/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 03:00:15,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 03:00:15,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 03:00:15,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 03:00:15,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 03:00:15,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 03:00:15,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 03:00:15,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 03:00:15,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 03:00:15,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 03:00:15,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 03:00:15,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 03:00:15,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 03:00:15,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 03:00:15,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 03:00:15,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 03:00:15,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 03:00:15,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 03:00:15,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 03:00:15,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 03:00:15,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 03:00:15,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 03:00:15,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 03:00:15,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 03:00:15,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 03:00:15,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 03:00:15,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 03:00:15,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 03:00:15,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 03:00:15,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 03:00:15,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 03:00:15,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 03:00:15,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 03:00:15,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 03:00:15,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 03:00:15,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 03:00:15,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 03:00:15,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 03:00:15,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 03:00:15,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 03:00:15,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 03:00:15,786 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 [2020-10-15 03:00:15,827 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 03:00:15,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 03:00:15,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 03:00:15,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 03:00:15,830 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 03:00:15,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 03:00:15,831 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 03:00:15,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 03:00:15,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 03:00:15,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 03:00:15,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 03:00:15,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 03:00:15,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 03:00:15,834 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 03:00:15,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 03:00:15,834 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 03:00:15,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 03:00:15,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 03:00:15,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 03:00:15,835 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 03:00:15,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 03:00:15,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 03:00:15,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 03:00:15,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 03:00:15,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 03:00:15,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 03:00:15,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 03:00:15,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 03:00:15,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 03:00:15,837 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 03:00:16,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 03:00:16,199 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 03:00:16,203 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 03:00:16,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 03:00:16,205 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 03:00:16,206 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-15 03:00:16,283 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a723219d0/33e2babc185043a7a1f712b72659e40e/FLAG904894a13 [2020-10-15 03:00:16,975 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 03:00:16,976 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-15 03:00:17,006 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a723219d0/33e2babc185043a7a1f712b72659e40e/FLAG904894a13 [2020-10-15 03:00:17,119 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a723219d0/33e2babc185043a7a1f712b72659e40e [2020-10-15 03:00:17,127 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 03:00:17,129 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 03:00:17,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 03:00:17,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 03:00:17,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 03:00:17,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:00:17" (1/1) ... [2020-10-15 03:00:17,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1efc8eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:17, skipping insertion in model container [2020-10-15 03:00:17,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:00:17" (1/1) ... [2020-10-15 03:00:17,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 03:00:17,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 03:00:18,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:00:18,616 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 03:00:19,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 03:00:19,445 INFO L208 MainTranslator]: Completed translation [2020-10-15 03:00:19,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19 WrapperNode [2020-10-15 03:00:19,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 03:00:19,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 03:00:19,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 03:00:19,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 03:00:19,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (1/1) ... [2020-10-15 03:00:19,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (1/1) ... [2020-10-15 03:00:19,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (1/1) ... [2020-10-15 03:00:19,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (1/1) ... [2020-10-15 03:00:19,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (1/1) ... [2020-10-15 03:00:19,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (1/1) ... [2020-10-15 03:00:19,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (1/1) ... [2020-10-15 03:00:19,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 03:00:19,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 03:00:19,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 03:00:19,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 03:00:19,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (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 [2020-10-15 03:00:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 03:00:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 03:00:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 03:00:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 03:00:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 03:00:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 03:00:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 03:00:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 03:00:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 03:00:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 03:00:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 03:00:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 03:00:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 03:00:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 03:00:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 03:00:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 03:00:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 03:00:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 03:00:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 03:00:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 03:00:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 03:00:22,580 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 03:00:22,580 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 03:00:22,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:00:22 BoogieIcfgContainer [2020-10-15 03:00:22,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 03:00:22,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 03:00:22,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 03:00:22,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 03:00:22,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:00:17" (1/3) ... [2020-10-15 03:00:22,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13897577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:00:22, skipping insertion in model container [2020-10-15 03:00:22,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:19" (2/3) ... [2020-10-15 03:00:22,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13897577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:00:22, skipping insertion in model container [2020-10-15 03:00:22,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:00:22" (3/3) ... [2020-10-15 03:00:22,608 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-10-15 03:00:22,619 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 03:00:22,643 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-10-15 03:00:22,662 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-10-15 03:00:22,691 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 03:00:22,691 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 03:00:22,691 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 03:00:22,691 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 03:00:22,691 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 03:00:22,691 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 03:00:22,692 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 03:00:22,692 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 03:00:22,728 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states. [2020-10-15 03:00:22,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-10-15 03:00:22,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:00:22,754 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] [2020-10-15 03:00:22,755 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]=== [2020-10-15 03:00:22,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:00:22,762 INFO L82 PathProgramCache]: Analyzing trace with hash 525437657, now seen corresponding path program 1 times [2020-10-15 03:00:22,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:00:22,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [340722904] [2020-10-15 03:00:22,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:00:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:23,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:24,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:25,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:25,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:25,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:26,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:26,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:26,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:26,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:26,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:27,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:27,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:27,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:28,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:28,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:28,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:28,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:28,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-10-15 03:00:28,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:00:28,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-15 03:00:28,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:28,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:28,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 03:00:28,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-15 03:00:28,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-15 03:00:28,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 03:00:29,627 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:00:29,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:00:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:29,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:29,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:29,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:00:29,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:00:29,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 03:00:29,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:29,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:29,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:00:29,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:00:29,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:00:29,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 03:00:29,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:00:29,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [340722904] [2020-10-15 03:00:29,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:00:29,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 03:00:29,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120303670] [2020-10-15 03:00:29,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 03:00:29,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:00:29,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 03:00:29,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 03:00:29,934 INFO L87 Difference]: Start difference. First operand 898 states. Second operand 4 states. [2020-10-15 03:00:30,589 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 317 [2020-10-15 03:00:37,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:00:37,199 INFO L93 Difference]: Finished difference Result 1593 states and 2853 transitions. [2020-10-15 03:00:37,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:00:37,201 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 290 [2020-10-15 03:00:37,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:00:37,233 INFO L225 Difference]: With dead ends: 1593 [2020-10-15 03:00:37,233 INFO L226 Difference]: Without dead ends: 1390 [2020-10-15 03:00:37,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:00:37,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2020-10-15 03:00:37,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1388. [2020-10-15 03:00:37,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1388 states. [2020-10-15 03:00:37,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 2149 transitions. [2020-10-15 03:00:37,386 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 2149 transitions. Word has length 290 [2020-10-15 03:00:37,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:00:37,392 INFO L479 AbstractCegarLoop]: Abstraction has 1388 states and 2149 transitions. [2020-10-15 03:00:37,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 03:00:37,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 2149 transitions. [2020-10-15 03:00:37,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-10-15 03:00:37,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:00:37,410 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] [2020-10-15 03:00:37,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 03:00:37,411 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]=== [2020-10-15 03:00:37,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:00:37,412 INFO L82 PathProgramCache]: Analyzing trace with hash 525099033, now seen corresponding path program 1 times [2020-10-15 03:00:37,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:00:37,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369711846] [2020-10-15 03:00:37,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:00:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:38,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:38,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:38,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:39,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:39,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:39,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:39,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:39,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:39,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:39,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:40,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:40,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:40,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:41,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:41,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:41,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:42,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:42,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-10-15 03:00:42,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 03:00:42,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-15 03:00:42,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:42,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:00:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:00:42,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-15 03:00:42,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:00:43,599 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:00:43,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:00:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:43,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:43,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:43,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:00:43,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:00:43,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 03:00:43,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:43,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:43,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:00:43,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:00:43,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:00:43,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:00:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:00:44,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369711846] [2020-10-15 03:00:44,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:00:44,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:00:44,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783663231] [2020-10-15 03:00:44,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:00:44,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:00:44,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:00:44,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:00:44,067 INFO L87 Difference]: Start difference. First operand 1388 states and 2149 transitions. Second operand 5 states. [2020-10-15 03:00:53,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:00:53,998 INFO L93 Difference]: Finished difference Result 4099 states and 6344 transitions. [2020-10-15 03:00:53,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:00:53,999 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 290 [2020-10-15 03:00:54,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:00:54,014 INFO L225 Difference]: With dead ends: 4099 [2020-10-15 03:00:54,015 INFO L226 Difference]: Without dead ends: 2726 [2020-10-15 03:00:54,021 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 [2020-10-15 03:00:54,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2020-10-15 03:00:54,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 2584. [2020-10-15 03:00:54,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2584 states. [2020-10-15 03:00:54,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 4000 transitions. [2020-10-15 03:00:54,149 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 4000 transitions. Word has length 290 [2020-10-15 03:00:54,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:00:54,150 INFO L479 AbstractCegarLoop]: Abstraction has 2584 states and 4000 transitions. [2020-10-15 03:00:54,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:00:54,150 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 4000 transitions. [2020-10-15 03:00:54,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-10-15 03:00:54,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:00:54,159 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] [2020-10-15 03:00:54,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 03:00:54,160 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]=== [2020-10-15 03:00:54,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:00:54,160 INFO L82 PathProgramCache]: Analyzing trace with hash -2036900388, now seen corresponding path program 1 times [2020-10-15 03:00:54,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:00:54,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441913791] [2020-10-15 03:00:54,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:00:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:54,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:54,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:54,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:54,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:54,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:55,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:55,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:55,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:55,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:55,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:55,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:55,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:55,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:56,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:56,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:59,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:59,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-15 03:00:59,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:00:59,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-15 03:00:59,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:59,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:59,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:00:59,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:00:59,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-15 03:00:59,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:00:59,946 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:00:59,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:00:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:00:59,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:00:59,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:00:59,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:00:59,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:00:59,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 03:00:59,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:00:59,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:00:59,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:00:59,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:00:59,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:00:59,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:01:00,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:01:00,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441913791] [2020-10-15 03:01:00,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:01:00,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:01:00,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064237384] [2020-10-15 03:01:00,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:01:00,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:01:00,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:01:00,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:01:00,185 INFO L87 Difference]: Start difference. First operand 2584 states and 4000 transitions. Second operand 5 states. [2020-10-15 03:01:09,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:01:09,428 INFO L93 Difference]: Finished difference Result 7613 states and 11768 transitions. [2020-10-15 03:01:09,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:01:09,429 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 292 [2020-10-15 03:01:09,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:01:09,456 INFO L225 Difference]: With dead ends: 7613 [2020-10-15 03:01:09,456 INFO L226 Difference]: Without dead ends: 5051 [2020-10-15 03:01:09,462 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 [2020-10-15 03:01:09,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5051 states. [2020-10-15 03:01:09,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5051 to 4951. [2020-10-15 03:01:09,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4951 states. [2020-10-15 03:01:09,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4951 states to 4951 states and 7619 transitions. [2020-10-15 03:01:09,668 INFO L78 Accepts]: Start accepts. Automaton has 4951 states and 7619 transitions. Word has length 292 [2020-10-15 03:01:09,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:01:09,669 INFO L479 AbstractCegarLoop]: Abstraction has 4951 states and 7619 transitions. [2020-10-15 03:01:09,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:01:09,669 INFO L276 IsEmpty]: Start isEmpty. Operand 4951 states and 7619 transitions. [2020-10-15 03:01:09,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-10-15 03:01:09,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:01:09,685 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] [2020-10-15 03:01:09,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 03:01:09,685 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]=== [2020-10-15 03:01:09,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:01:09,686 INFO L82 PathProgramCache]: Analyzing trace with hash 658203353, now seen corresponding path program 1 times [2020-10-15 03:01:09,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:01:09,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445528692] [2020-10-15 03:01:09,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:01:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:09,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:09,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:09,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:10,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:10,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:10,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:10,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:10,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:10,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:11,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:11,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:11,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:11,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:11,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:11,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:14,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:14,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-10-15 