395 INFO L226 Difference]: Without dead ends: 40 [2022-03-19 22:45:03,395 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-19 22:45:03,396 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 10 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2022-03-19 22:45:03,396 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 80 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 12 Unknown, 0 Unchecked, 25.9s Time] [2022-03-19 22:45:03,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-03-19 22:45:03,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 34. [2022-03-19 22:45:03,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.3) internal successors, (39), 30 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:45:03,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2022-03-19 22:45:03,401 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 16 [2022-03-19 22:45:03,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:45:03,401 INFO L478 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2022-03-19 22:45:03,401 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:45:03,401 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2022-03-19 22:45:03,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-19 22:45:03,401 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:45:03,402 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:45:03,402 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-19 22:45:03,402 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 22:45:03,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:45:03,402 INFO L85 PathProgramCache]: Analyzing trace with hash 7180197, now seen corresponding path program 1 times [2022-03-19 22:45:03,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:45:03,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344673879] [2022-03-19 22:45:03,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:45:03,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:45:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:45:03,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:45:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:45:03,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-19 22:45:03,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:45:03,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344673879] [2022-03-19 22:45:03,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344673879] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:45:03,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:45:03,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 22:45:03,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020488409] [2022-03-19 22:45:03,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:45:03,538 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 22:45:03,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:45:03,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 22:45:03,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 22:45:03,539 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:45:05,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:07,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:09,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:12,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:14,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:16,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:18,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:20,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:22,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:25,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:27,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:29,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:31,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:33,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:37,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:39,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:39,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:45:39,338 INFO L93 Difference]: Finished difference Result 65 states and 84 transitions. [2022-03-19 22:45:39,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 22:45:39,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-03-19 22:45:39,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:45:39,339 INFO L225 Difference]: With dead ends: 65 [2022-03-19 22:45:39,339 INFO L226 Difference]: Without dead ends: 45 [2022-03-19 22:45:39,339 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:45:39,340 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 9 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.8s IncrementalHoareTripleChecker+Time [2022-03-19 22:45:39,340 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 59 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 16 Unknown, 0 Unchecked, 35.8s Time] [2022-03-19 22:45:39,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-03-19 22:45:39,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 34. [2022-03-19 22:45:39,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.3) internal successors, (39), 30 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:45:39,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2022-03-19 22:45:39,345 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 21 [2022-03-19 22:45:39,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:45:39,345 INFO L478 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2022-03-19 22:45:39,345 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:45:39,345 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2022-03-19 22:45:39,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-19 22:45:39,346 INFO L491 BasicCegarLoop]: Found error trace [2022-03-19 22:45:39,346 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 22:45:39,346 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-19 22:45:39,346 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 22:45:39,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 22:45:39,346 INFO L85 PathProgramCache]: Analyzing trace with hash 261280421, now seen corresponding path program 1 times [2022-03-19 22:45:39,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 22:45:39,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054798834] [2022-03-19 22:45:39,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 22:45:39,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 