/usr/bin/java -ea -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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-07 17:13:26,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-07 17:13:26,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-07 17:13:26,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-07 17:13:26,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-07 17:13:26,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-07 17:13:26,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-07 17:13:26,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-07 17:13:26,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-07 17:13:26,745 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-07 17:13:26,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-07 17:13:26,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-07 17:13:26,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-07 17:13:26,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-07 17:13:26,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-07 17:13:26,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-07 17:13:26,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-07 17:13:26,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-07 17:13:26,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-07 17:13:26,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-07 17:13:26,756 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-07 17:13:26,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-07 17:13:26,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-07 17:13:26,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-07 17:13:26,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-07 17:13:26,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-07 17:13:26,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-07 17:13:26,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-07 17:13:26,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-07 17:13:26,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-07 17:13:26,784 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-07 17:13:26,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-07 17:13:26,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-07 17:13:26,786 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-07 17:13:26,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-07 17:13:26,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-07 17:13:26,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-07 17:13:26,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-07 17:13:26,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-07 17:13:26,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-07 17:13:26,787 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-07 17:13:26,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-07 17:13:26,787 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-07 17:13:26,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-07 17:13:26,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-07 17:13:26,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-07 17:13:26,788 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-07 17:13:26,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-07 17:13:26,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 17:13:26,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-07 17:13:26,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-07 17:13:26,789 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-07 17:13:26,789 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-07 17:13:27,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-07 17:13:27,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-07 17:13:27,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-07 17:13:27,033 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-07 17:13:27,034 INFO L275 PluginConnector]: CDTParser initialized [2022-04-07 17:13:27,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2022-04-07 17:13:27,107 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8efd713b0/2bdadabd6fa84718ab84d51edda4e05d/FLAGcbfb86759 [2022-04-07 17:13:27,411 INFO L306 CDTParser]: Found 1 translation units. [2022-04-07 17:13:27,411 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2022-04-07 17:13:27,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8efd713b0/2bdadabd6fa84718ab84d51edda4e05d/FLAGcbfb86759 [2022-04-07 17:13:27,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8efd713b0/2bdadabd6fa84718ab84d51edda4e05d [2022-04-07 17:13:27,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-07 17:13:27,848 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-07 17:13:27,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-07 17:13:27,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-07 17:13:27,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-07 17:13:27,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 05:13:27" (1/1) ... [2022-04-07 17:13:27,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d237e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:13:27, skipping insertion in model container [2022-04-07 17:13:27,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 05:13:27" (1/1) ... [2022-04-07 17:13:27,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-07 17:13:27,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-07 17:13:28,012 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+cfa-reducer.c[1250,1263] [2022-04-07 17:13:28,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 17:13:28,024 INFO L203 MainTranslator]: Completed pre-run [2022-04-07 17:13:28,047 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+cfa-reducer.c[1250,1263] [2022-04-07 17:13:28,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 17:13:28,059 INFO L208 MainTranslator]: Completed translation [2022-04-07 17:13:28,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:13:28 WrapperNode [2022-04-07 17:13:28,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-07 17:13:28,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-07 17:13:28,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-07 17:13:28,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-07 17:13:28,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:13:28" (1/1) ... [2022-04-07 17:13:28,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:13:28" (1/1) ... [2022-04-07 17:13:28,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:13:28" (1/1) ... [2022-04-07 17:13:28,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:13:28" (1/1) ... [2022-04-07 17:13:28,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:13:28" (1/1) ... [2022-04-07 17:13:28,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:13:28" (1/1) ... [2022-04-07 17:13:28,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:13:28" (1/1) ... [2022-04-07 17:13:28,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-07 17:13:28,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-07 17:13:28,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-07 17:13:28,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-07 17:13:28,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:13:28" (1/1) ... [2022-04-07 17:13:28,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 17:13:28,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 17:13:28,148 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) [2022-04-07 17:13:28,150 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 [2022-04-07 17:13:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-07 17:13:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-07 17:13:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-07 17:13:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-07 17:13:28,175 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-07 17:13:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-07 17:13:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-07 17:13:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-07 17:13:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-07 17:13:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-07 17:13:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-07 17:13:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-07 17:13:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-07 17:13:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-07 17:13:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-07 17:13:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-07 17:13:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-07 17:13:28,227 INFO L234 CfgBuilder]: Building ICFG [2022-04-07 17:13:28,229 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-07 17:13:32,690 INFO L275 CfgBuilder]: Performing block encoding [2022-04-07 17:13:32,697 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-07 17:13:32,697 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-07 17:13:32,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 05:13:32 BoogieIcfgContainer [2022-04-07 17:13:32,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-07 17:13:32,699 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-07 17:13:32,699 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-07 17:13:32,700 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-07 17:13:32,703 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 05:13:32" (1/1) ... [2022-04-07 17:13:32,704 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-07 17:13:32,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 05:13:32 BasicIcfg [2022-04-07 17:13:32,722 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-07 17:13:32,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-07 17:13:32,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-07 17:13:32,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-07 17:13:32,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.04 05:13:27" (1/4) ... [2022-04-07 17:13:32,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604845d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 05:13:32, skipping insertion in model container [2022-04-07 17:13:32,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 05:13:28" (2/4) ... [2022-04-07 17:13:32,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604845d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 05:13:32, skipping insertion in model container [2022-04-07 17:13:32,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 05:13:32" (3/4) ... [2022-04-07 17:13:32,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604845d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 05:13:32, skipping insertion in model container [2022-04-07 17:13:32,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 05:13:32" (4/4) ... [2022-04-07 17:13:32,728 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.cJordan [2022-04-07 17:13:32,732 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-07 17:13:32,733 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-07 17:13:32,777 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-07 17:13:32,783 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-07 17:13:32,783 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-07 17:13:32,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 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) [2022-04-07 17:13:32,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-07 17:13:32,802 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 