/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=HIGHLEXORDER --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.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:58:05,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:58:05,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:58:06,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:58:06,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:58:06,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:58:06,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:58:06,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:58:06,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:58:06,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:58:06,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:58:06,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:58:06,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:58:06,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:58:06,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:58:06,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:58:06,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:58:06,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:58:06,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:58:06,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:58:06,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:58:06,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:58:06,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:58:06,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:58:06,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:58:06,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:58:06,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:58:06,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:58:06,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:58:06,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:58:06,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:58:06,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:58:06,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:58:06,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:58:06,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:58:06,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:58:06,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:58:06,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:58:06,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:58:06,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:58:06,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:58:06,089 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 [2020-09-24 22:58:06,135 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:58:06,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:58:06,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:58:06,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:58:06,138 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:58:06,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:58:06,139 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:58:06,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:58:06,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:58:06,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:58:06,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:58:06,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:58:06,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:58:06,141 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:58:06,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:58:06,141 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:58:06,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:58:06,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:58:06,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:58:06,142 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:58:06,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:58:06,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:58:06,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:58:06,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:58:06,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:58:06,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:58:06,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:58:06,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:58:06,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:58:06,144 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:58:06,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:58:06,658 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:58:06,662 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:58:06,665 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:58:06,666 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:58:06,667 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-09-24 22:58:06,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/563d43b02/1aa3554725164a25ac7ef8b9dff5285f/FLAG2fff3fa4b [2020-09-24 22:58:07,337 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:58:07,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-09-24 22:58:07,357 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/563d43b02/1aa3554725164a25ac7ef8b9dff5285f/FLAG2fff3fa4b [2020-09-24 22:58:07,619 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/563d43b02/1aa3554725164a25ac7ef8b9dff5285f [2020-09-24 22:58:07,634 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:58:07,640 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:58:07,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:58:07,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:58:07,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:58:07,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:58:07" (1/1) ... [2020-09-24 22:58:07,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:07, skipping insertion in model container [2020-09-24 22:58:07,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:58:07" (1/1) ... [2020-09-24 22:58:07,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:58:07,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:58:08,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:58:08,085 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:58:08,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:58:08,318 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:58:08,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08 WrapperNode [2020-09-24 22:58:08,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:58:08,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:58:08,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:58:08,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:58:08,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (1/1) ... [2020-09-24 22:58:08,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (1/1) ... [2020-09-24 22:58:08,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (1/1) ... [2020-09-24 22:58:08,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (1/1) ... [2020-09-24 22:58:08,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (1/1) ... [2020-09-24 22:58:08,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (1/1) ... [2020-09-24 22:58:08,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (1/1) ... [2020-09-24 22:58:08,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:58:08,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:58:08,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:58:08,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:58:08,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (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 [2020-09-24 22:58:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:58:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:58:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 22:58:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-09-24 22:58:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-09-24 22:58:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-09-24 22:58:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-09-24 22:58:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-09-24 22:58:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-09-24 22:58:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-09-24 22:58:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-09-24 22:58:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-09-24 22:58:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-09-24 22:58:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-09-24 22:58:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-09-24 22:58:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-09-24 22:58:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-09-24 22:58:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-09-24 22:58:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:58:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-09-24 22:58:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:58:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 22:58:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 22:58:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-09-24 22:58:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-09-24 22:58:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-09-24 22:58:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 22:58:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 22:58:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-09-24 22:58:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-09-24 22:58:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-09-24 22:58:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-09-24 22:58:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-09-24 22:58:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-09-24 22:58:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-09-24 22:58:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-09-24 22:58:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-24 22:58:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-09-24 22:58:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-09-24 22:58:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-09-24 22:58:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-09-24 22:58:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-09-24 22:58:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-24 22:58:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:58:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:58:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:58:09,619 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:58:09,620 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 22:58:09,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:58:09 BoogieIcfgContainer [2020-09-24 22:58:09,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:58:09,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:58:09,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:58:09,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:58:09,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:58:07" (1/3) ... [2020-09-24 22:58:09,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f239704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:58:09, skipping insertion in model container [2020-09-24 22:58:09,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:58:08" (2/3) ... [2020-09-24 22:58:09,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f239704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:58:09, skipping insertion in model container [2020-09-24 22:58:09,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:58:09" (3/3) ... [2020-09-24 22:58:09,640 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-09-24 22:58:09,651 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:58:09,663 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:58:09,687 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:58:09,723 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:58:09,723 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:58:09,723 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:58:09,724 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:58:09,724 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:58:09,724 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:58:09,724 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:58:09,724 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:58:09,760 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states. [2020-09-24 22:58:09,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-09-24 22:58:09,782 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:58:09,783 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] [2020-09-24 22:58:09,784 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:58:09,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:58:09,793 