22:45:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:45:39,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 22:45:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 22:45:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-19 22:45:39,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 22:45:39,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054798834] [2022-03-19 22:45:39,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054798834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 22:45:39,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 22:45:39,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 22:45:39,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849565842] [2022-03-19 22:45:39,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 22:45:39,509 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 22:45:39,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 22:45:39,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 22:45:39,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 22:45:39,510 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:45:41,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:43,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:45,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:48,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:50,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:52,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:54,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:56,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:45:58,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:46:01,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:46:03,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:46:05,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:46:07,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:46:09,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:46:11,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-19 22:46:12,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 22:46:12,093 INFO L93 Difference]: Finished difference Result 60 states and 77 transitions. [2022-03-19 22:46:12,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 22:46:12,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-03-19 22:46:12,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 22:46:12,095 INFO L225 Difference]: With dead ends: 60 [2022-03-19 22:46:12,095 INFO L226 Difference]: Without dead ends: 0 [2022-03-19 22:46:12,095 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 22:46:12,096 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 9 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.6s IncrementalHoareTripleChecker+Time [2022-03-19 22:46:12,096 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 59 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 15 Unknown, 0 Unchecked, 32.6s Time] [2022-03-19 22:46:12,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-19 22:46:12,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-19 22:46:12,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-19 22:46:12,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-19 22:46:12,097 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-03-19 22:46:12,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 22:46:12,097 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-19 22:46:12,097 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 22:46:12,097 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-19 22:46:12,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-19 22:46:12,099 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-19 22:46:12,099 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-19 22:46:12,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-19 22:46:12,148 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2022-03-19 22:46:12,148 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2022-03-19 22:46:12,148 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2022-03-19 22:46:12,148 INFO L882 garLoopResultBuilder]: For program point L97(lines 97 106) no Hoare annotation was computed. [2022-03-19 22:46:12,149 INFO L878 garLoopResultBuilder]: At program point L122(lines 25 145) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* .cse0 4294967296) (* 3 .cse1) (* (div (+ .cse2 (* (- 3) .cse1) main_~main__x~0) 4294967296) 4294967296)))))) [2022-03-19 22:46:12,149 INFO L882 garLoopResultBuilder]: For program point mainEXIT(lines 16 151) no Hoare annotation was computed. [2022-03-19 22:46:12,149 INFO L878 garLoopResultBuilder]: At program point L56(lines 26 114) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* .cse0 4294967296) (* 3 .cse1) (* (div (+ .cse2 (* (- 3) .cse1) main_~main__x~0) 4294967296) 4294967296)))))) [2022-03-19 22:46:12,149 INFO L882 garLoopResultBuilder]: For program point L23(lines 23 150) no Hoare annotation was computed. [2022-03-19 22:46:12,149 INFO L882 garLoopResultBuilder]: For program point L48(lines 48 85) no Hoare annotation was computed. [2022-03-19 22:46:12,149 INFO L878 garLoopResultBuilder]: At program point L44(lines 26 114) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* .cse0 4294967296) (* 3 .cse1) (* (div (+ .cse2 (* (- 3) .cse1) main_~main__x~0) 4294967296) 4294967296)))))) [2022-03-19 22:46:12,149 INFO L882 garLoopResultBuilder]: For program point L90(lines 90 112) no Hoare annotation was computed. [2022-03-19 22:46:12,149 INFO L882 garLoopResultBuilder]: For program point L37(lines 37 113) no Hoare annotation was computed. [2022-03-19 22:46:12,149 INFO L882 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2022-03-19 22:46:12,149 INFO L882 garLoopResultBuilder]: For program point L128(lines 128 143) no Hoare annotation was computed. [2022-03-19 22:46:12,149 INFO L882 garLoopResultBuilder]: For program point L62(lines 62 84) no Hoare annotation was computed. [2022-03-19 22:46:12,149 INFO L882 garLoopResultBuilder]: For program point L25(lines 25 145) no Hoare annotation was computed. [2022-03-19 22:46:12,149 INFO L885 garLoopResultBuilder]: At program point L83(lines 17 151) the Hoare annotation is: true [2022-03-19 22:46:12,150 INFO L882 garLoopResultBuilder]: For program point mainFINAL(lines 16 151) no Hoare annotation was computed. [2022-03-19 22:46:12,150 INFO L882 garLoopResultBuilder]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 99) no Hoare annotation was computed. [2022-03-19 22:46:12,150 