/usr/bin/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 09:32:55,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 09:32:55,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 09:32:55,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 09:32:55,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 09:32:55,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 09:32:55,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 09:32:55,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 09:32:55,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 09:32:55,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 09:32:55,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 09:32:55,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 09:32:55,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 09:32:55,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 09:32:55,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 09:32:55,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 09:32:55,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 09:32:55,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 09:32:55,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 09:32:55,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 09:32:55,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 09:32:55,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 09:32:55,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 09:32:55,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 09:32:55,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 09:32:55,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 09:32:55,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 09:32:55,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 09:32:55,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 09:32:55,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 09:32:55,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 09:32:55,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 09:32:55,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 09:32:55,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 09:32:55,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 09:32:55,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 09:32:55,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 09:32:55,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 09:32:55,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 09:32:55,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 09:32:55,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 09:32:55,408 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 09:32:55,448 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 09:32:55,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 09:32:55,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 09:32:55,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 09:32:55,451 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 09:32:55,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 09:32:55,452 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 09:32:55,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 09:32:55,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 09:32:55,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 09:32:55,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 09:32:55,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 09:32:55,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 09:32:55,454 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 09:32:55,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 09:32:55,454 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 09:32:55,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 09:32:55,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 09:32:55,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 09:32:55,455 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 09:32:55,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 09:32:55,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 09:32:55,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 09:32:55,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 09:32:55,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 09:32:55,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 09:32:55,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 09:32:55,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 09:32:55,457 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 09:32:55,457 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 09:32:55,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 09:32:55,783 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 09:32:55,789 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 09:32:55,791 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 09:32:55,791 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 09:32:55,792 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-14 09:32:55,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85baef103/16603924c04c4de291e42f761055f0b3/FLAGe79e1846b [2020-10-14 09:32:56,588 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 09:32:56,589 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-14 09:32:56,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85baef103/16603924c04c4de291e42f761055f0b3/FLAGe79e1846b [2020-10-14 09:32:56,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85baef103/16603924c04c4de291e42f761055f0b3 [2020-10-14 09:32:56,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 09:32:56,716 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 09:32:56,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 09:32:56,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 09:32:56,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 09:32:56,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:32:56" (1/1) ... [2020-10-14 09:32:56,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d022c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:32:56, skipping insertion in model container [2020-10-14 09:32:56,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:32:56" (1/1) ... [2020-10-14 09:32:56,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 09:32:56,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 09:32:58,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 09:32:58,419 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 09:32:59,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 09:32:59,406 INFO L208 MainTranslator]: Completed translation [2020-10-14 09:32:59,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:32:59 WrapperNode [2020-10-14 09:32:59,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 09:32:59,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 09:32:59,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 09:32:59,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 09:32:59,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:32:59" (1/1) ... [2020-10-14 09:32:59,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:32:59" (1/1) ... [2020-10-14 09:32:59,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:32:59" (1/1) ... [2020-10-14 09:32:59,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:32:59" (1/1) ... [2020-10-14 09:32:59,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:32:59" (1/1) ... [2020-10-14 09:32:59,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:32:59" (1/1) ... [2020-10-14 09:32:59,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:32:59" (1/1) ... [2020-10-14 09:32:59,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 09:32:59,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 09:32:59,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 09:32:59,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 09:32:59,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:32:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-14 09:32:59,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 09:32:59,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 09:32:59,702 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 09:32:59,703 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 09:32:59,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 09:32:59,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 09:32:59,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 09:32:59,703 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 09:32:59,704 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 09:32:59,704 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 09:32:59,704 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 09:32:59,704 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 09:32:59,704 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 09:32:59,704 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 09:32:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 09:32:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-14 09:32:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 09:32:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 09:32:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 09:32:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 09:32:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 09:33:03,211 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 09:33:03,212 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 09:33:03,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:33:03 BoogieIcfgContainer [2020-10-14 