INFO L82 PathProgramCache]: Analyzing trace with hash -182402980, now seen corresponding path program 1 times [2020-09-24 22:58:09,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:58:09,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685493002] [2020-09-24 22:58:09,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:58:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:10,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:10,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:10,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:10,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:11,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:11,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:11,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:12,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:14,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:14,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 22:58:14,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 22:58:14,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4096 [2020-09-24 22:58:14,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:14,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:58:14,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 245 [2020-09-24 22:58:14,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:58:14,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 22:58:14,658 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 22:58:14,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:58:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:14,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:14,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:14,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 22:58:14,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:14,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 22:58:14,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:14,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:14,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:14,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 22:58:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:14,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:14,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:14,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:58:14,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:14,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:58:14,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:14,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:14,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:14,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:14,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:14,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:58:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:14,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:14,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:14,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:58:14,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:14,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:58:14,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:14,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:14,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:14,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:14,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:14,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 22:58:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:14,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:14,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:14,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 22:58:14,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:14,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 22:58:14,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:14,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:14,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-24 22:58:14,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:58:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:14,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:14,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:14,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:14,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:14,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:58:14,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:14,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:14,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:14,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:14,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:14,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 22:58:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:15,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:15,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:15,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:15,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:15,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:15,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 22:58:15,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:58:15,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 22:58:15,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:15,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:15,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 22:58:15,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:15,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:15,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:58:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:15,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:15,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:15,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:15,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:15,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:58:15,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:15,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:15,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:15,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:15,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:15,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 22:58:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:15,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:15,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:15,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:15,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:15,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:15,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 22:58:15,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:58:15,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-24 22:58:15,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:15,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:15,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 22:58:15,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:15,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:15,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:58:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:15,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:15,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:15,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:15,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:15,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:58:15,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:15,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:15,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:15,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:15,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:15,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:58:15,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685493002] [2020-09-24 22:58:15,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:58:15,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 22:58:15,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406113091] [2020-09-24 22:58:15,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 22:58:15,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:58:15,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 22:58:15,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-24 22:58:15,448 INFO L87 Difference]: Start difference. First operand 574 states. Second operand 11 states. [2020-09-24 22:58:17,965 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-24 22:58:18,130 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-24 22:58:19,295 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-24 22:58:20,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:58:20,022 INFO L93 Difference]: Finished difference Result 1020 states and 1270 transitions. [2020-09-24 22:58:20,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 22:58:20,024 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 228 [2020-09-24 22:58:20,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:58:20,047 INFO L225 Difference]: With dead ends: 1020 [2020-09-24 22:58:20,047 INFO L226 Difference]: Without dead ends: 569 [2020-09-24 22:58:20,056 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=201, Invalid=399, Unknown=0, NotChecked=0, Total=600 [2020-09-24 22:58:20,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-09-24 22:58:20,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 567. [2020-09-24 22:58:20,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2020-09-24 22:58:20,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 671 transitions. [2020-09-24 22:58:20,175 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 671 transitions. Word has length 228 [2020-09-24 22:58:20,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:58:20,176 INFO L479 AbstractCegarLoop]: Abstraction has 567 states and 671 transitions. [2020-09-24 22:58:20,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 22:58:20,176 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 671 transitions. [2020-09-24 22:58:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-09-24 22:58:20,185 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:58:20,186 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] [2020-09-24 22:58:20,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:58:20,187 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:58:20,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:58:20,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1715458180, now seen corresponding path program 1 times [2020-09-24 22:58:20,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:58:20,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335785661] [2020-09-24 22:58:20,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:58:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:20,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:20,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:23,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:24,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:25,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:25,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-09-24 22:58:25,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:58:25,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-24 22:58:25,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:25,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:58:25,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 326 [2020-09-24 22:58:25,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:58:25,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:25,591 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 22:58:25,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:58:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:25,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:25,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:25,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 22:58:25,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:25,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 22:58:25,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:25,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:25,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:25,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:25,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:25,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 