03:01:14,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:01:14,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-15 03:01:14,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:14,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:14,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:01:14,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:01:14,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-15 03:01:14,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 03:01:15,534 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:01:15,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:01:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:15,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:15,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:15,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:01:15,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:01:15,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 03:01:15,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:15,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:15,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:01:15,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:01:15,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:01:15,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:01:15,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:01:15,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445528692] [2020-10-15 03:01:15,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:01:15,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:01:15,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876778662] [2020-10-15 03:01:15,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:01:15,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:01:15,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:01:15,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:01:15,718 INFO L87 Difference]: Start difference. First operand 4951 states and 7619 transitions. Second operand 5 states. [2020-10-15 03:01:26,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:01:26,562 INFO L93 Difference]: Finished difference Result 14507 states and 22283 transitions. [2020-10-15 03:01:26,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:01:26,563 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 294 [2020-10-15 03:01:26,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:01:26,606 INFO L225 Difference]: With dead ends: 14507 [2020-10-15 03:01:26,606 INFO L226 Difference]: Without dead ends: 9687 [2020-10-15 03:01:26,618 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 [2020-10-15 03:01:26,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9687 states. [2020-10-15 03:01:27,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9687 to 9511. [2020-10-15 03:01:27,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9511 states. [2020-10-15 03:01:27,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9511 states to 9511 states and 14573 transitions. [2020-10-15 03:01:27,100 INFO L78 Accepts]: Start accepts. Automaton has 9511 states and 14573 transitions. Word has length 294 [2020-10-15 03:01:27,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:01:27,100 INFO L479 AbstractCegarLoop]: Abstraction has 9511 states and 14573 transitions. [2020-10-15 03:01:27,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:01:27,101 INFO L276 IsEmpty]: Start isEmpty. Operand 9511 states and 14573 transitions. [2020-10-15 03:01:27,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-10-15 03:01:27,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:01:27,123 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] [2020-10-15 03:01:27,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 03:01:27,124 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]=== [2020-10-15 03:01:27,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:01:27,124 INFO L82 PathProgramCache]: Analyzing trace with hash -2115937330, now seen corresponding path program 1 times [2020-10-15 03:01:27,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:01:27,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258493446] [2020-10-15 03:01:27,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:01:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:27,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:27,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:27,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:27,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:28,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:28,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:29,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:29,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:29,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:29,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:29,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:29,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:29,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:29,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:29,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:32,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:32,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-15 03:01:32,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 03:01:32,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-15 03:01:32,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:32,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:32,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:01:32,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:01:32,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-15 03:01:32,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:01:33,088 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:01:33,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:01:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:33,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:33,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:33,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:01:33,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:01:33,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 03:01:33,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:33,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:33,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:01:33,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:01:33,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:01:33,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:01:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:01:33,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258493446] [2020-10-15 03:01:33,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:01:33,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:01:33,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475948767] [2020-10-15 03:01:33,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:01:33,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:01:33,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:01:33,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:01:33,305 INFO L87 Difference]: Start difference. First operand 9511 states and 14573 transitions. Second operand 5 states. [2020-10-15 03:01:43,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:01:43,711 INFO L93 Difference]: Finished difference Result 28055 states and 42923 transitions. [2020-10-15 03:01:43,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:01:43,712 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 296 [2020-10-15 03:01:43,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:01:43,767 INFO L225 Difference]: With dead ends: 28055 [2020-10-15 03:01:43,768 INFO L226 Difference]: Without dead ends: 18621 [2020-10-15 03:01:43,795 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 [2020-10-15 03:01:43,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18621 states. [2020-10-15 03:01:44,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18621 to 18465. [2020-10-15 03:01:44,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18465 states. [2020-10-15 03:01:44,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18465 states to 18465 states and 28079 transitions. [2020-10-15 03:01:44,687 INFO L78 Accepts]: Start accepts. Automaton has 18465 states and 28079 transitions. Word has length 296 [2020-10-15 03:01:44,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:01:44,688 INFO L479 AbstractCegarLoop]: Abstraction has 18465 states and 28079 transitions. [2020-10-15 03:01:44,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:01:44,688 INFO L276 IsEmpty]: Start isEmpty. Operand 18465 states and 28079 transitions. [2020-10-15 03:01:44,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-10-15 03:01:44,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:01:44,726 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] [2020-10-15 03:01:44,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 03:01:44,727 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]=== [2020-10-15 03:01:44,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:01:44,727 INFO L82 PathProgramCache]: Analyzing trace with hash 911948170, now seen corresponding path program 1 times [2020-10-15 03:01:44,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:01:44,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646102778] [2020-10-15 03:01:44,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:01:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:44,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:45,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:45,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:45,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:45,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:45,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:45,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:49,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:49,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-15 03:01:49,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 03:01:49,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-15 03:01:49,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:49,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:49,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:01:49,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:01:49,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-15 03:01:49,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:01:50,638 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:01:50,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:01:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:01:50,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:01:50,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:01:50,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:01:50,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:01:50,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:01:50,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:01:50,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:01:50,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:01:50,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:01:50,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:01:50,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 03:01:50,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:01:50,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [646102778] [2020-10-15 03:01:50,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:01:50,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:01:50,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554104382] [2020-10-15 03:01:50,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:01:50,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:01:50,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:01:50,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:01:50,765 INFO L87 Difference]: Start difference. First operand 18465 states and 28079 transitions. Second operand 5 states. [2020-10-15 03:02:00,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:02:00,505 INFO L93 Difference]: Finished difference Result 54181 states and 82235 transitions. [2020-10-15 03:02:00,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:02:00,505 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 298 [2020-10-15 03:02:00,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:02:00,591 INFO L225 Difference]: With dead ends: 54181 [2020-10-15 03:02:00,591 INFO L226 Difference]: Without dead ends: 36037 [2020-10-15 03:02:00,632 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 [2020-10-15 03:02:00,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36037 states. [2020-10-15 03:02:02,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36037 to 35845. [2020-10-15 03:02:02,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35845 states. [2020-10-15 03:02:02,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35845 states to 35845 states and 54107 transitions. [2020-10-15 03:02:02,994 INFO L78 Accepts]: Start accepts. Automaton has 35845 states and 54107 transitions. Word has length 298 [2020-10-15 03:02:02,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:02:02,994 INFO L479 AbstractCegarLoop]: Abstraction has 35845 states and 54107 transitions. [2020-10-15 03:02:02,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:02:02,994 INFO L276 IsEmpty]: Start isEmpty. Operand 35845 states and 54107 transitions. [2020-10-15 03:02:03,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-10-15 03:02:03,040 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:02:03,040 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] [2020-10-15 03:02:03,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 03:02:03,041 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]=== [2020-10-15 03:02:03,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:02:03,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1561268475, now seen corresponding path program 1 times [2020-10-15 03:02:03,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:02:03,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215586062] [2020-10-15 03:02:03,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:02:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:02:03,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:03,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:03,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:03,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:03,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:03,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:03,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:03,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:03,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:03,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:03,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:03,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:07,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:08,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:02:08,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-15 03:02:08,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:02:08,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 03:02:08,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:02:08,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:02:08,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:02:08,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:02:08,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-15 03:02:08,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:02:08,968 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:02:08,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:02:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:02:08,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:09,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:02:09,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:02:09,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:02:09,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 03:02:09,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:02:09,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:02:09,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:02:09,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:02:09,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:02:09,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:02:09,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:02:09,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215586062] [2020-10-15 03:02:09,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:02:09,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:02:09,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571045404] [2020-10-15 03:02:09,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:02:09,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:02:09,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:02:09,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:02:09,139 INFO L87 Difference]: Start difference. First operand 35845 states and 54107 transitions. Second operand 5 states. [2020-10-15 03:02:21,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:02:21,254 INFO L93 Difference]: Finished difference Result 105599 states and 159197 transitions. [2020-10-15 03:02:21,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:02:21,255 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 300 [2020-10-15 03:02:21,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:02:21,412 INFO L225 Difference]: With dead ends: 105599 [2020-10-15 03:02:21,412 INFO L226 Difference]: Without dead ends: 70175 [2020-10-15 03:02:21,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:02:21,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70175 states. [2020-10-15 03:02:24,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70175 to 69983. [2020-10-15 03:02:24,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69983 states. [2020-10-15 03:02:24,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69983 states to 69983 states and 104869 transitions. [2020-10-15 03:02:24,990 INFO L78 Accepts]: Start accepts. Automaton has 69983 states and 104869 transitions. Word has length 300 [2020-10-15 03:02:24,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:02:24,991 INFO L479 AbstractCegarLoop]: Abstraction has 69983 states and 104869 transitions. [2020-10-15 03:02:24,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:02:24,991 INFO L276 IsEmpty]: Start isEmpty. Operand 69983 states and 104869 transitions. [2020-10-15 03:02:25,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-15 03:02:25,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:02:25,074 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] [2020-10-15 03:02:25,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 03:02:25,074 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]=== [2020-10-15 03:02:25,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:02:25,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1370053405, now seen corresponding path program 1 times [2020-10-15 03:02:25,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:02:25,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107002067] [2020-10-15 03:02:25,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:02:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:02:25,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:25,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:25,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:25,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:25,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:25,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:25,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:25,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:25,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:25,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:25,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:25,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:25,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:30,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:02:30,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-15 03:02:30,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:02:30,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-15 03:02:30,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:02:30,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:02:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:02:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:02:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-15 03:02:30,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:02:30,783 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:02:30,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:02:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:02:30,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:30,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:02:30,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:02:30,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:02:30,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 03:02:30,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:02:30,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:02:30,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:02:30,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:02:30,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:02:30,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:02:30,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:02:30,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107002067] [2020-10-15 03:02:30,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:02:30,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:02:30,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92821883] [2020-10-15 03:02:30,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:02:30,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:02:30,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:02:30,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:02:30,928 INFO L87 Difference]: Start difference. First operand 69983 states and 104869 transitions. Second operand 5 states. [2020-10-15 03:02:48,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:02:48,413 INFO L93 Difference]: Finished difference Result 205573 states and 307379 transitions. [2020-10-15 03:02:48,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:02:48,413 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 302 [2020-10-15 03:02:48,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:02:48,673 INFO L225 Difference]: With dead ends: 205573 [2020-10-15 03:02:48,673 INFO L226 Difference]: Without dead ends: 137209 [2020-10-15 03:02:48,763 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 [2020-10-15 03:02:48,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137209 states. [2020-10-15 03:02:58,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137209 to 137061. [2020-10-15 03:02:58,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137061 states. [2020-10-15 03:02:59,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137061 states to 137061 states and 203727 transitions. [2020-10-15 03:02:59,125 INFO L78 Accepts]: Start accepts. Automaton has 137061 states and 203727 transitions. Word has length 302 [2020-10-15 03:02:59,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 03:02:59,126 INFO L479 AbstractCegarLoop]: Abstraction has 137061 states and 203727 transitions. [2020-10-15 03:02:59,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 03:02:59,126 INFO L276 IsEmpty]: Start isEmpty. Operand 137061 states and 203727 transitions. [2020-10-15 03:02:59,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-15 03:02:59,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 03:02:59,240 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] [2020-10-15 03:02:59,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 03:02:59,241 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]=== [2020-10-15 03:02:59,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 03:02:59,241 INFO L82 PathProgramCache]: Analyzing trace with hash -2025103419, now seen corresponding path program 1 times [2020-10-15 03:02:59,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 03:02:59,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857731508] [2020-10-15 03:02:59,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 03:02:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:02:59,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:59,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:59,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:59,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:59,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:59,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:59,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:59,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:59,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:59,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:59,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:59,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:02:59,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:03:04,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:03:04,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-15 03:03:04,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-15 03:03:04,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-15 03:03:04,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:03:04,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:03:04,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 03:03:04,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 03:03:04,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-15 03:03:04,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:03:04,948 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-10-15 03:03:04,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 03:03:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 03:03:04,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 03:03:04,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 03:03:04,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 03:03:04,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 03:03:04,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 03:03:04,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 03:03:04,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 03:03:04,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 03:03:04,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 03:03:04,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 03:03:04,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 03:03:05,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 03:03:05,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857731508] [2020-10-15 03:03:05,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 03:03:05,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 03:03:05,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457154067] [2020-10-15 03:03:05,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 03:03:05,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 03:03:05,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 03:03:05,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 03:03:05,095 INFO L87 Difference]: Start difference. First operand 137061 states and 203727 transitions. Second operand 5 states. [2020-10-15 03:03:32,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 03:03:32,576 INFO L93 Difference]: Finished difference Result 400848 states and 593893 transitions. [2020-10-15 03:03:32,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 03:03:32,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 304 [2020-10-15 03:03:32,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 03:03:32,975 INFO L225 Difference]: With dead ends: 400848 [2020-10-15 03:03:32,976 INFO L226 Difference]: Without dead ends: 268150 [2020-10-15 03:03:33,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 03:03:33,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268150 states.