09:33:03,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 09:33:03,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 09:33:03,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 09:33:03,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 09:33:03,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:32:56" (1/3) ... [2020-10-14 09:33:03,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a747ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:33:03, skipping insertion in model container [2020-10-14 09:33:03,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:32:59" (2/3) ... [2020-10-14 09:33:03,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a747ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:33:03, skipping insertion in model container [2020-10-14 09:33:03,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:33:03" (3/3) ... [2020-10-14 09:33:03,232 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-14 09:33:03,246 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 09:33:03,255 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-14 09:33:03,275 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-14 09:33:03,309 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 09:33:03,310 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 09:33:03,310 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 09:33:03,310 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 09:33:03,310 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 09:33:03,310 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 09:33:03,310 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 09:33:03,311 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 09:33:03,353 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states. [2020-10-14 09:33:03,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-14 09:33:03,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:33:03,389 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:33:03,395 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:33:03,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:33:03,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1499314187, now seen corresponding path program 1 times [2020-10-14 09:33:03,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:33:03,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798653145] [2020-10-14 09:33:03,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:33:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:33:04,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:05,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:05,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:06,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:06,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:07,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:07,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:07,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:07,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:08,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:08,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:08,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:08,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:09,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:09,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:33:09,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 324 [2020-10-14 09:33:09,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 09:33:09,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5114 [2020-10-14 09:33:09,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:33:09,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:33:09,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:33:09,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 09:33:09,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 214 [2020-10-14 09:33:09,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 09:33:10,366 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-14 09:33:10,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:33:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:33:10,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:10,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:33:10,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:33:10,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:33:10,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 09:33:10,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:33:10,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:33:10,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:33:10,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:33:10,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:33:10,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:33:10,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:33:10,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798653145] [2020-10-14 09:33:10,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:33:10,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:33:10,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846084031] [2020-10-14 09:33:10,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:33:10,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:33:10,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:33:10,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:33:10,642 INFO L87 Difference]: Start difference. First operand 992 states. Second operand 4 states. [2020-10-14 09:33:11,243 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 329 [2020-10-14 09:33:17,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:33:17,642 INFO L93 Difference]: Finished difference Result 1704 states and 3011 transitions. [2020-10-14 09:33:17,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:33:17,645 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 318 [2020-10-14 09:33:17,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:33:17,674 INFO L225 Difference]: With dead ends: 1704 [2020-10-14 09:33:17,675 INFO L226 Difference]: Without dead ends: 1434 [2020-10-14 09:33:17,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:33:17,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2020-10-14 09:33:17,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1432. [2020-10-14 09:33:17,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1432 states. [2020-10-14 09:33:17,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2204 transitions. [2020-10-14 09:33:17,855 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2204 transitions. Word has length 318 [2020-10-14 09:33:17,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:33:17,860 INFO L479 AbstractCegarLoop]: Abstraction has 1432 states and 2204 transitions. [2020-10-14 09:33:17,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:33:17,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2204 transitions. [2020-10-14 09:33:17,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-14 09:33:17,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:33:17,875 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:33:17,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 09:33:17,885 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:33:17,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:33:17,886 INFO L82 PathProgramCache]: Analyzing trace with hash 545473170, now seen corresponding path program 1 times [2020-10-14 09:33:17,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:33:17,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137935533] [2020-10-14 09:33:17,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:33:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:33:18,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:19,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:19,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:19,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:20,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:20,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:20,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:20,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:20,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:21,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:21,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:21,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:21,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:23,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:33:23,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 324 [2020-10-14 09:33:23,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-14 09:33:23,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-14 09:33:23,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:33:23,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:33:23,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 09:33:23,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 09:33:23,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-14 09:33:23,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 09:33:24,481 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-14 09:33:24,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:33:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:33:24,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:24,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:33:24,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:33:24,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:33:24,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 