22:58:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:25,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:25,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:25,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:58:25,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:25,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:58:25,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:25,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:25,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:25,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:25,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:25,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:58:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:25,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:25,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:25,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:58:25,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:25,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:58:25,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:25,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:25,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:25,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:25,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:25,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 22:58:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:25,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:25,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:25,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 22:58:25,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:25,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 22:58:25,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:25,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:25,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:25,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:25,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:25,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:58:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:25,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:25,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:25,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:25,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:25,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:58:25,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:25,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:25,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:25,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 22:58:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:25,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:25,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:25,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 22:58:25,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:25,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 22:58:25,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:25,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:25,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:25,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:25,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:25,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:58:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:25,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:25,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:25,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:25,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:25,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:58:25,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:25,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:25,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:25,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:25,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:25,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 22:58:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:25,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:25,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:25,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 22:58:25,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:25,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 22:58:25,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:25,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:25,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:25,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:58:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:25,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:25,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:25,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:25,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:25,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:58:25,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:25,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:25,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:25,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:25,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:26,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 22:58:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:26,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:26,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:26,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 22:58:26,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:26,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 22:58:26,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:26,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:26,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:26,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:26,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:26,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 22:58:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:26,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:26,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:26,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:58:26,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:26,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:58:26,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:26,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:26,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:26,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:26,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:26,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 22:58:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:26,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:26,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:26,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:26,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:26,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:58:26,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:26,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:26,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:26,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:26,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:26,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-09-24 22:58:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:26,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:26,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:26,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:58:26,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:26,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:58:26,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:26,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:26,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:26,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:26,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:26,184 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 22:58:26,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335785661] [2020-09-24 22:58:26,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:58:26,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 22:58:26,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611269874] [2020-09-24 22:58:26,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 22:58:26,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:58:26,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 22:58:26,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:58:26,191 INFO L87 Difference]: Start difference. First operand 567 states and 671 transitions. Second operand 13 states. [2020-09-24 22:58:28,540 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-09-24 22:58:29,154 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-24 22:58:29,364 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-09-24 22:58:30,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:58:30,726 INFO L93 Difference]: Finished difference Result 999 states and 1197 transitions. [2020-09-24 22:58:30,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-24 22:58:30,727 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 301 [2020-09-24 22:58:30,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:58:30,734 INFO L225 Difference]: With dead ends: 999 [2020-09-24 22:58:30,734 INFO L226 Difference]: Without dead ends: 573 [2020-09-24 22:58:30,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2020-09-24 22:58:30,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-09-24 22:58:30,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2020-09-24 22:58:30,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-09-24 22:58:30,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 676 transitions. [2020-09-24 22:58:30,786 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 676 transitions. Word has length 301 [2020-09-24 22:58:30,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:58:30,787 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 676 transitions. [2020-09-24 22:58:30,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 22:58:30,787 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 676 transitions. [2020-09-24 22:58:30,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-09-24 22:58:30,794 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:58:30,794 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] [2020-09-24 22:58:30,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:58:30,795 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:58:30,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:58:30,795 INFO L82 PathProgramCache]: Analyzing trace with hash -160047041, now seen corresponding path program 1 times [2020-09-24 22:58:30,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:58:30,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039302825] [2020-09-24 22:58:30,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:58:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:30,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:31,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:34,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:34,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:35,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:35,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-09-24 22:58:35,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:58:35,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-24 22:58:35,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:35,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:58:35,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 339 [2020-09-24 22:58:35,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:58:35,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:36,165 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 22:58:36,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:58:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:36,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:36,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:36,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 22:58:36,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:36,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 22:58:36,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:36,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:36,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:36,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:36,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:36,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 22:58:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:36,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:36,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:36,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:58:36,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:36,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:58:36,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:36,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:36,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:36,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:36,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:36,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:58:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:36,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:36,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:36,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:58:36,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:36,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:58:36,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:36,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:36,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:36,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:36,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:36,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 22:58:36,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:36,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:36,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:36,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 22:58:36,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:36,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 22:58:36,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:36,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:36,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:36,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:36,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:36,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:58:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:36,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:36,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:36,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:36,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:36,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:58:36,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:36,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:36,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:36,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 22:58:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:36,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:36,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:36,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 22:58:36,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:36,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 22:58:36,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:36,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:36,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:36,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:36,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:36,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:58:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:36,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:36,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:36,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:36,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:36,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:58:36,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:36,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:36,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:36,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:36,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:36,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 22:58:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:36,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:36,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:36,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 22:58:36,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:36,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 22:58:36,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:36,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:36,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:36,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:36,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:36,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:58:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:36,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:36,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:36,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:36,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:36,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:58:36,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:36,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:36,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:36,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:36,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:36,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 22:58:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:36,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:36,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:36,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 22:58:36,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:36,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 22:58:36,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:36,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:36,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:36,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:36,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:36,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 22:58:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:36,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:36,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:36,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:58:36,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:36,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:58:36,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:36,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:36,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:36,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:36,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:36,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 22:58:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:36,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:36,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:36,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:36,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:36,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:58:36,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:36,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:36,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:36,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:36,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-09-24 22:58:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:36,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:36,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:36,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:58:36,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:36,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:58:36,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:36,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:36,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:36,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:36,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:36,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2020-09-24 22:58:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:36,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:36,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:36,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:36,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:36,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:58:36,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:36,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:36,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:36,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:36,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:36,905 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 22:58:36,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039302825] [2020-09-24 22:58:36,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:58:36,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 22:58:36,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396613221] [2020-09-24 22:58:36,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 22:58:36,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:58:36,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 22:58:36,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:58:36,909 INFO L87 Difference]: Start difference. First operand 573 states and 676 transitions. Second operand 13 states. [2020-09-24 22:58:37,036 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-24 22:58:40,087 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-24 22:58:40,291 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-09-24 22:58:41,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:58:41,433 INFO L93 Difference]: Finished difference Result 1011 states and 1210 transitions. [2020-09-24 22:58:41,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-24 22:58:41,434 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 312 [2020-09-24 22:58:41,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:58:41,440 INFO L225 Difference]: With dead ends: 1011 [2020-09-24 22:58:41,441 INFO L226 Difference]: Without dead ends: 579 [2020-09-24 22:58:41,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2020-09-24 22:58:41,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2020-09-24 22:58:41,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2020-09-24 22:58:41,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2020-09-24 22:58:41,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 681 transitions. [2020-09-24 22:58:41,479 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 681 transitions. Word has length 312 [2020-09-24 22:58:41,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:58:41,480 INFO L479 AbstractCegarLoop]: Abstraction has 579 states and 681 transitions. [2020-09-24 22:58:41,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 22:58:41,480 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 681 transitions. [2020-09-24 22:58:41,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-09-24 22:58:41,486 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:58:41,487 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:58:41,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:58:41,487 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:58:41,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:58:41,487 INFO L82 PathProgramCache]: Analyzing trace with hash -17901918, now seen corresponding path program 1 times [2020-09-24 22:58:41,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:58:41,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1626221877] [2020-09-24 22:58:41,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:58:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:41,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:41,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:42,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:46,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:46,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-09-24 22:58:46,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:58:46,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-24 22:58:46,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:46,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:58:46,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-09-24 22:58:46,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-24 22:58:46,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:46,832 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 22:58:46,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:58:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:46,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:46,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:46,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 22:58:46,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:46,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 22:58:46,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:46,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:46,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:46,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:46,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:46,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 22:58:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:46,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:46,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:46,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:58:46,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:46,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:58:46,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:46,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:46,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:46,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:46,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:46,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 22:58:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:46,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:46,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:46,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:58:46,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:46,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:58:46,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:46,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:46,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:46,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 22:58:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:46,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:46,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:46,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 22:58:46,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:46,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 22:58:46,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:46,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:46,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:46,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:46,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:46,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:58:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:46,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:47,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:47,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:47,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:47,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:58:47,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:47,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:47,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:47,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:47,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:47,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 22:58:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:47,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:47,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:47,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 22:58:47,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:47,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 22:58:47,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:58:47,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:47,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 22:58:47,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:47,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:58:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:47,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:47,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:47,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:47,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:47,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:58:47,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:47,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:47,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:47,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:47,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:47,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 22:58:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:47,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:47,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:47,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 22:58:47,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:47,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 22:58:47,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:47,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:58:47,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:47,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 22:58:47,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:47,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:58:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:47,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:47,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:47,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:47,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:47,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:58:47,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:47,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:47,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:47,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:47,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:47,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 22:58:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:47,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:47,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:47,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 22:58:47,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:47,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 22:58:47,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:47,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:58:47,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:47,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 22:58:47,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:47,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 22:58:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:47,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:47,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:47,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:58:47,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:47,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:58:47,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:47,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:47,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:47,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:47,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:47,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 22:58:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:47,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:47,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:47,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:47,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:47,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:58:47,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:47,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:47,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:58:47,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:47,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:47,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-09-24 22:58:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:47,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:47,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:47,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:58:47,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:47,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:58:47,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:47,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:47,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 22:58:47,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:47,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:47,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2020-09-24 22:58:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:47,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:47,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:47,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:47,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:47,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:58:47,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:47,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:47,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 22:58:47,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:47,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:58:47,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2020-09-24 22:58:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:47,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:47,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:58:47,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:58:47,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:58:47,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:58:47,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:58:47,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:58:47,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 22:58:47,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:58:47,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:58:47,689 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 22:58:47,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1626221877] [2020-09-24 22:58:47,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:58:47,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 22:58:47,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921264968] [2020-09-24 22:58:47,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 22:58:47,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:58:47,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 22:58:47,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-24 22:58:47,692 INFO L87 Difference]: Start difference. First operand 579 states and 681 transitions. Second operand 12 states. [2020-09-24 22:58:49,430 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-24 22:58:53,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:58:53,344 INFO L93 Difference]: Finished difference Result 1393 states and 1665 transitions. [2020-09-24 22:58:53,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-24 22:58:53,344 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 322 [2020-09-24 22:58:53,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:58:53,353 INFO L225 Difference]: With dead ends: 1393 [2020-09-24 22:58:53,353 INFO L226 Difference]: Without dead ends: 955 [2020-09-24 22:58:53,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=347, Invalid=843, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 22:58:53,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2020-09-24 22:58:53,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 916. [2020-09-24 22:58:53,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 916 states. [2020-09-24 22:58:53,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1094 transitions. [2020-09-24 22:58:53,437 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1094 transitions. Word has length 322 [2020-09-24 22:58:53,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:58:53,438 INFO L479 AbstractCegarLoop]: Abstraction has 916 states and 1094 transitions. [2020-09-24 22:58:53,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 22:58:53,439 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1094 transitions. [2020-09-24 22:58:53,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-09-24 22:58:53,442 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:58:53,443 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:58:53,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:58:53,443 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:58:53,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:58:53,444 INFO L82 PathProgramCache]: Analyzing trace with hash -2141396202, now seen corresponding path program 1 times [2020-09-24 22:58:53,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:58:53,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302960788] [2020-09-24 22:58:53,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:58:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:58:53,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:53,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:53,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:54,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:58:54,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking...