/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/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/loop-zilu/benchmark05_conjunctive.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 08:44:57,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 08:44:57,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 08:44:57,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 08:44:57,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 08:44:57,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 08:44:57,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 08:44:57,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 08:44:57,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 08:44:57,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 08:44:57,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 08:44:57,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 08:44:57,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 08:44:57,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 08:44:57,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 08:44:57,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 08:44:57,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 08:44:57,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 08:44:57,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 08:44:57,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 08:44:57,464 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 08:44:57,490 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 08:44:57,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 08:44:57,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 08:44:57,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 08:44:57,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 08:44:57,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 08:44:57,491 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 08:44:57,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 08:44:57,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 08:44:57,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 08:44:57,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 08:44:57,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 08:44:57,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 08:44:57,493 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 08:44:57,493 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 08:44:57,493 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 08:44:57,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 08:44:57,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 08:44:57,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 08:44:57,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 08:44:57,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 08:44:57,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 08:44:57,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 08:44:57,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 08:44:57,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 08:44:57,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 08:44:57,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 08:44:57,495 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 08:44:57,495 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 08:44:57,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 08:44:57,495 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 08:44:57,495 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 08:44:57,496 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 08:44:57,496 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 08:44:57,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 08:44:57,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 08:44:57,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 08:44:57,692 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 08:44:57,692 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 08:44:57,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark05_conjunctive.i [2022-01-10 08:44:57,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7974af037/cbf1b0459a6e434d97ed0c99cbe155a8/FLAGf1eb33f93 [2022-01-10 08:44:58,095 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 08:44:58,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark05_conjunctive.i [2022-01-10 08:44:58,100 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7974af037/cbf1b0459a6e434d97ed0c99cbe155a8/FLAGf1eb33f93 [2022-01-10 08:44:58,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7974af037/cbf1b0459a6e434d97ed0c99cbe155a8 [2022-01-10 08:44:58,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 08:44:58,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 08:44:58,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 08:44:58,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 08:44:58,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 08:44:58,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:44:58" (1/1) ... [2022-01-10 08:44:58,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ec9fa0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:44:58, skipping insertion in model container [2022-01-10 08:44:58,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:44:58" (1/1) ... [2022-01-10 08:44:58,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 08:44:58,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 08:44:58,261 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-zilu/benchmark05_conjunctive.i[873,886] [2022-01-10 08:44:58,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 08:44:58,277 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 08:44:58,286 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-zilu/benchmark05_conjunctive.i[873,886] [2022-01-10 08:44:58,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 08:44:58,298 INFO L208 MainTranslator]: Completed translation [2022-01-10 08:44:58,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:44:58 WrapperNode [2022-01-10 08:44:58,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 08:44:58,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 08:44:58,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 08:44:58,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 08:44:58,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:44:58" (1/1) ... [2022-01-10 08:44:58,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:44:58" (1/1) ... [2022-01-10 08:44:58,330 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-01-10 08:44:58,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 08:44:58,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 08:44:58,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 08:44:58,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 08:44:58,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:44:58" (1/1) ... [2022-01-10 08:44:58,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:44:58" (1/1) ... [2022-01-10 08:44:58,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:44:58" (1/1) ... [2022-01-10 08:44:58,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:44:58" (1/1) ... [2022-01-10 08:44:58,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:44:58" (1/1) ... [2022-01-10 08:44:58,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:44:58" (1/1) ... [2022-01-10 08:44:58,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:44:58" (1/1) ... [2022-01-10 08:44:58,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 08:44:58,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 08:44:58,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 08:44:58,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 08:44:58,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:44:58" (1/1) ... [2022-01-10 08:44:58,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 08:44:58,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:44:58,386 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) [2022-01-10 08:44:58,393 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 [2022-01-10 08:44:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 08:44:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 08:44:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 08:44:58,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 08:44:58,446 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 08:44:58,447 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 08:44:58,583 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 08:44:58,589 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 08:44:58,589 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 08:44:58,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:44:58 BoogieIcfgContainer [2022-01-10 08:44:58,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 08:44:58,591 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 08:44:58,591 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 08:44:58,592 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 08:44:58,594 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:44:58" (1/1) ... [2022-01-10 08:44:58,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:44:58 BasicIcfg [2022-01-10 08:44:58,684 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 08:44:58,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 08:44:58,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 08:44:58,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 08:44:58,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:44:58" (1/4) ... [2022-01-10 08:44:58,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb81b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:44:58, skipping insertion in model container [2022-01-10 08:44:58,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:44:58" (2/4) ... [2022-01-10 08:44:58,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb81b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:44:58, skipping insertion in model container [2022-01-10 08:44:58,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:44:58" (3/4) ... [2022-01-10 08:44:58,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb81b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:44:58, skipping insertion in model container [2022-01-10 08:44:58,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:44:58" (4/4) ... [2022-01-10 08:44:58,690 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark05_conjunctive.iTransformedIcfg [2022-01-10 08:44:58,693 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 08:44:58,694 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 08:44:58,742 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 08:44:58,747 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 08:44:58,749 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 08:44:58,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 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) [2022-01-10 08:44:58,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-10 08:44:58,779 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:44:58,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:44:58,780 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 08:44:58,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:44:58,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1113939282, now seen corresponding path program 1 times [2022-01-10 08:44:58,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:44:58,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189931511] [2022-01-10 08:44:58,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:44:58,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:44:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:44:58,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:44:58,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:44:58,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189931511] [2022-01-10 08:44:58,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189931511] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:44:58,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:44:58,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 08:44:58,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038586405] [2022-01-10 08:44:58,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:44:58,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 08:44:58,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:44:58,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 08:44:59,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 08:44:59,002 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-01-10 08:44:59,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:44:59,013 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2022-01-10 08:44:59,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 08:44:59,015 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) Word has length 7 [2022-01-10 08:44:59,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:44:59,021 INFO L225 Difference]: With dead ends: 21 [2022-01-10 08:44:59,021 INFO L226 Difference]: Without dead ends: 9 [2022-01-10 08:44:59,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 08:44:59,027 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 08:44:59,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 08:44:59,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-01-10 08:44:59,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-01-10 08:44:59,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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) [2022-01-10 08:44:59,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2022-01-10 08:44:59,054 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 7 [2022-01-10 08:44:59,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:44:59,054 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-01-10 08:44:59,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-01-10 08:44:59,055 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2022-01-10 08:44:59,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-10 08:44:59,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:44:59,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:44:59,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 08:44:59,057 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 08:44:59,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:44:59,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1113909491, now seen corresponding path program 1 times [2022-01-10 08:44:59,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:44:59,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604922027] [2022-01-10 08:44:59,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:44:59,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:44:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:44:59,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:44:59,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:44:59,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604922027] [2022-01-10 08:44:59,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604922027] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:44:59,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:44:59,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 08:44:59,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223871277] [2022-01-10 08:44:59,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:44:59,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 08:44:59,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:44:59,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 08:44:59,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 08:44:59,162 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-01-10 08:44:59,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:44:59,193 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-01-10 08:44:59,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 08:44:59,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2022-01-10 08:44:59,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:44:59,194 INFO L225 Difference]: With dead ends: 14 [2022-01-10 08:44:59,194 INFO L226 Difference]: Without dead ends: 10 [2022-01-10 08:44:59,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 08:44:59,200 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 08:44:59,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 08:44:59,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-01-10 08:44:59,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-01-10 08:44:59,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 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) [2022-01-10 08:44:59,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2022-01-10 08:44:59,207 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 7 [2022-01-10 08:44:59,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:44:59,207 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2022-01-10 08:44:59,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-01-10 08:44:59,207 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-01-10 08:44:59,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 08:44:59,208 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:44:59,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:44:59,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 08:44:59,208 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 08:44:59,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:44:59,209 INFO L85 PathProgramCache]: Analyzing trace with hash -990793392, now seen corresponding path program 1 times [2022-01-10 08:44:59,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:44:59,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938517945] [2022-01-10 08:44:59,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:44:59,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:44:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:44:59,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:44:59,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:44:59,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938517945] [2022-01-10 08:44:59,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938517945] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 08:44:59,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802870400] [2022-01-10 08:44:59,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:44:59,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:44:59,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:44:59,808 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) [2022-01-10 08:44:59,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 08:44:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:44:59,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 17 conjunts are in the unsatisfiable core [2022-01-10 08:44:59,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 08:45:37,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:45:37,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 08:45:38,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:45:38,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802870400] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 08:45:38,312 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 08:45:38,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-01-10 08:45:38,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526345464] [2022-01-10 08:45:38,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 08:45:38,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 08:45:38,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:45:38,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 08:45:38,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-01-10 08:45:38,315 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 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) [2022-01-10 08:45:39,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:45:39,302 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2022-01-10 08:45:39,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 08:45:39,302 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 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) Word has length 9 [2022-01-10 08:45:39,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:45:39,303 INFO L225 Difference]: With dead ends: 17 [2022-01-10 08:45:39,303 INFO L226 Difference]: Without dead ends: 13 [2022-01-10 08:45:39,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-01-10 08:45:39,304 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 08:45:39,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 36 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 10 Unchecked, 0.7s Time] [2022-01-10 08:45:39,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-01-10 08:45:39,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2022-01-10 08:45:39,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-01-10 08:45:39,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2022-01-10 08:45:39,306 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 9 [2022-01-10 08:45:39,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:45:39,307 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-01-10 08:45:39,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 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) [2022-01-10 08:45:39,307 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-01-10 08:45:39,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 08:45:39,307 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:45:39,307 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:45:39,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-10 08:45:39,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:45:39,508 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 08:45:39,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:45:39,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1359660755, now seen corresponding path program 2 times [2022-01-10 08:45:39,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:45:39,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043402706] [2022-01-10 08:45:39,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:45:39,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:45:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:45:43,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 08:45:43,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:45:43,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043402706] [2022-01-10 08:45:43,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043402706] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 08:45:43,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793884699] [2022-01-10 08:45:43,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 08:45:43,122 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:45:43,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:45:43,123 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 08:45:43,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 08:45:43,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 08:45:43,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 08:45:43,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 28 conjunts are in the unsatisfiable core [2022-01-10 08:45:43,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 08:45:58,830 WARN L838 $PredicateComparison]: unable to prove that (and (<= 0 |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (< |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 4294967296) (< |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 4294967296) (< |c_ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| 4294967296) (exists ((|aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_4_73| Int)) (let ((.cse0 (* 2 (mod (+ 2147483647 |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 2147483648)))) (and (< (+ |c_ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| .cse0 1) (+ (* 2 (mod |c_ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| 2147483648)) |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| (* |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_4_73| 4294967296))) (let ((.cse1 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 2147483646) 2147483648))) (< (+ (div (+ (* (- 2) (mod (+ 2147483647 |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 2147483648)) 4294967295 |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (* (- 18446744078004518912) |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_4_73|) (* |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| (- 4294967297)) .cse0) (- 4294967296)) (div (+ (* |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| (- 4294967295)) (* .cse1 (- 2)) |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (* |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_4_73| (- 18446744069414584320)) 4294967293) (- 4294967296)) 1) (+ (* 8589934592 |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_4_73|) (div (+ (* (- 1) |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 2 (* |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_4_73| (- 4294967296)) (* .cse1 2)) 4294967296) (div (+ (* (- 1) |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 2147483648) 2147483648) (* |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 2))))))) (<= 0 |c_ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int|) (<= 0 |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|)) is different from false