17:13:32,803 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 17:13:32,803 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 17:13:32,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 17:13:32,808 INFO L85 PathProgramCache]: Analyzing trace with hash -963747291, now seen corresponding path program 1 times [2022-04-07 17:13:32,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 17:13:32,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054258634] [2022-04-07 17:13:32,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 17:13:32,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 17:13:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 17:13:33,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 17:13:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 17:13:33,071 INFO L290 TraceCheckUtils]: 0: Hoare triple {28#(and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_107~0)| ~__return_107~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [48] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= v_~__return_107~0_2 0) (= 23 (select |v_#length_1| 2)) (= (select |v_#length_1| 3) 12) (= 0 v_~__return_main~0_3) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~__return_main~0=v_~__return_main~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, ~__return_107~0=v_~__return_107~0_2, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~__return_main~0, ~__return_107~0, #NULL.offset, #NULL.base] {22#true} is VALID [2022-04-07 17:13:33,072 INFO L290 TraceCheckUtils]: 1: Hoare triple {22#true} [51] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {22#true} is VALID [2022-04-07 17:13:33,072 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {22#true} {22#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {22#true} is VALID [2022-04-07 17:13:33,074 INFO L272 TraceCheckUtils]: 0: Hoare triple {22#true} [46] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {28#(and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_107~0)| ~__return_107~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 17:13:33,076 INFO L290 TraceCheckUtils]: 1: Hoare triple {28#(and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_107~0)| ~__return_107~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [48] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= v_~__return_107~0_2 0) (= 23 (select |v_#length_1| 2)) (= (select |v_#length_1| 3) 12) (= 0 v_~__return_main~0_3) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~__return_main~0=v_~__return_main~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, ~__return_107~0=v_~__return_107~0_2, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~__return_main~0, ~__return_107~0, #NULL.offset, #NULL.base] {22#true} is VALID [2022-04-07 17:13:33,076 INFO L290 TraceCheckUtils]: 2: Hoare triple {22#true} [51] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {22#true} is VALID [2022-04-07 17:13:33,077 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {22#true} {22#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {22#true} is VALID [2022-04-07 17:13:33,077 INFO L272 TraceCheckUtils]: 4: Hoare triple {22#true} [47] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {22#true} is VALID [2022-04-07 17:13:33,085 INFO L290 TraceCheckUtils]: 5: Hoare triple {22#true} [50] mainENTRY-->L47: Formula: (and (= |v_main_#t~nondet4_2| v_main_~main__x~0_1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~main__y~0_1 1)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~main__x~0=v_main_~main__x~0_1, main_~main__y~0=v_main_~main__y~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~main__x~0, main_~main__y~0] {27#(= (+ (- 1) main_~main__y~0) 0)} is VALID [2022-04-07 17:13:33,088 INFO L290 TraceCheckUtils]: 6: Hoare triple {27#(= (+ (- 1) main_~main__y~0) 0)} [52] L47-->L16: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~main____CPAchecker_TMP_0~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|} OutVars{main_~main____CPAchecker_TMP_0~0=v_main_~main____CPAchecker_TMP_0~0_1} AuxVars[] AssignedVars[main_#t~nondet5, main_~main____CPAchecker_TMP_0~0] {27#(= (+ (- 1) main_~main__y~0) 0)} is VALID [2022-04-07 17:13:33,090 INFO L290 TraceCheckUtils]: 7: Hoare triple {27#(= (+ (- 1) main_~main__y~0) 0)} [54] L16-->L54: Formula: (= v_main_~main____CPAchecker_TMP_0~0_5 0) InVars {main_~main____CPAchecker_TMP_0~0=v_main_~main____CPAchecker_TMP_0~0_5} OutVars{main_~main____CPAchecker_TMP_0~0=v_main_~main____CPAchecker_TMP_0~0_5} AuxVars[] AssignedVars[] {27#(= (+ (- 1) main_~main__y~0) 0)} is VALID [2022-04-07 17:13:33,093 INFO L290 TraceCheckUtils]: 8: Hoare triple {27#(= (+ (- 1) main_~main__y~0) 0)} [57] L54-->L61: Formula: (and (= v_main_~__tmp_1~0_1 v_main_~__VERIFIER_assert__cond~0_2) (= (mod v_main_~main__y~0_7 4294967296) 0) (= v_main_~__tmp_1~0_1 (ite (= (mod (mod (mod v_main_~main__x~0_12 4294967296) 3) 4294967296) 0) 1 0))) InVars {main_~main__x~0=v_main_~main__x~0_12, main_~main__y~0=v_main_~main__y~0_7} OutVars{main_~__VERIFIER_assert__cond~0=v_main_~__VERIFIER_assert__cond~0_2, main_~main__x~0=v_main_~main__x~0_12, main_~main__y~0=v_main_~main__y~0_7, main_~__tmp_1~0=v_main_~__tmp_1~0_1} AuxVars[] AssignedVars[main_~__VERIFIER_assert__cond~0, main_~__tmp_1~0] {23#false} is VALID [2022-04-07 17:13:33,094 INFO L290 TraceCheckUtils]: 9: Hoare triple {23#false} [61] L61-->L63: Formula: (= v_main_~__VERIFIER_assert__cond~0_4 0) InVars {main_~__VERIFIER_assert__cond~0=v_main_~__VERIFIER_assert__cond~0_4} OutVars{main_~__VERIFIER_assert__cond~0=v_main_~__VERIFIER_assert__cond~0_4} AuxVars[] AssignedVars[] {23#false} is VALID [2022-04-07 17:13:33,094 INFO L290 TraceCheckUtils]: 10: Hoare triple {23#false} [66] L63-->mainErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#false} is VALID [2022-04-07 17:13:33,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 17:13:33,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 17:13:33,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054258634] [2022-04-07 17:13:33,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054258634] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 17:13:33,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 17:13:33,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 17:13:33,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203640403] [2022-04-07 17:13:33,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 17:13:33,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 11 [2022-04-07 17:13:33,104 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 17:13:33,106 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-04-07 17:13:33,138 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 17:13:33,138 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 17:13:33,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 17:13:33,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 17:13:33,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 17:13:33,163 INFO L87 Difference]: Start difference. First operand has 19 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 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 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-04-07 17:13:37,407 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 [] [2022-04-07 17:13:41,748 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 [] [2022-04-07 17:13:42,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 17:13:42,031 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2022-04-07 17:13:42,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 17:13:42,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 11 [2022-04-07 17:13:42,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 17:13:42,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-04-07 17:13:42,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 39 transitions. [2022-04-07 17:13:42,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-04-07 17:13:42,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 39 transitions. [2022-04-07 17:13:42,057 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 39 transitions. [2022-04-07 17:13:42,113 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 17:13:42,122 INFO L225 Difference]: With dead ends: 29 [2022-04-07 17:13:42,123 INFO L226 Difference]: Without dead ends: 20 [2022-04-07 17:13:42,124 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 17:13:42,128 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 31 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-07 17:13:42,129 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 31 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 2 Unknown, 0 Unchecked, 4.1s Time] [2022-04-07 17:13:42,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-04-07 17:13:42,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2022-04-07 17:13:42,155 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 17:13:42,155 INFO L82 GeneralOperation]: Start isEquivalent. First operand 20 states. Second operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 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) [2022-04-07 17:13:42,156 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 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) [2022-04-07 17:13:42,156 INFO L87 Difference]: Start difference. First operand 20 states. Second operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 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) [2022-04-07 17:13:42,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 17:13:42,165 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2022-04-07 17:13:42,165 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2022-04-07 17:13:42,165 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 17:13:42,166 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 17:13:42,167 INFO L74 IsIncluded]: Start isIncluded. First operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 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) Second operand 20 states. [2022-04-07 17:13:42,167 INFO L87 Difference]: Start difference. First operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 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) Second operand 20 states. [2022-04-07 17:13:42,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 17:13:42,178 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2022-04-07 17:13:42,178 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2022-04-07 17:13:42,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 17:13:42,178 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 17:13:42,178 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 17:13:42,178 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 17:13:42,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 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) [2022-04-07 17:13:42,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2022-04-07 17:13:42,181 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2022-04-07 17:13:42,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 17:13:42,181 INFO L478 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2022-04-07 17:13:42,181 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-04-07 17:13:42,182 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-04-07 17:13:42,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-07 17:13:42,182 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 17:13:42,182 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 17:13:42,182 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-07 17:13:42,183 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 17:13:42,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 17:13:42,184 INFO L85 PathProgramCache]: Analyzing trace with hash -92546851, now seen corresponding path program 1 times [2022-04-07 17:13:42,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 17:13:42,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744356687] [2022-04-07 17:13:42,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 17:13:42,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 17:13:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 17:13:42,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 17:13:42,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 17:13:42,535 INFO L290 TraceCheckUtils]: 0: Hoare triple {127#(and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_107~0)| ~__return_107~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [48] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= v_~__return_107~0_2 0) (= 23 (select |v_#length_1| 2)) (= (select |v_#length_1| 3) 12) (= 0 v_~__return_main~0_3) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~__return_main~0=v_~__return_main~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, ~__return_107~0=v_~__return_107~0_2, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~__return_main~0, ~__return_107~0, #NULL.offset, #NULL.base] {119#true} is VALID [2022-04-07 17:13:42,535 INFO L290 TraceCheckUtils]: 1: Hoare triple {119#true} [51] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {119#true} is VALID [2022-04-07 17:13:42,535 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {119#true} {119#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {119#true} is VALID [2022-04-07 17:13:42,536 INFO L272 TraceCheckUtils]: 0: Hoare triple {119#true} [46] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {127#(and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_107~0)| ~__return_107~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 17:13:42,536 INFO L290 TraceCheckUtils]: 1: Hoare triple {127#(and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_107~0)| ~__return_107~0) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [48] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= v_~__return_107~0_2 0) (= 23 (select |v_#length_1| 2)) (= (select |v_#length_1| 3) 12) (= 0 v_~__return_main~0_3) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~__return_main~0=v_~__return_main~0_3, #StackHeapBarrier=|v_#StackHeapBarrier_1|, ~__return_107~0=v_~__return_107~0_2, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[~__return_main~0, ~__return_107~0, #NULL.offset, #NULL.base] {119#true} is VALID [2022-04-07 17:13:42,537 INFO L290 TraceCheckUtils]: 2: Hoare triple {119#true} [51] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {119#true} is VALID [2022-04-07 17:13:42,537 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {119#true} {119#true} [68] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {119#true} is VALID [2022-04-07 17:13:42,537 INFO L272 TraceCheckUtils]: 4: Hoare triple {119#true} [47] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {119#true} is VALID [2022-04-07 17:13:42,538 INFO L290 TraceCheckUtils]: 5: Hoare triple {119#true} [50] mainENTRY-->L47: Formula: (and (= |v_main_#t~nondet4_2| v_main_~main__x~0_1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~main__y~0_1 1)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~main__x~0=v_main_~main__x~0_1, main_~main__y~0=v_main_~main__y~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~main__x~0, main_~main__y~0] {124#(and (<= main_~main__x~0 2147483647) (or (<= 0 (+ 2147483648 main_~main__x~0)) (< 1431655764 (+ (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3) (* (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) (* (- 3) (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) main_~main__x~0) 4294967296) 1431655765)))))} is VALID [2022-04-07 17:13:42,539 INFO L290 TraceCheckUtils]: 6: Hoare triple {124#(and (<= main_~main__x~0 2147483647) (or (<= 0 (+ 2147483648 main_~main__x~0)) (< 1431655764 (+ (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3) (* (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) (* (- 3) (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) main_~main__x~0) 4294967296) 1431655765)))))} [52] L47-->L16: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~main____CPAchecker_TMP_0~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|} OutVars{main_~main____CPAchecker_TMP_0~0=v_main_~main____CPAchecker_TMP_0~0_1} AuxVars[] AssignedVars[main_#t~nondet5, main_~main____CPAchecker_TMP_0~0] {124#(and (<= main_~main__x~0 2147483647) (or (<= 0 (+ 2147483648 main_~main__x~0)) (< 1431655764 (+ (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3) (* (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) (* (- 3) (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) main_~main__x~0) 4294967296) 1431655765)))))} is VALID [2022-04-07 17:13:42,540 INFO L290 TraceCheckUtils]: 7: Hoare triple {124#(and (<= main_~main__x~0 2147483647) (or (<= 0 (+ 2147483648 main_~main__x~0)) (< 1431655764 (+ (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3) (* (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) (* (- 3) (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) main_~main__x~0) 4294967296) 1431655765)))))} [53] L16-->L18: Formula: (not (= v_main_~main____CPAchecker_TMP_0~0_4 0)) InVars {main_~main____CPAchecker_TMP_0~0=v_main_~main____CPAchecker_TMP_0~0_4} OutVars{main_~main____CPAchecker_TMP_0~0=v_main_~main____CPAchecker_TMP_0~0_4} AuxVars[] AssignedVars[] {124#(and (<= main_~main__x~0 2147483647) (or (<= 0 (+ 2147483648 main_~main__x~0)) (< 1431655764 (+ (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3) (* (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) (* (- 3) (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) main_~main__x~0) 4294967296) 1431655765)))))} is VALID [2022-04-07 17:13:42,557 INFO L290 TraceCheckUtils]: 8: Hoare triple {124#(and (<= main_~main__x~0 2147483647) (or (<= 0 (+ 2147483648 main_~main__x~0)) (< 1431655764 (+ (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3) (* (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) (* (- 3) (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) main_~main__x~0) 4294967296) 1431655765)))))} [55] L18-->L47: Formula: (and (= (+ 2 v_main_~main__x~0_3) v_main_~main__x~0_2) (= (mod (mod (mod v_main_~main__x~0_3 4294967296) 3) 4294967296) 1) (= 0 v_main_~main__y~0_3)) InVars {main_~main__x~0=v_main_~main__x~0_3} OutVars{main_~main__x~0=v_main_~main__x~0_2, main_~main__y~0=v_main_~main__y~0_3} AuxVars[] AssignedVars[main_~main__x~0, main_~main__y~0] {125#(<= main_~main__x~0 (+ (* (div main_~main__x~0 4294967296) 4294967296) (* 3 (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) (* (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) (* (- 3) (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) main_~main__x~0) 4294967296) 4294967296)))} is VALID [2022-04-07 17:13:42,559 INFO L290 TraceCheckUtils]: 9: Hoare triple {125#(<= main_~main__x~0 (+ (* (div main_~main__x~0 4294967296) 4294967296) (* 3 (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) (* (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) (* (- 3) (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) main_~main__x~0) 4294967296) 4294967296)))} [52] L47-->L16: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648)) (= v_main_~main____CPAchecker_TMP_0~0_1 |v_main_#t~nondet5_2|)) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|} OutVars{main_~main____CPAchecker_TMP_0~0=v_main_~main____CPAchecker_TMP_0~0_1} AuxVars[] AssignedVars[main_#t~nondet5, main_~main____CPAchecker_TMP_0~0] {125#(<= main_~main__x~0 (+ (* (div main_~main__x~0 4294967296) 4294967296) (* 3 (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) (* (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) (* (- 3) (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) main_~main__x~0) 4294967296) 4294967296)))} is VALID [2022-04-07 17:13:42,559 INFO L290 TraceCheckUtils]: 10: Hoare triple {125#(<= main_~main__x~0 (+ (* (div main_~main__x~0 4294967296) 4294967296) (* 3 (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) (* (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) (* (- 3) (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) main_~main__x~0) 4294967296) 4294967296)))} [54] L16-->L54: Formula: (= v_main_~main____CPAchecker_TMP_0~0_5 0) InVars {main_~main____CPAchecker_TMP_0~0=v_main_~main____CPAchecker_TMP_0~0_5} OutVars{main_~main____CPAchecker_TMP_0~0=v_main_~main____CPAchecker_TMP_0~0_5} AuxVars[] AssignedVars[] {125#(<= main_~main__x~0 (+ (* (div main_~main__x~0 4294967296) 4294967296) (* 3 (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) (* (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) (* (- 3) (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) main_~main__x~0) 4294967296) 4294967296)))} is VALID [2022-04-07 17:13:42,562 INFO L290 TraceCheckUtils]: 11: Hoare triple {125#(<= main_~main__x~0 (+ (* (div main_~main__x~0 4294967296) 4294967296) (* 3 (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) (* (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) (* (- 3) (div (+ (* (div main_~main__x~0 4294967296) (- 4294967296)) main_~main__x~0) 3)) main_~main__x~0) 4294967296) 4294967296)))} [57] L54-->L61: Formula: (and (= v_main_~__tmp_1~0_1 v_main_~__VERIFIER_assert__cond~0_2) (= (mod v_main_~main__y~0_7 4294967296) 0) (= v_main_~__tmp_1~0_1 (ite (= (mod (mod (mod v_main_~main__x~0_12 4294967296) 3) 4294967296) 0) 1 0))) InVars {main_~main__x~0=v_main_~main__x~0_12, main_~main__y~0=v_main_~main__y~0_7} OutVars{main_~__VERIFIER_assert__cond~0=v_main_~__VERIFIER_assert__cond~0_2, main_~main__x~0=v_main_~main__x~0_12, main_~main__y~0=v_main_~main__y~0_7, main_~__tmp_1~0=v_main_~__tmp_1~0_1} AuxVars[] AssignedVars[main_~__VERIFIER_assert__cond~0, main_~__tmp_1~0] {126#(not (= main_~__VERIFIER_assert__cond~0 0))} is VALID [2022-04-07 17:13:42,562 INFO L290 TraceCheckUtils]: 12: Hoare triple {126#(not (= main_~__VERIFIER_assert__cond~0 0))} [61] L61-->L63: Formula: (= v_main_~__VERIFIER_assert__cond~0_4 0) InVars {main_~__VERIFIER_assert__cond~0=v_main_~__VERIFIER_assert__cond~0_4} OutVars{main_~__VERIFIER_assert__cond~0=v_main_~__VERIFIER_assert__cond~0_4} AuxVars[] AssignedVars[] {120#false} is VALID [2022-04-07 17:13:42,563 INFO L290 TraceCheckUtils]: 13: Hoare triple {120#false} [66] L63-->mainErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {120#false} is VALID [2022-04-07 17:13:42,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 17:13:42,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 17:13:42,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744356687] [2022-04-07 17:13:42,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744356687] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 17:13:42,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676418239] [2022-04-07 17:13:42,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 17:13:42,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 17:13:42,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 17:13:42,579 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) [2022-04-07 17:13:42,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process