java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:45:02,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:45:02,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:45:02,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:45:02,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:45:02,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:45:02,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:45:02,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:45:02,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:45:02,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:45:02,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:45:02,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:45:02,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:45:02,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:45:02,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:45:02,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:45:02,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:45:02,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:45:02,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:45:02,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:45:02,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:45:02,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:45:02,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:45:02,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:45:03,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:45:03,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:45:03,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:45:03,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:45:03,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:45:03,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:45:03,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:45:03,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:45:03,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:45:03,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:45:03,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:45:03,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:45:03,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:45:03,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:45:03,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:45:03,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:45:03,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:45:03,012 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:45:03,046 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:45:03,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:45:03,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:45:03,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:45:03,048 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:45:03,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:45:03,048 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:45:03,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:45:03,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:45:03,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:45:03,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:45:03,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:45:03,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:45:03,050 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:45:03,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:45:03,050 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:45:03,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:45:03,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:45:03,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:45:03,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:45:03,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:45:03,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:45:03,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:45:03,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:45:03,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:45:03,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:45:03,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:45:03,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:45:03,053 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:45:03,397 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:45:03,419 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:45:03,423 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:45:03,424 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:45:03,425 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:45:03,425 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2019-10-13 19:45:03,498 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdb8682de/d05d110a2e164e15bf79b2f19b6a1629/FLAGa1d65b7a4 [2019-10-13 19:45:04,100 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:45:04,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2019-10-13 19:45:04,117 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdb8682de/d05d110a2e164e15bf79b2f19b6a1629/FLAGa1d65b7a4 [2019-10-13 19:45:04,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdb8682de/d05d110a2e164e15bf79b2f19b6a1629 [2019-10-13 19:45:04,334 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:45:04,336 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:45:04,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:45:04,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:45:04,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:45:04,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:45:04" (1/1) ... [2019-10-13 19:45:04,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cee117d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:04, skipping insertion in model container [2019-10-13 19:45:04,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:45:04" (1/1) ... [2019-10-13 19:45:04,352 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:45:04,422 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:45:05,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:45:05,058 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:45:05,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:45:05,577 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:45:05,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:05 WrapperNode [2019-10-13 19:45:05,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:45:05,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:45:05,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:45:05,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:45:05,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:05" (1/1) ... [2019-10-13 19:45:05,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:05" (1/1) ... [2019-10-13 19:45:05,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:05" (1/1) ... [2019-10-13 19:45:05,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:05" (1/1) ... [2019-10-13 19:45:05,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:05" (1/1) ... [2019-10-13 19:45:05,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:05" (1/1) ... [2019-10-13 19:45:05,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:05" (1/1) ... [2019-10-13 19:45:05,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:45:05,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:45:05,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:45:05,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:45:05,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:45:05,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:45:05,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:45:05,811 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:45:05,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:45:05,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-13 19:45:05,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 19:45:05,813 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-13 19:45:05,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:45:05,814 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-10-13 19:45:05,814 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-10-13 19:45:05,814 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-10-13 19:45:05,814 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-10-13 19:45:05,815 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-10-13 19:45:05,815 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-13 19:45:05,816 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-13 19:45:05,816 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:45:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:45:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:45:07,504 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:45:07,505 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 19:45:07,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:45:07 BoogieIcfgContainer [2019-10-13 19:45:07,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:45:07,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:45:07,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:45:07,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:45:07,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:45:04" (1/3) ... [2019-10-13 19:45:07,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b47d832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:45:07, skipping insertion in model container [2019-10-13 19:45:07,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:05" (2/3) ... [2019-10-13 19:45:07,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b47d832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:45:07, skipping insertion in model container [2019-10-13 19:45:07,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:45:07" (3/3) ... [2019-10-13 19:45:07,517 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2019-10-13 19:45:07,528 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:45:07,538 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-10-13 19:45:07,551 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-10-13 19:45:07,582 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:45:07,583 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:45:07,583 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:45:07,583 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:45:07,583 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:45:07,584 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:45:07,584 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:45:07,584 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:45:07,613 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states. [2019-10-13 19:45:07,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-13 19:45:07,630 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:45:07,631 INFO L380 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, 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, 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, 1, 1, 1, 1, 1] [2019-10-13 19:45:07,633 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:45:07,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:45:07,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1111774015, now seen corresponding path program 1 times [2019-10-13 19:45:07,651 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:45:07,651 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454021345] [2019-10-13 19:45:07,652 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:07,652 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:07,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:45:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:08,863 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:45:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:08,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:45:08,937 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454021345] [2019-10-13 19:45:08,938 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:45:08,938 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:45:08,939 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803088785] [2019-10-13 19:45:08,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:45:08,946 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:45:08,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:45:08,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:45:08,963 INFO L87 Difference]: Start difference. First operand 382 states. Second operand 5 states. [2019-10-13 19:45:12,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:45:12,807 INFO L93 Difference]: Finished difference Result 1107 states and 1990 transitions. [2019-10-13 19:45:12,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 19:45:12,810 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2019-10-13 19:45:12,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:45:12,833 INFO L225 Difference]: With dead ends: 1107 [2019-10-13 19:45:12,833 INFO L226 Difference]: Without dead ends: 730 [2019-10-13 19:45:12,839 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:45:12,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2019-10-13 19:45:12,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 705. [2019-10-13 19:45:12,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2019-10-13 19:45:12,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 1008 transitions. [2019-10-13 19:45:12,962 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 1008 transitions. Word has length 143 [2019-10-13 19:45:12,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:45:12,963 INFO L462 AbstractCegarLoop]: Abstraction has 705 states and 1008 transitions. [2019-10-13 19:45:12,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:45:12,963 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 1008 transitions. [2019-10-13 19:45:12,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-13 19:45:12,969 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:45:12,969 INFO L380 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, 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, 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, 1, 1, 1, 1, 1, 1] [2019-10-13 19:45:12,970 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:45:12,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:45:12,970 INFO L82 PathProgramCache]: Analyzing trace with hash 25365273, now seen corresponding path program 1 times [2019-10-13 19:45:12,971 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:45:12,971 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137442482] [2019-10-13 19:45:12,971 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:12,971 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:12,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:45:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:13,357 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:45:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:13,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:45:13,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137442482] [2019-10-13 19:45:13,394 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:45:13,394 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:45:13,395 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773126879] [2019-10-13 19:45:13,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:45:13,397 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:45:13,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:45:13,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:45:13,398 INFO L87 Difference]: Start difference. First operand 705 states and 1008 transitions. Second operand 4 states. [2019-10-13 19:45:16,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:45:16,617 INFO L93 Difference]: Finished difference Result 2069 states and 2954 transitions. [2019-10-13 19:45:16,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:45:16,618 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 144 [2019-10-13 19:45:16,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:45:16,628 INFO L225 Difference]: With dead ends: 2069 [2019-10-13 19:45:16,628 INFO L226 Difference]: Without dead ends: 1396 [2019-10-13 19:45:16,642 