INFO L878 garLoopResultBuilder]: At program point mainENTRY(lines 16 151) the Hoare annotation is: (and (= ~__tmp_91_0~0 |old(~__tmp_91_0~0)|) (= ~__tmp_91_1~0 |old(~__tmp_91_1~0)|) (= ~__tmp_88_1~0 |old(~__tmp_88_1~0)|) (= ~__tmp_94_0~0 |old(~__tmp_94_0~0)|) (= ~__tmp_88_0~0 |old(~__tmp_88_0~0)|) (= |old(~__tmp_112_0~0)| ~__tmp_112_0~0) (= |old(~__return_121~0)| ~__return_121~0) (= ~__tmp_93_0~0 |old(~__tmp_93_0~0)|)) [2022-03-19 22:46:12,150 INFO L882 garLoopResultBuilder]: For program point L117(lines 117 144) no Hoare annotation was computed. [2022-03-19 22:46:12,150 INFO L885 garLoopResultBuilder]: At program point L142(lines 25 145) the Hoare annotation is: true [2022-03-19 22:46:12,150 INFO L882 garLoopResultBuilder]: For program point L39(lines 39 86) no Hoare annotation was computed. [2022-03-19 22:46:12,150 INFO L885 garLoopResultBuilder]: At program point L134(lines 25 145) the Hoare annotation is: true [2022-03-19 22:46:12,150 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-03-19 22:46:12,150 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__tmp_91_0~0 |old(~__tmp_91_0~0)|) (= ~__tmp_91_1~0 |old(~__tmp_91_1~0)|) (= ~__return_main~0 |old(~__return_main~0)|) (= ~__tmp_88_1~0 |old(~__tmp_88_1~0)|) (= ~__tmp_94_0~0 |old(~__tmp_94_0~0)|) (= ~__tmp_88_0~0 |old(~__tmp_88_0~0)|) (= |old(~__tmp_112_0~0)| ~__tmp_112_0~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~__return_121~0)| ~__return_121~0) (= ~__tmp_93_0~0 |old(~__tmp_93_0~0)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-03-19 22:46:12,150 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-03-19 22:46:12,150 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-03-19 22:46:12,150 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-03-19 22:46:12,150 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-19 22:46:12,150 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-03-19 22:46:12,153 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-03-19 22:46:12,154 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-19 22:46:12,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 10:46:12 BoogieIcfgContainer [2022-03-19 22:46:12,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-19 22:46:12,165 INFO L158 Benchmark]: Toolchain (without parser) took 133516.10ms. Allocated memory was 211.8MB in the beginning and 254.8MB in the end (delta: 43.0MB). Free memory was 159.5MB in the beginning and 204.8MB in the end (delta: -45.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-19 22:46:12,165 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 211.8MB. Free memory is still 175.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-19 22:46:12,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.40ms. Allocated memory is still 211.8MB. Free memory was 159.3MB in the beginning and 186.3MB in the end (delta: -26.9MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. [2022-03-19 22:46:12,165 INFO L158 Benchmark]: Boogie Preprocessor took 19.51ms. Allocated memory is still 211.8MB. Free memory was 186.3MB in the beginning and 184.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-19 22:46:12,166 INFO L158 Benchmark]: RCFGBuilder took 9035.99ms. Allocated memory is still 211.8MB. Free memory was 184.8MB in the beginning and 172.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-19 22:46:12,166 INFO L158 Benchmark]: TraceAbstraction took 124261.14ms. Allocated memory was 211.8MB in the beginning and 254.8MB in the end (delta: 43.0MB). Free memory was 172.2MB in the beginning and 204.8MB in the end (delta: -32.6MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB. [2022-03-19 22:46:12,167 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 211.8MB. Free memory is still 175.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 193.40ms. Allocated memory is still 211.8MB. Free memory was 159.3MB in the beginning and 186.3MB in the end (delta: -26.9MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.51ms. Allocated memory is still 211.8MB. Free memory was 186.3MB in the beginning and 184.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 9035.99ms. Allocated memory is still 211.8MB. Free memory was 184.8MB in the beginning and 172.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 124261.14ms. Allocated memory was 211.8MB in the beginning and 254.8MB in the end (delta: 43.0MB). Free memory was 172.2MB in the beginning and 204.8MB in the end (delta: -32.6MB). Peak memory consumption was 11.7MB. 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 - PositiveResult [Line: 99]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 124.2s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 122.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 56 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 122.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 293 SdHoareTripleChecker+Invalid, 113.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 189 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 251 IncrementalHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 104 mSDtfsCounter, 251 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=2, InterpolantAutomatonStates: 23, 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, 4 MinimizatonAttempts, 20 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 17 NumberOfFragments, 187 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 1175 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 7/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main__x <= main__x / 4294967296 * 4294967296 + 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + (main__x / 4294967296 * -4294967296 + -3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + main__x) / 4294967296 * 4294967296 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main__x <= main__x / 4294967296 * 4294967296 + 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + (main__x / 4294967296 * -4294967296 + -3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + main__x) / 4294967296 * 4294967296 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: main__x <= main__x / 4294967296 * 4294967296 + 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + (main__x / 4294967296 * -4294967296 + -3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + main__x) / 4294967296 * 4294967296 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-03-19 22:46:12,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...