/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 SingleStatement --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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:29:31,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:29:31,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:29:31,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:29:31,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:29:31,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:29:31,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:29:31,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:29:31,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:29:31,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:29:31,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:29:31,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:29:31,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:29:31,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:29:31,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:29:31,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:29:31,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:29:31,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:29:31,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:29:31,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:29:31,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:29:31,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:29:31,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:29:31,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:29:31,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:29:31,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:29:31,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:29:31,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:29:31,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:29:31,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:29:31,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:29:31,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:29:31,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:29:31,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:29:31,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:29:31,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:29:31,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:29:31,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:29:31,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:29:31,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:29:31,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:29:31,267 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 [2020-09-25 03:29:31,319 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:29:31,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:29:31,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:29:31,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:29:31,322 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:29:31,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:29:31,323 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:29:31,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:29:31,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:29:31,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:29:31,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:29:31,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:29:31,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:29:31,326 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:29:31,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:29:31,326 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:29:31,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:29:31,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:29:31,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:29:31,327 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:29:31,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:29:31,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:29:31,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:29:31,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:29:31,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:29:31,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:29:31,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:29:31,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:29:31,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:29:31,329 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 -> SingleStatement 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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=true; [2020-09-25 03:29:31,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:29:31,784 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:29:31,789 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:29:31,791 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:29:31,791 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:29:31,793 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-09-25 03:29:31,894 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f115f3e2d/99ebdf4f991742f5a82952e7744bc018/FLAGdc1953cae [2020-09-25 03:29:32,537 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:29:32,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-09-25 03:29:32,560 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f115f3e2d/99ebdf4f991742f5a82952e7744bc018/FLAGdc1953cae [2020-09-25 03:29:32,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f115f3e2d/99ebdf4f991742f5a82952e7744bc018 [2020-09-25 03:29:32,799 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:29:32,805 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:29:32,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:29:32,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:29:32,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:29:32,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:29:32" (1/1) ... [2020-09-25 03:29:32,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a6210dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:32, skipping insertion in model container [2020-09-25 03:29:32,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:29:32" (1/1) ... [2020-09-25 03:29:32,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:29:32,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:29:33,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:29:33,399 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:29:33,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:29:33,517 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:29:33,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:33 WrapperNode [2020-09-25 03:29:33,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:29:33,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:29:33,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:29:33,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:29:33,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:33" (1/1) ... [2020-09-25 03:29:33,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:33" (1/1) ... [2020-09-25 03:29:33,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:33" (1/1) ... [2020-09-25 03:29:33,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:33" (1/1) ... [2020-09-25 03:29:33,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:33" (1/1) ... [2020-09-25 03:29:33,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:33" (1/1) ... [2020-09-25 03:29:33,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:33" (1/1) ... [2020-09-25 03:29:33,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:29:33,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:29:33,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:29:33,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:29:33,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:33" (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 [2020-09-25 03:29:33,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:29:33,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:29:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 03:29:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-09-25 03:29:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-09-25 03:29:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-09-25 03:29:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-09-25 03:29:33,695 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-09-25 03:29:33,695 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-09-25 03:29:33,695 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-09-25 03:29:33,695 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-09-25 03:29:33,695 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-09-25 03:29:33,696 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-09-25 03:29:33,696 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-09-25 03:29:33,696 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-09-25 03:29:33,696 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-09-25 03:29:33,697 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-09-25 03:29:33,697 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-09-25 03:29:33,697 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:29:33,697 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-09-25 03:29:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:29:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 03:29:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 03:29:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-09-25 03:29:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-09-25 03:29:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-09-25 03:29:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 03:29:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 03:29:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-09-25 03:29:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-09-25 03:29:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-09-25 03:29:33,700 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-09-25 03:29:33,700 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-09-25 03:29:33,700 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-09-25 03:29:33,700 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-09-25 03:29:33,700 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-09-25 03:29:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-25 03:29:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-09-25 03:29:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-09-25 03:29:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-09-25 03:29:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-09-25 03:29:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-09-25 03:29:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-25 03:29:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:29:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:29:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:29:34,807 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:29:34,808 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 03:29:34,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:29:34 BoogieIcfgContainer [2020-09-25 03:29:34,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:29:34,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:29:34,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:29:34,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:29:34,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:29:32" (1/3) ... [2020-09-25 03:29:34,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ab8703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:29:34, skipping insertion in model container [2020-09-25 03:29:34,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:29:33" (2/3) ... [2020-09-25 03:29:34,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ab8703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:29:34, skipping insertion in model container [2020-09-25 03:29:34,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:29:34" (3/3) ... [2020-09-25 03:29:34,827 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-09-25 03:29:34,839 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:29:34,851 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:29:34,878 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:29:34,913 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:29:34,913 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:29:34,913 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:29:34,913 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:29:34,913 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:29:34,914 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:29:34,914 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:29:34,914 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:29:34,949 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states. [2020-09-25 03:29:34,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-09-25 03:29:34,972 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:29:34,974 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] [2020-09-25 03:29:34,974 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:29:34,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:29:34,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1455574608, now seen corresponding path program 1 times [2020-09-25 03:29:34,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:29:34,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647497200] [2020-09-25 03:29:34,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:29:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:35,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:35,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:35,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:36,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:36,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:36,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:37,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:39,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:39,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 03:29:39,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:29:39,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3903 [2020-09-25 03:29:39,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:29:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-09-25 03:29:39,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 03:29:39,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 03:29:39,603 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 03:29:39,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:29:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:39,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:39,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:39,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 03:29:39,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:39,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 03:29:39,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:39,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:39,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:39,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 03:29:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:39,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:39,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:39,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:29:39,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:39,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 03:29:39,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:29:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:29:39,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:39,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:29:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:39,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:39,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:39,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:29:39,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:39,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 03:29:39,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:39,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:29:39,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:29:39,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:29:39,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:39,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 03:29:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:39,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:39,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:39,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:29:39,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:39,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 03:29:39,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:39,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:39,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 03:29:39,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:39,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:39,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:29:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:39,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:39,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:39,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:29:39,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:39,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:29:39,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:39,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:39,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:39,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:39,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:39,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 03:29:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:39,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:39,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:39,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:40,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:40,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:40,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 03:29:40,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:29:40,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 03:29:40,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:40,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:40,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 03:29:40,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:40,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:40,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 03:29:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:40,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:40,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:40,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:29:40,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:40,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:29:40,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:40,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:40,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:40,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:40,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:40,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 03:29:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:40,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:40,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:40,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:40,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:40,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 03:29:40,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:29:40,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 03:29:40,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:40,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:40,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 03:29:40,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:40,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:40,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 03:29:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:40,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:40,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:40,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:29:40,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:40,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:29:40,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:40,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:40,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:40,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:40,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:40,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:29:40,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647497200] [2020-09-25 03:29:40,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:29:40,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 03:29:40,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643751352] [2020-09-25 03:29:40,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 03:29:40,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:29:40,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 03:29:40,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:29:40,409 INFO L87 Difference]: Start difference. First operand 577 states. Second operand 14 states. [2020-09-25 03:29:41,187 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-25 03:29:41,545 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-09-25 03:29:41,794 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-09-25 03:29:46,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:29:46,057 INFO L93 Difference]: Finished difference Result 1058 states and 1321 transitions. [2020-09-25 03:29:46,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 03:29:46,059 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 228 [2020-09-25 03:29:46,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:29:46,102 INFO L225 Difference]: With dead ends: 1058 [2020-09-25 03:29:46,103 INFO L226 Difference]: Without dead ends: 581 [2020-09-25 03:29:46,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2020-09-25 03:29:46,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-09-25 03:29:46,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 553. [2020-09-25 03:29:46,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-09-25 03:29:46,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 646 transitions. [2020-09-25 03:29:46,246 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 646 transitions. Word has length 228 [2020-09-25 03:29:46,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:29:46,247 INFO L479 AbstractCegarLoop]: Abstraction has 553 states and 646 transitions. [2020-09-25 03:29:46,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 03:29:46,247 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 646 transitions. [2020-09-25 03:29:46,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-25 03:29:46,255 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:29:46,260 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] [2020-09-25 03:29:46,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:29:46,261 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:29:46,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:29:46,261 INFO L82 PathProgramCache]: Analyzing trace with hash 503549649, now seen corresponding path program 1 times [2020-09-25 03:29:46,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:29:46,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1515443184] [2020-09-25 03:29:46,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:29:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:46,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:47,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:47,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-25 03:29:47,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:47,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-09-25 03:29:47,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:47,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:29:47,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-09-25 03:29:47,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:29:47,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:47,291 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 03:29:47,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:29:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:47,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:47,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:47,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 03:29:47,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:47,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 03:29:47,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:47,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:47,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:47,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:47,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 03:29:47,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 03:29:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:47,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:47,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:47,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:29:47,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:47,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:29:47,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:47,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:47,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:47,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:47,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:47,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-25 03:29:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:47,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:47,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:47,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:29:47,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:47,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:29:47,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:47,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:47,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:47,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:47,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:47,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 03:29:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:47,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:47,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:47,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:29:47,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:47,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 03:29:47,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:47,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:47,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:47,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:47,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:47,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:29:47,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:47,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:47,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:47,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:29:47,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:47,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:29:47,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:47,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:47,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:47,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:47,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:47,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 03:29:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:47,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:47,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:47,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 03:29:47,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:47,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 03:29:47,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:47,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:47,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:47,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:47,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:47,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 03:29:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:47,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:47,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:47,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:29:47,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:47,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:29:47,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:47,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:47,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:47,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:47,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:47,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 03:29:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:47,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:47,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:47,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 03:29:47,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:47,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 03:29:47,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:47,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:47,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:47,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:47,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:47,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 03:29:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:47,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:47,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:47,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:29:47,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:47,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:29:47,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:47,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:47,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:47,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:47,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:47,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:29:47,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1515443184] [2020-09-25 03:29:47,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:29:47,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 03:29:47,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628627152] [2020-09-25 03:29:47,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:29:47,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:29:47,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:29:47,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:29:47,842 INFO L87 Difference]: Start difference. First operand 553 states and 646 transitions. Second operand 11 states. [2020-09-25 03:29:49,553 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-25 03:29:49,731 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-25 03:29:51,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:29:51,357 INFO L93 Difference]: Finished difference Result 982 states and 1173 transitions. [2020-09-25 03:29:51,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 03:29:51,357 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 239 [2020-09-25 03:29:51,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:29:51,363 INFO L225 Difference]: With dead ends: 982 [2020-09-25 03:29:51,364 INFO L226 Difference]: Without dead ends: 558 [2020-09-25 03:29:51,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2020-09-25 03:29:51,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2020-09-25 03:29:51,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2020-09-25 03:29:51,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-09-25 03:29:51,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 650 transitions. [2020-09-25 03:29:51,409 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 650 transitions. Word has length 239 [2020-09-25 03:29:51,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:29:51,410 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 650 transitions. [2020-09-25 03:29:51,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:29:51,411 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 650 transitions. [2020-09-25 03:29:51,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-09-25 03:29:51,418 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:29:51,419 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:29:51,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:29:51,419 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:29:51,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:29:51,420 INFO L82 PathProgramCache]: Analyzing trace with hash -734642201, now seen corresponding path program 1 times [2020-09-25 03:29:51,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:29:51,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449718223] [2020-09-25 03:29:51,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:29:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:51,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:52,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:52,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:56,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:56,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 349 [2020-09-25 03:29:56,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:29:56,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4564 [2020-09-25 03:29:56,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:29:56,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 03:29:56,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-09-25 03:29:56,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:56,323 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 03:29:56,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:29:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:56,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:56,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:56,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 03:29:56,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:56,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 03:29:56,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:56,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:56,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:56,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 03:29:56,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:56,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 03:29:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:56,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:56,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:56,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:29:56,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:56,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 03:29:56,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:56,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:56,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:56,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:29:56,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:56,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-25 03:29:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:56,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:56,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:56,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:29:56,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:56,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:29:56,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:56,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:56,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:56,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:29:56,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:56,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 03:29:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:56,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:56,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:56,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:29:56,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:56,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 03:29:56,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:29:56,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:56,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:29:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:56,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:56,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:56,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:29:56,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:56,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:29:56,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:56,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:56,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:56,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:56,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:56,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 03:29:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:56,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:56,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:56,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 03:29:56,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:56,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 03:29:56,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:56,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:56,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:56,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:29:56,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:56,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 03:29:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:56,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:56,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:56,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:29:56,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:56,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:29:56,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:56,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:56,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 03:29:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:56,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:56,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:56,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 03:29:56,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:56,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 03:29:56,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:56,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:56,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:56,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:29:56,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:29:56,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 03:29:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:56,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:56,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:56,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:29:56,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:56,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:29:56,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:56,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:56,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:56,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:56,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:56,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-25 03:29:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:56,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:57,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:57,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 03:29:57,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:57,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 03:29:57,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:29:57,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:29:57,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 03:29:57,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:57,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:29:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:57,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:57,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:57,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:29:57,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:57,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:29:57,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:57,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:29:57,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:57,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 03:29:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:57,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:57,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:57,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:29:57,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:57,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:29:57,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:57,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:29:57,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:29:57,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:29:57,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:57,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-09-25 03:29:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:29:57,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:29:57,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:29:57,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:29:57,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:29:57,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:29:57,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:29:57,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:29:57,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:29:57,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:29:57,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:29:57,420 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 03:29:57,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449718223] [2020-09-25 03:29:57,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:29:57,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-09-25 03:29:57,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791856758] [2020-09-25 03:29:57,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 03:29:57,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:29:57,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 03:29:57,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:29:57,427 INFO L87 Difference]: Start difference. First operand 558 states and 650 transitions. Second operand 17 states. [2020-09-25 03:29:57,558 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 03:29:58,136 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-25 03:30:00,527 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 139 [2020-09-25 03:30:00,660 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-09-25 03:30:01,563 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-25 03:30:03,849 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-25 03:30:04,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:30:04,436 INFO L93 Difference]: Finished difference Result 1187 states and 1396 transitions. [2020-09-25 03:30:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-25 03:30:04,436 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 312 [2020-09-25 03:30:04,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:30:04,447 INFO L225 Difference]: With dead ends: 1187 [2020-09-25 03:30:04,447 INFO L226 Difference]: Without dead ends: 758 [2020-09-25 03:30:04,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=597, Invalid=1755, Unknown=0, NotChecked=0, Total=2352 [2020-09-25 03:30:04,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-09-25 03:30:04,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 750. [2020-09-25 03:30:04,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-09-25 03:30:04,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 867 transitions. [2020-09-25 03:30:04,527 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 867 transitions. Word has length 312 [2020-09-25 03:30:04,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:30:04,530 INFO L479 AbstractCegarLoop]: Abstraction has 750 states and 867 transitions. [2020-09-25 03:30:04,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 03:30:04,530 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 867 transitions. [2020-09-25 03:30:04,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-09-25 03:30:04,537 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:30:04,537 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:30:04,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:30:04,538 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:30:04,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:30:04,538 INFO L82 PathProgramCache]: Analyzing trace with hash 679708041, now seen corresponding path program 1 times [2020-09-25 03:30:04,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:30:04,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805232577] [2020-09-25 03:30:04,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:30:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:04,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:05,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:05,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:06,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:09,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:09,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 350 [2020-09-25 03:30:09,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:30:09,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 03:30:09,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:09,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:30:09,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 03:30:09,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-09-25 03:30:09,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:30:09,878 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 03:30:09,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:30:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:09,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:10,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:10,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 03:30:10,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:30:10,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-25 03:30:10,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:10,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:30:10,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:30:10,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 03:30:10,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:30:10,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 03:30:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:10,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:10,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:10,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:30:10,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:30:10,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:30:10,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:10,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:30:10,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:30:10,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:30:10,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:30:10,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-25 03:30:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:10,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:10,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:10,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:30:10,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:30:10,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:30:10,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:10,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:30:10,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:30:10,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:30:10,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:30:10,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 03:30:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:10,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:10,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:10,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:30:10,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:30:10,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 03:30:10,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:10,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:30:10,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:30:10,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:30:10,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:30:10,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:30:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:10,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:10,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:10,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:30:10,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:30:10,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:30:10,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:10,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:30:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:30:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:30:10,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:30:10,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 03:30:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:10,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:10,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:10,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 03:30:10,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:30:10,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 03:30:10,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:10,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:30:10,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:30:10,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:30:10,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:30:10,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 03:30:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:10,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:10,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:10,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:30:10,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:30:10,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:30:10,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:10,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:30:10,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:30:10,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:30:10,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:30:10,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 03:30:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:10,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:10,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:10,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 03:30:10,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:30:10,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 03:30:10,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:10,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:30:10,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:30:10,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 03:30:10,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:30:10,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 03:30:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:10,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:10,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:10,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:30:10,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:30:10,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:30:10,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:10,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:30:10,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:30:10,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:30:10,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:30:10,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-25 03:30:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:10,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:10,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:10,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-25 03:30:10,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:30:10,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 03:30:10,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:30:10,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:30:10,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 03:30:10,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:30:10,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 03:30:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:10,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:10,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:10,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:30:10,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:30:10,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:30:10,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:10,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:30:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:30:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:30:10,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:30:10,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-25 03:30:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:10,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:10,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:10,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:30:10,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:30:10,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:30:10,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:10,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:30:10,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:30:10,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:30:10,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:30:10,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-09-25 03:30:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:10,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:10,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:10,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:30:10,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:30:10,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:30:10,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:10,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:30:10,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:30:10,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:30:10,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:30:11,118 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 03:30:11,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805232577] [2020-09-25 03:30:11,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:30:11,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-09-25 03:30:11,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007246727] [2020-09-25 03:30:11,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 03:30:11,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:30:11,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 03:30:11,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:30:11,125 INFO L87 Difference]: Start difference. First operand 750 states and 867 transitions. Second operand 16 states. [2020-09-25 03:30:11,265 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-25 03:30:11,846 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-25 03:30:12,578 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-25 03:30:14,284 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-09-25 03:30:14,422 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-25 03:30:17,287 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-09-25 03:30:18,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:30:18,191 INFO L93 Difference]: Finished difference Result 1210 states and 1428 transitions. [2020-09-25 03:30:18,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-09-25 03:30:18,191 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 313 [2020-09-25 03:30:18,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:30:18,197 INFO L225 Difference]: With dead ends: 1210 [2020-09-25 03:30:18,197 INFO L226 Difference]: Without dead ends: 774 [2020-09-25 03:30:18,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=692, Invalid=1960, Unknown=0, NotChecked=0, Total=2652 [2020-09-25 03:30:18,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2020-09-25 03:30:18,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 768. [2020-09-25 03:30:18,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2020-09-25 03:30:18,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 887 transitions. [2020-09-25 03:30:18,243 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 887 transitions. Word has length 313 [2020-09-25 03:30:18,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:30:18,244 INFO L479 AbstractCegarLoop]: Abstraction has 768 states and 887 transitions. [2020-09-25 03:30:18,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 03:30:18,245 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 887 transitions. [2020-09-25 03:30:18,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-09-25 03:30:18,249 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:30:18,249 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:30:18,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:30:18,250 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:30:18,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:30:18,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1399853749, now seen corresponding path program 1 times [2020-09-25 03:30:18,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:30:18,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277835929] [2020-09-25 03:30:18,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:30:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:18,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:18,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:19,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:22,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:22,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 352 [2020-09-25 03:30:22,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:30:22,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3965 [2020-09-25 03:30:22,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:30:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-09-25 03:30:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 03:30:22,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:30:22,500 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-25 03:30:22,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:30:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:22,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:22,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:22,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 03:30:22,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:30:22,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 03:30:22,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:22,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:30:22,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:30:22,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:30:22,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:30:22,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-25 03:30:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:22,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:22,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:22,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:30:22,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:30:22,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:30:22,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:22,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:30:22,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:30:22,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:30:22,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:30:22,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-25 03:30:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:30:22,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:30:22,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:30:22,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:30:22,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:30:22,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:30:22,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:30:22,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:30:22,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:30:22,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:30:22,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0