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:45:16,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2019-10-13 19:45:16,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 707. [2019-10-13 19:45:16,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2019-10-13 19:45:16,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 1010 transitions. [2019-10-13 19:45:16,701 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 1010 transitions. Word has length 144 [2019-10-13 19:45:16,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:45:16,704 INFO L462 AbstractCegarLoop]: Abstraction has 707 states and 1010 transitions. [2019-10-13 19:45:16,704 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:45:16,705 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 1010 transitions. [2019-10-13 19:45:16,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-13 19:45:16,710 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:45:16,710 INFO L380 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, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:45:16,711 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:45:16,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:45:16,712 INFO L82 PathProgramCache]: Analyzing trace with hash 166703234, now seen corresponding path program 1 times [2019-10-13 19:45:16,712 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:45:16,713 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38743743] [2019-10-13 19:45:16,713 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:16,713 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:16,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:45:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:17,200 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:45:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:17,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:45:17,270 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38743743] [2019-10-13 19:45:17,270 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:45:17,270 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:45:17,271 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890950721] [2019-10-13 19:45:17,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:45:17,272 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:45:17,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:45:17,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:45:17,277 INFO L87 Difference]: Start difference. First operand 707 states and 1010 transitions. Second operand 4 states. [2019-10-13 19:45:20,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:45:20,537 INFO L93 Difference]: Finished difference Result 1893 states and 2715 transitions. [2019-10-13 19:45:20,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:45:20,538 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 145 [2019-10-13 19:45:20,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:45:20,546 INFO L225 Difference]: With dead ends: 1893 [2019-10-13 19:45:20,547 INFO L226 Difference]: Without dead ends: 1368 [2019-10-13 19:45:20,549 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:45:20,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2019-10-13 19:45:20,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1343. [2019-10-13 19:45:20,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1343 states. [2019-10-13 19:45:20,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 1911 transitions. [2019-10-13 19:45:20,611 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 1911 transitions. Word has length 145 [2019-10-13 19:45:20,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:45:20,611 INFO L462 AbstractCegarLoop]: Abstraction has 1343 states and 1911 transitions. [2019-10-13 19:45:20,611 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:45:20,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 1911 transitions. [2019-10-13 19:45:20,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-13 19:45:20,615 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:45:20,615 INFO L380 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, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:45:20,616 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:45:20,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:45:20,616 INFO L82 PathProgramCache]: Analyzing trace with hash 271175045, now seen corresponding path program 1 times [2019-10-13 19:45:20,616 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:45:20,617 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685679016] [2019-10-13 19:45:20,617 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:20,617 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:20,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:45:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:21,169 WARN L191 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:45:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:21,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:45:21,234 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685679016] [2019-10-13 19:45:21,235 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:45:21,235 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:45:21,235 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306480939] [2019-10-13 19:45:21,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:45:21,236 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:45:21,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:45:21,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:45:21,238 INFO L87 Difference]: Start difference. First operand 1343 states and 1911 transitions. Second operand 5 states. [2019-10-13 19:45:22,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:45:22,743 INFO L93 Difference]: Finished difference Result 2201 states and 3141 transitions. [2019-10-13 19:45:22,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:45:22,744 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2019-10-13 19:45:22,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:45:22,752 INFO L225 Difference]: With dead ends: 2201 [2019-10-13 19:45:22,752 INFO L226 Difference]: Without dead ends: 1030 [2019-10-13 19:45:22,756 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:45:22,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2019-10-13 19:45:22,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1030. [2019-10-13 19:45:22,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1030 states. [2019-10-13 19:45:22,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1457 transitions. [2019-10-13 19:45:22,834 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1457 transitions. Word has length 145 [2019-10-13 19:45:22,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:45:22,834 INFO L462 AbstractCegarLoop]: Abstraction has 1030 states and 1457 transitions. [2019-10-13 19:45:22,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:45:22,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1457 transitions. [2019-10-13 19:45:22,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-13 19:45:22,837 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:45:22,838 INFO L380 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:45:22,838 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:45:22,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:45:22,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1646821595, now seen corresponding path program 1 times [2019-10-13 19:45:22,839 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:45:22,839 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972433599] [2019-10-13 19:45:22,839 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:22,839 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:22,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:45:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:23,386 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:45:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:23,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:45:23,485 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972433599] [2019-10-13 19:45:23,485 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:45:23,485 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:45:23,485 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446481942] [2019-10-13 19:45:23,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:45:23,486 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:45:23,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:45:23,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:45:23,487 INFO L87 Difference]: Start difference. First operand 1030 states and 1457 transitions. Second operand 10 states. [2019-10-13 19:45:23,825 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:45:25,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:45:25,995 INFO L93 Difference]: Finished difference Result 2677 states and 3904 transitions. [2019-10-13 19:45:26,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:45:26,002 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 151 [2019-10-13 19:45:26,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:45:26,011 INFO L225 Difference]: With dead ends: 2677 [2019-10-13 19:45:26,012 INFO L226 Difference]: Without dead ends: 1818 [2019-10-13 19:45:26,014 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:45:26,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2019-10-13 19:45:26,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1496. [2019-10-13 19:45:26,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1496 states. [2019-10-13 19:45:26,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 2138 transitions. [2019-10-13 19:45:26,090 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 2138 transitions. Word has length 151 [2019-10-13 19:45:26,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:45:26,090 INFO L462 AbstractCegarLoop]: Abstraction has 1496 states and 2138 transitions. [2019-10-13 19:45:26,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:45:26,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 2138 transitions. [2019-10-13 19:45:26,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-13 19:45:26,094 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:45:26,095 INFO L380 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:45:26,095 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:45:26,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:45:26,096 INFO L82 PathProgramCache]: Analyzing trace with hash 154501339, now seen corresponding path program 1 times [2019-10-13 19:45:26,096 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:45:26,097 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916600525] [2019-10-13 19:45:26,097 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:26,097 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:26,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:45:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:26,484 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:45:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:26,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:45:26,571 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916600525] [2019-10-13 19:45:26,572 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:45:26,573 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:45:26,573 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064531198] [2019-10-13 19:45:26,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:45:26,583 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:45:26,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:45:26,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:45:26,585 INFO L87 Difference]: Start difference. First operand 1496 states and 2138 transitions. Second operand 5 states. [2019-10-13 19:45:26,853 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-13 19:45:28,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:45:28,404 INFO L93 Difference]: Finished difference Result 2950 states and 4367 transitions. [2019-10-13 19:45:28,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 19:45:28,404 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2019-10-13 19:45:28,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:45:28,416 INFO L225 Difference]: With dead ends: 2950 [2019-10-13 19:45:28,416 INFO L226 Difference]: Without dead ends: 2430 [2019-10-13 19:45:28,419 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:45:28,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2019-10-13 19:45:28,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 2428. [2019-10-13 19:45:28,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2428 states. [2019-10-13 19:45:28,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3512 transitions. [2019-10-13 19:45:28,539 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3512 transitions. Word has length 151 [2019-10-13 19:45:28,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:45:28,541 INFO L462 AbstractCegarLoop]: Abstraction has 2428 states and 3512 transitions. [2019-10-13 19:45:28,541 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:45:28,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3512 transitions. [2019-10-13 19:45:28,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-13 19:45:28,547 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:45:28,547 INFO L380 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:45:28,547 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:45:28,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:45:28,548 INFO L82 PathProgramCache]: Analyzing trace with hash 2031358202, now seen corresponding path program 1 times [2019-10-13 19:45:28,548 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:45:28,548 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474230744] [2019-10-13 19:45:28,548 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:28,549 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:28,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:45:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:29,023 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:45:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:29,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:45:29,070 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474230744] [2019-10-13 19:45:29,070 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:45:29,070 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:45:29,070 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157282212] [2019-10-13 19:45:29,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:45:29,072 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:45:29,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:45:29,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:45:29,073 INFO L87 Difference]: Start difference. First operand 2428 states and 3512 transitions. Second operand 5 states. [2019-10-13 19:45:31,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:45:31,743 INFO L93 Difference]: Finished difference Result 6277 states and 9070 transitions. [2019-10-13 19:45:31,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:45:31,744 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 151 [2019-10-13 19:45:31,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:45:31,761 INFO L225 Difference]: With dead ends: 6277 [2019-10-13 19:45:31,761 INFO L226 Difference]: Without dead ends: 3872 [2019-10-13 19:45:31,766 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:45:31,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3872 states. [2019-10-13 19:45:31,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3872 to 3850. [2019-10-13 19:45:31,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3850 states. [2019-10-13 19:45:31,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 5507 transitions. [2019-10-13 19:45:31,988 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 5507 transitions. Word has length 151 [2019-10-13 19:45:31,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:45:31,988 INFO L462 AbstractCegarLoop]: Abstraction has 3850 states and 5507 transitions. [2019-10-13 19:45:31,988 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:45:31,988 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 5507 transitions. [2019-10-13 19:45:31,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-13 19:45:31,996 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:45:31,997 INFO L380 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:45:31,997 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:45:31,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:45:31,998 INFO L82 PathProgramCache]: Analyzing trace with hash 30760331, now seen corresponding path program 1 times [2019-10-13 19:45:31,998 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:45:31,998 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745187168] [2019-10-13 19:45:31,999 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:31,999 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:31,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:45:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:32,341 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:45:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:32,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:45:32,387 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745187168] [2019-10-13 19:45:32,387 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:45:32,387 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:45:32,388 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782020466] [2019-10-13 19:45:32,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:45:32,389 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:45:32,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:45:32,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:45:32,390 INFO L87 Difference]: Start difference. First operand 3850 states and 5507 transitions. Second operand 4 states. [2019-10-13 19:45:35,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:45:35,193 INFO L93 Difference]: Finished difference Result 10830 states and 15529 transitions. [2019-10-13 19:45:35,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:45:35,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2019-10-13 19:45:35,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:45:35,220 INFO L225 Difference]: With dead ends: 10830 [2019-10-13 19:45:35,220 INFO L226 Difference]: Without dead ends: 7331 [2019-10-13 19:45:35,227 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:45:35,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7331 states. [2019-10-13 19:45:35,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7331 to 7311. [2019-10-13 19:45:35,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7311 states. [2019-10-13 19:45:35,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7311 states to 7311 states and 10356 transitions. [2019-10-13 19:45:35,647 INFO L78 Accepts]: Start accepts. Automaton has 7311 states and 10356 transitions. Word has length 153 [2019-10-13 19:45:35,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:45:35,648 INFO L462 AbstractCegarLoop]: Abstraction has 7311 states and 10356 transitions. [2019-10-13 19:45:35,648 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:45:35,648 INFO L276 IsEmpty]: Start isEmpty. Operand 7311 states and 10356 transitions. [2019-10-13 19:45:35,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-13 19:45:35,659 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:45:35,660 INFO L380 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:45:35,660 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:45:35,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:45:35,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1476891570, now seen corresponding path program 1 times [2019-10-13 19:45:35,661 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:45:35,661 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084427089] [2019-10-13 19:45:35,661 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:35,661 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:35,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:45:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:36,040 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:45:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:36,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:45:36,080 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084427089] [2019-10-13 19:45:36,081 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:45:36,081 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:45:36,081 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564467373] [2019-10-13 19:45:36,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:45:36,082 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:45:36,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:45:36,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:45:36,082 INFO L87 Difference]: Start difference. First operand 7311 states and 10356 transitions. Second operand 5 states. [2019-10-13 19:45:37,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:45:37,679 INFO L93 Difference]: Finished difference Result 11608 states and 16445 transitions. [2019-10-13 19:45:37,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 19:45:37,680 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 153 [2019-10-13 19:45:37,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:45:37,704 INFO L225 Difference]: With dead ends: 11608 [2019-10-13 19:45:37,705 INFO L226 Difference]: Without dead ends: 5961 [2019-10-13 19:45:37,716 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:45:37,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5961 states. [2019-10-13 19:45:37,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5961 to 5961. [2019-10-13 19:45:37,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5961 states. [2019-10-13 19:45:37,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5961 states to 5961 states and 8411 transitions. [2019-10-13 19:45:37,989 INFO L78 Accepts]: Start accepts. Automaton has 5961 states and 8411 transitions. Word has length 153 [2019-10-13 19:45:37,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:45:37,990 INFO L462 AbstractCegarLoop]: Abstraction has 5961 states and 8411 transitions. [2019-10-13 19:45:37,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:45:37,990 INFO L276 IsEmpty]: Start isEmpty. Operand 5961 states and 8411 transitions. [2019-10-13 19:45:37,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-13 19:45:38,000 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:45:38,000 INFO L380 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:45:38,000 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:45:38,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:45:38,001 INFO L82 PathProgramCache]: Analyzing trace with hash 770800706, now seen corresponding path program 1 times [2019-10-13 19:45:38,004 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:45:38,005 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491474672] [2019-10-13 19:45:38,005 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:38,005 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:45:38,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:45:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:38,574 WARN L191 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:45:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:45:38,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:45:38,623 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491474672] [2019-10-13 19:45:38,624 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:45:38,624 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:45:38,624 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766859246] [2019-10-13 19:45:38,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:45:38,625 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:45:38,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:45:38,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:45:38,625 INFO L87 Difference]: Start difference. First operand 5961 states and 8411 transitions. Second operand 9 states. [2019-10-13 19:45:38,898 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 194