/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_NONE.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label23.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 22:21:31,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 22:21:31,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 22:21:31,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 22:21:31,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 22:21:31,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 22:21:31,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 22:21:31,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 22:21:31,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 22:21:31,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 22:21:31,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 22:21:31,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 22:21:31,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 22:21:31,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 22:21:31,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 22:21:31,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 22:21:31,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 22:21:31,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 22:21:31,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 22:21:31,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 22:21:31,837 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 22:21:31,856 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 22:21:31,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 22:21:31,856 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 22:21:31,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 22:21:31,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 22:21:31,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 22:21:31,857 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 22:21:31,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 22:21:31,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 22:21:31,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 22:21:31,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 22:21:31,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 22:21:31,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 22:21:31,858 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 22:21:31,858 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 22:21:31,858 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 22:21:31,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 22:21:31,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 22:21:31,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 22:21:31,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 22:21:31,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 22:21:31,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 22:21:31,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 22:21:31,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 22:21:31,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 22:21:31,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 22:21:31,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 22:21:31,861 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 22:21:31,862 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 22:21:31,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 22:21:31,862 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 22:21:31,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 22:21:31,863 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 22:21:31,863 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 22:21:32,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 22:21:32,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 22:21:32,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 22:21:32,091 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 22:21:32,101 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 22:21:32,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label23.c [2022-01-10 22:21:32,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/422df0db3/aed78a79d4814332ae22ea75d4415825/FLAG5fb745492 [2022-01-10 22:21:32,553 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 22:21:32,553 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label23.c [2022-01-10 22:21:32,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/422df0db3/aed78a79d4814332ae22ea75d4415825/FLAG5fb745492 [2022-01-10 22:21:32,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/422df0db3/aed78a79d4814332ae22ea75d4415825 [2022-01-10 22:21:32,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 22:21:32,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 22:21:32,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 22:21:32,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 22:21:32,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 22:21:32,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 10:21:32" (1/1) ... [2022-01-10 22:21:32,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d680422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:21:32, skipping insertion in model container [2022-01-10 22:21:32,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 10:21:32" (1/1) ... [2022-01-10 22:21:32,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 22:21:32,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 22:21:32,835 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label23.c[5328,5341] [2022-01-10 22:21:32,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 22:21:32,935 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 22:21:32,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label23.c[5328,5341] [2022-01-10 22:21:33,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 22:21:33,027 INFO L208 MainTranslator]: Completed translation [2022-01-10 22:21:33,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:21:33 WrapperNode [2022-01-10 22:21:33,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 22:21:33,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 22:21:33,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 22:21:33,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 22:21:33,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:21:33" (1/1) ... [2022-01-10 22:21:33,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:21:33" (1/1) ... [2022-01-10 22:21:33,097 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 595 [2022-01-10 22:21:33,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 22:21:33,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 22:21:33,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 22:21:33,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 22:21:33,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:21:33" (1/1) ... [2022-01-10 22:21:33,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:21:33" (1/1) ... [2022-01-10 22:21:33,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:21:33" (1/1) ... [2022-01-10 22:21:33,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:21:33" (1/1) ... [2022-01-10 22:21:33,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:21:33" (1/1) ... [2022-01-10 22:21:33,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:21:33" (1/1) ... [2022-01-10 22:21:33,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:21:33" (1/1) ... [2022-01-10 22:21:33,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 22:21:33,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 22:21:33,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 22:21:33,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 22:21:33,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:21:33" (1/1) ... [2022-01-10 22:21:33,176 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 22:21:33,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 22:21:33,195 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 22:21:33,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 22:21:33,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 22:21:33,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 22:21:33,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 22:21:33,213 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 22:21:33,277 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 22:21:33,278 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 22:21:35,116 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 22:21:35,122 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 22:21:35,122 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 22:21:35,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 10:21:35 BoogieIcfgContainer [2022-01-10 22:21:35,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 22:21:35,125 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 22:21:35,125 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 22:21:35,126 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 22:21:35,127 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 10:21:35" (1/1) ... [2022-01-10 22:21:35,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 10:21:35 BasicIcfg [2022-01-10 22:21:35,388 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 22:21:35,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 22:21:35,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 22:21:35,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 22:21:35,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 10:21:32" (1/4) ... [2022-01-10 22:21:35,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c6bd7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 10:21:35, skipping insertion in model container [2022-01-10 22:21:35,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:21:33" (2/4) ... [2022-01-10 22:21:35,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c6bd7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 10:21:35, skipping insertion in model container [2022-01-10 22:21:35,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 10:21:35" (3/4) ... [2022-01-10 22:21:35,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c6bd7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 10:21:35, skipping insertion in model container [2022-01-10 22:21:35,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 10:21:35" (4/4) ... [2022-01-10 22:21:35,398 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label23.cTransformedIcfg [2022-01-10 22:21:35,402 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 22:21:35,403 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 22:21:35,478 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 22:21:35,485 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 22:21:35,485 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 22:21:35,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 22:21:35,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 22:21:35,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 22:21:35,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 22:21:35,509 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 22:21:35,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 22:21:35,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1465638685, now seen corresponding path program 1 times [2022-01-10 22:21:35,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 22:21:35,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271997320] [2022-01-10 22:21:35,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 22:21:35,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 22:21:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 22:21:35,784 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 22:21:35,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 22:21:35,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271997320] [2022-01-10 22:21:35,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271997320] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 22:21:35,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 22:21:35,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 22:21:35,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143309578] [2022-01-10 22:21:35,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 22:21:35,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 22:21:35,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 22:21:35,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 22:21:35,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 22:21:35,816 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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 22:21:38,042 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 [] [2022-01-10 22:21:40,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:21:42,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:21:44,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:21:46,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:21:48,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:21:50,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:21:53,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:21:55,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:21:57,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:21:59,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:01,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:03,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:05,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:08,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:10,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:12,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:14,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:16,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:18,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:20,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:23,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:25,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:27,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:29,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:31,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:33,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:35,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:38,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:40,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:42,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:44,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:46,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:48,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:50,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 22:22:53,057 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 [] [2022-01-10 22:22:53,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 22:22:53,386 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2022-01-10 22:22:53,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 22:22:53,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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 46 [2022-01-10 22:22:53,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 22:22:53,422 INFO L225 Difference]: With dead ends: 552 [2022-01-10 22:22:53,422 INFO L226 Difference]: Without dead ends: 282 [2022-01-10 22:22:53,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 22:22:53,427 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 124 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 105 mSolverCounterUnsat, 36 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 36 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.5s IncrementalHoareTripleChecker+Time [2022-01-10 22:22:53,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 76 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 377 Invalid, 36 Unknown, 0 Unchecked, 77.5s Time] [2022-01-10 22:22:53,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-01-10 22:22:53,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2022-01-10 22:22:53,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.5373665480427046) internal successors, (432), 281 states have internal predecessors, (432), 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 22:22:53,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 432 transitions. [2022-01-10 22:22:53,492 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 432 transitions. Word has length 46 [2022-01-10 22:22:53,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 22:22:53,493 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 432 transitions. [2022-01-10 22:22:53,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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 22:22:53,494 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 432 transitions. [2022-01-10 22:22:53,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 22:22:53,500 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 22:22:53,501 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 22:22:53,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 22:22:53,502 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 22:22:53,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 22:22:53,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1028744509, now seen corresponding path program 1 times [2022-01-10 22:22:53,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 22:22:53,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677668120] [2022-01-10 22:22:53,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 22:22:53,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 22:22:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 22:22:53,737 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-01-10 22:22:53,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 22:22:53,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677668120] [2022-01-10 22:22:53,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677668120] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 22:22:53,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 22:22:53,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 22:22:53,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644105260] [2022-01-10 22:22:53,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 22:22:53,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 22:22:53,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 22:22:53,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 22:22:53,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 22:22:53,745 INFO L87 Difference]: Start difference. First operand 282 states and 432 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 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)