09:33:24,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:33:24,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:33:24,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:33:24,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:33:24,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:33:24,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:33:24,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:33:24,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137935533] [2020-10-14 09:33:24,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:33:24,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 09:33:24,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536057101] [2020-10-14 09:33:24,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 09:33:24,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:33:24,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 09:33:24,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:33:24,809 INFO L87 Difference]: Start difference. First operand 1432 states and 2204 transitions. Second operand 5 states. [2020-10-14 09:33:35,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:33:35,249 INFO L93 Difference]: Finished difference Result 4224 states and 6495 transitions. [2020-10-14 09:33:35,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:33:35,250 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 318 [2020-10-14 09:33:35,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:33:35,266 INFO L225 Difference]: With dead ends: 4224 [2020-10-14 09:33:35,266 INFO L226 Difference]: Without dead ends: 2805 [2020-10-14 09:33:35,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 09:33:35,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2805 states. [2020-10-14 09:33:35,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2805 to 2712. [2020-10-14 09:33:35,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2712 states. [2020-10-14 09:33:35,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2712 states to 2712 states and 4173 transitions. [2020-10-14 09:33:35,393 INFO L78 Accepts]: Start accepts. Automaton has 2712 states and 4173 transitions. Word has length 318 [2020-10-14 09:33:35,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:33:35,393 INFO L479 AbstractCegarLoop]: Abstraction has 2712 states and 4173 transitions. [2020-10-14 09:33:35,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 09:33:35,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2712 states and 4173 transitions. [2020-10-14 09:33:35,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-14 09:33:35,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:33:35,402 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:33:35,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 09:33:35,403 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:33:35,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:33:35,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1386381505, now seen corresponding path program 1 times [2020-10-14 09:33:35,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:33:35,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913904853] [2020-10-14 09:33:35,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:33:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:33:35,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:35,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:35,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:36,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:36,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:36,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:36,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:36,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:37,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:37,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:37,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:37,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:38,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:38,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:38,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:40,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:33:40,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-14 09:33:40,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-14 09:33:40,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 09:33:40,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:33:40,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:33:40,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:33:40,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 09:33:40,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 09:33:40,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:33:41,243 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-14 09:33:41,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:33:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:33:41,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:41,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:33:41,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:33:41,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:33:41,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 09:33:41,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:33:41,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:33:41,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:33:41,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:33:41,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:33:41,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:33:41,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:33:41,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913904853] [2020-10-14 09:33:41,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:33:41,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:33:41,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425616686] [2020-10-14 09:33:41,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:33:41,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:33:41,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:33:41,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:33:41,543 INFO L87 Difference]: Start difference. First operand 2712 states and 4173 transitions. Second operand 4 states. [2020-10-14 09:33:51,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:33:51,933 INFO L93 Difference]: Finished difference Result 7881 states and 12080 transitions. [2020-10-14 09:33:51,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:33:51,934 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 320 [2020-10-14 09:33:51,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:33:51,963 INFO L225 Difference]: With dead ends: 7881 [2020-10-14 09:33:51,963 INFO L226 Difference]: Without dead ends: 5309 [2020-10-14 09:33:51,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:33:51,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5309 states. [2020-10-14 09:33:52,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5309 to 5218. [2020-10-14 09:33:52,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5218 states. [2020-10-14 09:33:52,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5218 states to 5218 states and 8006 transitions. [2020-10-14 09:33:52,241 INFO L78 Accepts]: Start accepts. Automaton has 5218 states and 8006 transitions. Word has length 320 [2020-10-14 09:33:52,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:33:52,244 INFO L479 AbstractCegarLoop]: Abstraction has 5218 states and 8006 transitions. [2020-10-14 09:33:52,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:33:52,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5218 states and 8006 transitions. [2020-10-14 09:33:52,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-14 09:33:52,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:33:52,261 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:33:52,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 09:33:52,262 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:33:52,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:33:52,263 INFO L82 PathProgramCache]: Analyzing trace with hash 226893764, now seen corresponding path program 1 times [2020-10-14 09:33:52,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:33:52,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391788974] [2020-10-14 09:33:52,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:33:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:33:52,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:52,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:52,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:52,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:53,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:53,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:53,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:53,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:53,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:54,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:54,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:54,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:54,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:55,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:55,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:55,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:57,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:33:57,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-14 09:33:57,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 09:33:57,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 09:33:57,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:33:57,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:33:57,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:33:57,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 09:33:57,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 09:33:57,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:33:57,975 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-14 09:33:57,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:33:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:33:57,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:33:57,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:33:57,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:33:57,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:33:57,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 09:33:57,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:33:57,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:33:57,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:33:57,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:33:57,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:33:58,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:33:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:33:58,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391788974] [2020-10-14 09:33:58,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:33:58,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:33:58,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262985817] [2020-10-14 09:33:58,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:33:58,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:33:58,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:33:58,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:33:58,105 INFO L87 Difference]: Start difference. First operand 5218 states and 8006 transitions. Second operand 4 states. [2020-10-14 09:34:03,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:34:03,989 INFO L93 Difference]: Finished difference Result 15495 states and 23742 transitions. [2020-10-14 09:34:03,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:34:03,990 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 320 [2020-10-14 09:34:03,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:34:04,034 INFO L225 Difference]: With dead ends: 15495 [2020-10-14 09:34:04,034 INFO L226 Difference]: Without dead ends: 10304 [2020-10-14 09:34:04,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:34:04,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10304 states. [2020-10-14 09:34:04,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10304 to 5229. [2020-10-14 09:34:04,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5229 states. [2020-10-14 09:34:04,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 8021 transitions. [2020-10-14 09:34:04,286 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 8021 transitions. Word has length 320 [2020-10-14 09:34:04,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:34:04,287 INFO L479 AbstractCegarLoop]: Abstraction has 5229 states and 8021 transitions. [2020-10-14 09:34:04,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:34:04,287 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 8021 transitions. [2020-10-14 09:34:04,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-10-14 09:34:04,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:34:04,299 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:34:04,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 09:34:04,300 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:34:04,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:34:04,300 INFO L82 PathProgramCache]: Analyzing trace with hash -715468627, now seen corresponding path program 1 times [2020-10-14 09:34:04,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:34:04,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911362686] [2020-10-14 09:34:04,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:34:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:34:04,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:04,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:04,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:04,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:05,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:05,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:05,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:05,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:05,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:05,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:05,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:06,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:06,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:06,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:09,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:34:09,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 327 [2020-10-14 09:34:09,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-14 09:34:09,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 09:34:09,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:34:09,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:34:09,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:34:09,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 09:34:09,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 09:34:09,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:34:09,925 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-14 09:34:09,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:34:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:34:09,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:09,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:34:09,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:34:09,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:34:09,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 09:34:09,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:34:09,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:34:09,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:34:09,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:34:09,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:34:09,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:34:10,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:34:10,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911362686] [2020-10-14 09:34:10,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:34:10,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:34:10,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104087582] [2020-10-14 09:34:10,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:34:10,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:34:10,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:34:10,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:34:10,033 INFO L87 Difference]: Start difference. First operand 5229 states and 8021 transitions. Second operand 4 states. [2020-10-14 09:34:20,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:34:20,618 INFO L93 Difference]: Finished difference Result 15592 states and 23909 transitions. [2020-10-14 09:34:20,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:34:20,619 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 321 [2020-10-14 09:34:20,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:34:20,652 INFO L225 Difference]: With dead ends: 15592 [2020-10-14 09:34:20,652 INFO L226 Difference]: Without dead ends: 10413 [2020-10-14 09:34:20,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:34:20,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10413 states. [2020-10-14 09:34:21,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10413 to 5245. [2020-10-14 09:34:21,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5245 states. [2020-10-14 09:34:21,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 8040 transitions. [2020-10-14 09:34:21,045 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 8040 transitions. Word has length 321 [2020-10-14 09:34:21,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:34:21,045 INFO L479 AbstractCegarLoop]: Abstraction has 5245 states and 8040 transitions. [2020-10-14 09:34:21,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:34:21,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 8040 transitions. [2020-10-14 09:34:21,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-10-14 09:34:21,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:34:21,063 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:34:21,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 09:34:21,063 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:34:21,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:34:21,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1521591497, now seen corresponding path program 1 times [2020-10-14 09:34:21,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:34:21,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222221411] [2020-10-14 09:34:21,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:34:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:34:21,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:21,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:22,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:22,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:22,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:22,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:22,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:22,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:22,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:22,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:22,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:22,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:22,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:23,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:23,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:24,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:24,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:26,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:34:26,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 328 [2020-10-14 09:34:26,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 09:34:26,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 09:34:26,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:34:26,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:34:26,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 09:34:26,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 09:34:26,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-14 09:34:26,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 09:34:26,926 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-14 09:34:26,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:34:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:34:26,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:26,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:34:26,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:34:26,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:34:26,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 09:34:26,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:34:26,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:34:26,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:34:26,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:34:26,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:34:26,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:34:27,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:34:27,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222221411] [2020-10-14 09:34:27,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:34:27,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 09:34:27,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344917516] [2020-10-14 09:34:27,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 09:34:27,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:34:27,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 09:34:27,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:34:27,063 INFO L87 Difference]: Start difference. First operand 5245 states and 8040 transitions. Second operand 5 states. [2020-10-14 09:34:36,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:34:36,375 INFO L93 Difference]: Finished difference Result 15216 states and 23247 transitions. [2020-10-14 09:34:36,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:34:36,376 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 322 [2020-10-14 09:34:36,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:34:36,398 INFO L225 Difference]: With dead ends: 15216 [2020-10-14 09:34:36,398 INFO L226 Difference]: Without dead ends: 10148 [2020-10-14 09:34:36,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 09:34:36,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10148 states. [2020-10-14 09:34:36,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10148 to 10044. [2020-10-14 09:34:36,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10044 states. [2020-10-14 09:34:36,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10044 states to 10044 states and 15301 transitions. [2020-10-14 09:34:36,844 INFO L78 Accepts]: Start accepts. Automaton has 10044 states and 15301 transitions. Word has length 322 [2020-10-14 09:34:36,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:34:36,845 INFO L479 AbstractCegarLoop]: Abstraction has 10044 states and 15301 transitions. [2020-10-14 09:34:36,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 09:34:36,845 INFO L276 IsEmpty]: Start isEmpty. Operand 10044 states and 15301 transitions. [2020-10-14 09:34:36,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-14 09:34:36,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:34:36,868 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:34:36,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 09:34:36,869 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:34:36,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:34:36,869 INFO L82 PathProgramCache]: Analyzing trace with hash -654469424, now seen corresponding path program 1 times [2020-10-14 09:34:36,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:34:36,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1612634012] [2020-10-14 09:34:36,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:34:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:34:37,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:37,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:37,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:37,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:37,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:37,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:37,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:38,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:38,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:38,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:38,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:38,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:38,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:38,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:38,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:39,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:41,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:34:41,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 09:34:41,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 09:34:41,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 09:34:41,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:34:41,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:34:41,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:34:41,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 09:34:41,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-14 09:34:41,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:34:42,601 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-14 09:34:42,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:34:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:34:42,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:42,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:34:42,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:34:42,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:34:42,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 09:34:42,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:34:42,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:34:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:34:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:34:42,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:34:42,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:34:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:34:42,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1612634012] [2020-10-14 09:34:42,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:34:42,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:34:42,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747967847] [2020-10-14 09:34:42,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:34:42,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:34:42,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:34:42,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:34:42,751 INFO L87 Difference]: Start difference. First operand 10044 states and 15301 transitions. Second operand 4 states. [2020-10-14 09:34:53,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:34:53,783 INFO L93 Difference]: Finished difference Result 29509 states and 44859 transitions. [2020-10-14 09:34:53,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:34:53,784 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 324 [2020-10-14 09:34:53,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:34:53,824 INFO L225 Difference]: With dead ends: 29509 [2020-10-14 09:34:53,824 INFO L226 Difference]: Without dead ends: 19713 [2020-10-14 09:34:53,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:34:53,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19713 states. [2020-10-14 09:34:54,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19713 to 19609. [2020-10-14 09:34:54,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19609 states. [2020-10-14 09:34:54,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19609 states to 19609 states and 29712 transitions. [2020-10-14 09:34:54,524 INFO L78 Accepts]: Start accepts. Automaton has 19609 states and 29712 transitions. Word has length 324 [2020-10-14 09:34:54,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:34:54,525 INFO L479 AbstractCegarLoop]: Abstraction has 19609 states and 29712 transitions. [2020-10-14 09:34:54,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:34:54,525 INFO L276 IsEmpty]: Start isEmpty. Operand 19609 states and 29712 transitions. [2020-10-14 09:34:54,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-14 09:34:54,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:34:54,557 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:34:54,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 09:34:54,558 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:34:54,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:34:54,558 INFO L82 PathProgramCache]: Analyzing trace with hash -347038445, now seen corresponding path program 1 times [2020-10-14 09:34:54,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:34:54,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477417688] [2020-10-14 09:34:54,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:34:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:34:54,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:55,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:55,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:55,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:56,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:56,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:56,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:56,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:56,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:56,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:56,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:56,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:56,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:56,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:57,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:57,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:34:59,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:34:59,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 09:34:59,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 09:34:59,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 09:34:59,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:34:59,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:34:59,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 09:34:59,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 09:34:59,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 09:34:59,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:35:00,486 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-14 09:35:00,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:35:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:35:00,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:00,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:35:00,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:35:00,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:35:00,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 09:35:00,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:35:00,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:35:00,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:35:00,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:35:00,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:35:00,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:35:00,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:35:00,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477417688] [2020-10-14 09:35:00,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:35:00,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 09:35:00,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328273083] [2020-10-14 09:35:00,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 09:35:00,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:35:00,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 09:35:00,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:35:00,662 INFO L87 Difference]: Start difference. First operand 19609 states and 29712 transitions. Second operand 5 states. [2020-10-14 09:35:10,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:35:10,745 INFO L93 Difference]: Finished difference Result 57704 states and 87252 transitions. [2020-10-14 09:35:10,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:35:10,746 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 324 [2020-10-14 09:35:10,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:35:10,815 INFO L225 Difference]: With dead ends: 57704 [2020-10-14 09:35:10,815 INFO L226 Difference]: Without dead ends: 38162 [2020-10-14 09:35:10,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 09:35:10,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38162 states. [2020-10-14 09:35:13,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38162 to 38088. [2020-10-14 09:35:13,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38088 states. [2020-10-14 09:35:13,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38088 states to 38088 states and 57215 transitions. [2020-10-14 09:35:13,452 INFO L78 Accepts]: Start accepts. Automaton has 38088 states and 57215 transitions. Word has length 324 [2020-10-14 09:35:13,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:35:13,452 INFO L479 AbstractCegarLoop]: Abstraction has 38088 states and 57215 transitions. [2020-10-14 09:35:13,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 09:35:13,452 INFO L276 IsEmpty]: Start isEmpty. Operand 38088 states and 57215 transitions. [2020-10-14 09:35:13,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-14 09:35:13,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:35:13,492 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:35:13,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 09:35:13,493 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:35:13,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:35:13,493 INFO L82 PathProgramCache]: Analyzing trace with hash -177319512, now seen corresponding path program 1 times [2020-10-14 09:35:13,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:35:13,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822157359] [2020-10-14 09:35:13,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:35:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:35:13,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:13,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:14,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:14,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:14,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:14,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:14,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:14,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:14,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:14,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:15,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:15,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:15,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:15,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:15,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:17,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:18,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:18,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:35:18,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 09:35:18,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-14 09:35:18,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 09:35:18,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:35:18,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:35:18,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 09:35:18,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 09:35:18,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-14 09:35:18,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:35:19,349 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-14 09:35:19,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:35:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:35:19,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:19,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:35:19,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:35:19,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:35:19,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 09:35:19,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:35:19,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:35:19,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:35:19,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:35:19,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:35:19,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:35:19,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:35:19,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822157359] [2020-10-14 09:35:19,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:35:19,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 09:35:19,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286886552] [2020-10-14 09:35:19,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 09:35:19,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:35:19,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 09:35:19,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 09:35:19,640 INFO L87 Difference]: Start difference. First operand 38088 states and 57215 transitions. Second operand 5 states. [2020-10-14 09:35:30,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:35:30,426 INFO L93 Difference]: Finished difference Result 78965 states and 118643 transitions. [2020-10-14 09:35:30,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 09:35:30,426 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 324 [2020-10-14 09:35:30,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:35:30,482 INFO L225 Difference]: With dead ends: 78965 [2020-10-14 09:35:30,483 INFO L226 Difference]: Without dead ends: 41075 [2020-10-14 09:35:30,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 09:35:30,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41075 states. [2020-10-14 09:35:31,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41075 to 38379. [2020-10-14 09:35:31,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38379 states. [2020-10-14 09:35:31,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38379 states to 38379 states and 57695 transitions. [2020-10-14 09:35:31,943 INFO L78 Accepts]: Start accepts. Automaton has 38379 states and 57695 transitions. Word has length 324 [2020-10-14 09:35:31,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:35:31,943 INFO L479 AbstractCegarLoop]: Abstraction has 38379 states and 57695 transitions. [2020-10-14 09:35:31,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 09:35:31,943 INFO L276 IsEmpty]: Start isEmpty. Operand 38379 states and 57695 transitions. [2020-10-14 09:35:31,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-14 09:35:31,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:35:31,973 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:35:31,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 09:35:31,973 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:35:31,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:35:31,974 INFO L82 PathProgramCache]: Analyzing trace with hash 425111953, now seen corresponding path program 1 times [2020-10-14 09:35:31,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:35:31,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259924223] [2020-10-14 09:35:31,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:35:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:35:32,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:32,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:32,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:32,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:32,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:32,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:32,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:34,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:34,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:34,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:34,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:34,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:34,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:34,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:35,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:35,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:37,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:35:37,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 332 [2020-10-14 09:35:37,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 09:35:37,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 09:35:37,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:35:37,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:35:37,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:35:37,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 09:35:37,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 09:35:37,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:35:37,611 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-14 09:35:37,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:35:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:35:37,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:37,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:35:37,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:35:37,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:35:37,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 09:35:37,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:35:37,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:35:37,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:35:37,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:35:37,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:35:37,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:35:37,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:35:37,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259924223] [2020-10-14 09:35:37,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:35:37,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:35:37,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188767785] [2020-10-14 09:35:37,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:35:37,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:35:37,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:35:37,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:35:37,693 INFO L87 Difference]: Start difference. First operand 38379 states and 57695 transitions. Second operand 4 states. [2020-10-14 09:35:46,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:35:46,360 INFO L93 Difference]: Finished difference Result 114513 states and 172101 transitions. [2020-10-14 09:35:46,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:35:46,361 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 326 [2020-10-14 09:35:46,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:35:46,445 INFO L225 Difference]: With dead ends: 114513 [2020-10-14 09:35:46,446 INFO L226 Difference]: Without dead ends: 76442 [2020-10-14 09:35:46,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:35:46,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76442 states. [2020-10-14 09:35:48,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76442 to 38484. [2020-10-14 09:35:48,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38484 states. [2020-10-14 09:35:49,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38484 states to 38484 states and 57834 transitions. [2020-10-14 09:35:49,963 INFO L78 Accepts]: Start accepts. Automaton has 38484 states and 57834 transitions. Word has length 326 [2020-10-14 09:35:49,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:35:49,963 INFO L479 AbstractCegarLoop]: Abstraction has 38484 states and 57834 transitions. [2020-10-14 09:35:49,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:35:49,963 INFO L276 IsEmpty]: Start isEmpty. Operand 38484 states and 57834 transitions. [2020-10-14 09:35:49,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-14 09:35:49,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:35:49,998 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:35:49,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 09:35:49,998 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:35:50,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:35:50,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1628208634, now seen corresponding path program 1 times [2020-10-14 09:35:50,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:35:50,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1568294657] [2020-10-14 09:35:50,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:35:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:35:50,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:50,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:50,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:50,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:50,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:52,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:52,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:52,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:52,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:52,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:52,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:52,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:52,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:53,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:53,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:53,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:55,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:35:55,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 333 [2020-10-14 09:35:55,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 09:35:55,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 09:35:55,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:35:55,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:35:55,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:35:55,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 09:35:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 09:35:55,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:35:55,651 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-14 09:35:55,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:35:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:35:55,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:35:55,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:35:55,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:35:55,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:35:55,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 09:35:55,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:35:55,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:35:55,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:35:55,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:35:55,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:35:55,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:35:55,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:35:55,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1568294657] [2020-10-14 09:35:55,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:35:55,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:35:55,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627354599] [2020-10-14 09:35:55,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:35:55,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:35:55,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:35:55,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:35:55,752 INFO L87 Difference]: Start difference. First operand 38484 states and 57834 transitions. Second operand 4 states. [2020-10-14 09:36:10,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:36:10,397 INFO L93 Difference]: Finished difference Result 114652 states and 172276 transitions. [2020-10-14 09:36:10,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:36:10,398 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 327 [2020-10-14 09:36:10,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:36:10,466 INFO L225 Difference]: With dead ends: 114652 [2020-10-14 09:36:10,467 INFO L226 Difference]: Without dead ends: 76593 [2020-10-14 09:36:10,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:36:10,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76593 states. [2020-10-14 09:36:12,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76593 to 38635. [2020-10-14 09:36:12,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38635 states. [2020-10-14 09:36:12,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38635 states to 38635 states and 58013 transitions. [2020-10-14 09:36:12,445 INFO L78 Accepts]: Start accepts. Automaton has 38635 states and 58013 transitions. Word has length 327 [2020-10-14 09:36:12,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:36:12,445 INFO L479 AbstractCegarLoop]: Abstraction has 38635 states and 58013 transitions. [2020-10-14 09:36:12,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:36:12,445 INFO L276 IsEmpty]: Start isEmpty. Operand 38635 states and 58013 transitions. [2020-10-14 09:36:12,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-10-14 09:36:12,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:36:12,482 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:36:12,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 09:36:12,483 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:36:12,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:36:12,483 INFO L82 PathProgramCache]: Analyzing trace with hash 260968871, now seen corresponding path program 1 times [2020-10-14 09:36:12,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:36:12,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740334968] [2020-10-14 09:36:12,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:36:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:36:12,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:12,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:12,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:12,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:12,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:12,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:13,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:13,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:13,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:13,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:13,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:13,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:16,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:16,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:16,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:17,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:17,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:36:17,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-10-14 09:36:17,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-14 09:36:17,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 09:36:17,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:36:17,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:36:17,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 09:36:17,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-14 09:36:17,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 215 [2020-10-14 09:36:17,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:36:18,244 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2020-10-14 09:36:18,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 09:36:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:36:18,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:18,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 09:36:18,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 09:36:18,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 09:36:18,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 09:36:18,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 09:36:18,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 09:36:18,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 09:36:18,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 09:36:18,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 09:36:18,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 09:36:18,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 09:36:18,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740334968] [2020-10-14 09:36:18,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 09:36:18,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 09:36:18,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219032599] [2020-10-14 09:36:18,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 09:36:18,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 09:36:18,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 09:36:18,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:36:18,399 INFO L87 Difference]: Start difference. First operand 38635 states and 58013 transitions. Second operand 4 states. [2020-10-14 09:36:34,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 09:36:34,178 INFO L93 Difference]: Finished difference Result 112514 states and 168500 transitions. [2020-10-14 09:36:34,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 09:36:34,179 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 328 [2020-10-14 09:36:34,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 09:36:34,250 INFO L225 Difference]: With dead ends: 112514 [2020-10-14 09:36:34,251 INFO L226 Difference]: Without dead ends: 75468 [2020-10-14 09:36:34,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 09:36:34,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75468 states. [2020-10-14 09:36:37,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75468 to 75368. [2020-10-14 09:36:37,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75368 states. [2020-10-14 09:36:37,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75368 states to 75368 states and 112384 transitions. [2020-10-14 09:36:37,394 INFO L78 Accepts]: Start accepts. Automaton has 75368 states and 112384 transitions. Word has length 328 [2020-10-14 09:36:37,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 09:36:37,394 INFO L479 AbstractCegarLoop]: Abstraction has 75368 states and 112384 transitions. [2020-10-14 09:36:37,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 09:36:37,395 INFO L276 IsEmpty]: Start isEmpty. Operand 75368 states and 112384 transitions. [2020-10-14 09:36:37,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-10-14 09:36:37,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 09:36:37,449 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 09:36:37,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 09:36:37,449 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 09:36:37,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 09:36:37,449 INFO L82 PathProgramCache]: Analyzing trace with hash 192960324, now seen corresponding path program 1 times [2020-10-14 09:36:37,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 09:36:37,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848647543] [2020-10-14 09:36:37,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 09:36:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 09:36:37,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:37,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:37,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:38,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:38,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:38,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:40,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:40,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:40,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:40,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 09:36:40,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking...