/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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:12:44,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:12:44,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:12:44,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:12:44,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:12:44,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:12:44,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:12:44,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:12:44,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:12:44,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:12:44,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:12:44,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:12:44,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:12:44,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:12:44,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:12:44,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:12:44,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:12:44,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:12:44,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:12:44,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:12:44,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:12:44,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:12:44,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:12:44,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:12:44,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:12:44,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:12:44,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:12:44,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:12:44,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:12:44,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:12:44,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:12:44,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:12:44,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:12:44,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:12:44,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:12:44,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:12:44,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:12:44,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:12:44,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:12:44,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:12:44,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:12:44,607 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 16:12:44,658 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:12:44,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:12:44,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:12:44,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:12:44,661 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:12:44,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:12:44,662 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:12:44,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:12:44,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:12:44,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:12:44,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:12:44,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:12:44,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:12:44,665 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:12:44,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:12:44,665 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:12:44,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:12:44,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:12:44,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:12:44,666 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:12:44,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:12:44,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:12:44,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:12:44,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:12:44,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:12:44,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:12:44,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:12:44,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:12:44,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:12:44,668 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:12:45,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:12:45,132 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:12:45,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:12:45,138 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:12:45,139 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:12:45,140 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-09-24 16:12:45,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b3218232e/fe190548ffcf48a3bd61d4bdc966d99b/FLAGe47347380 [2020-09-24 16:12:45,889 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:12:45,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-09-24 16:12:45,919 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b3218232e/fe190548ffcf48a3bd61d4bdc966d99b/FLAGe47347380 [2020-09-24 16:12:46,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b3218232e/fe190548ffcf48a3bd61d4bdc966d99b [2020-09-24 16:12:46,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:12:46,150 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:12:46,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:12:46,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:12:46,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:12:46,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:12:46" (1/1) ... [2020-09-24 16:12:46,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ed4b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:46, skipping insertion in model container [2020-09-24 16:12:46,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:12:46" (1/1) ... [2020-09-24 16:12:46,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:12:46,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:12:46,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:12:46,589 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:12:46,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:12:46,784 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:12:46,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:46 WrapperNode [2020-09-24 16:12:46,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:12:46,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:12:46,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:12:46,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:12:46,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:46" (1/1) ... [2020-09-24 16:12:46,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:46" (1/1) ... [2020-09-24 16:12:46,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:46" (1/1) ... [2020-09-24 16:12:46,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:46" (1/1) ... [2020-09-24 16:12:46,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:46" (1/1) ... [2020-09-24 16:12:46,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:46" (1/1) ... [2020-09-24 16:12:46,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:46" (1/1) ... [2020-09-24 16:12:46,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:12:46,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:12:46,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:12:46,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:12:46,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:46" (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 16:12:46,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:12:46,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:12:46,963 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 16:12:46,963 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-09-24 16:12:46,963 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-09-24 16:12:46,964 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-09-24 16:12:46,964 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-09-24 16:12:46,964 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-09-24 16:12:46,966 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-09-24 16:12:46,966 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-09-24 16:12:46,966 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-09-24 16:12:46,966 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-09-24 16:12:46,967 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-09-24 16:12:46,967 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-09-24 16:12:46,967 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-09-24 16:12:46,968 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-09-24 16:12:46,968 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-09-24 16:12:46,968 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-09-24 16:12:46,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:12:46,969 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-09-24 16:12:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:12:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 16:12:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 16:12:46,970 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-09-24 16:12:46,970 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-09-24 16:12:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-09-24 16:12:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 16:12:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 16:12:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-09-24 16:12:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-09-24 16:12:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-09-24 16:12:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-09-24 16:12:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-09-24 16:12:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-09-24 16:12:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-09-24 16:12:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-09-24 16:12:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-24 16:12:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-09-24 16:12:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-09-24 16:12:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-09-24 16:12:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-09-24 16:12:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-09-24 16:12:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-24 16:12:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:12:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:12:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:12:48,087 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:12:48,088 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 16:12:48,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:12:48 BoogieIcfgContainer [2020-09-24 16:12:48,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:12:48,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:12:48,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:12:48,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:12:48,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:12:46" (1/3) ... [2020-09-24 16:12:48,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b9f1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:12:48, skipping insertion in model container [2020-09-24 16:12:48,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:12:46" (2/3) ... [2020-09-24 16:12:48,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b9f1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:12:48, skipping insertion in model container [2020-09-24 16:12:48,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:12:48" (3/3) ... [2020-09-24 16:12:48,109 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2020-09-24 16:12:48,122 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:12:48,134 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:12:48,157 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:12:48,195 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:12:48,195 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:12:48,195 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:12:48,196 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:12:48,196 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:12:48,196 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:12:48,196 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:12:48,196 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:12:48,233 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states. [2020-09-24 16:12:48,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-09-24 16:12:48,259 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:12:48,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:12:48,262 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:12:48,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:12:48,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1455574608, now seen corresponding path program 1 times [2020-09-24 16:12:48,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:12:48,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779710940] [2020-09-24 16:12:48,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:12:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:48,711 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:48,711 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:48,712 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:48,712 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:48,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 16:12:48,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:48,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 16:12:48,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:48,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:12:48,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-09-24 16:12:48,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:12:48,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:49,074 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 16:12:49,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:12:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:49,090 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:49,090 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:49,090 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:49,090 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:49,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 16:12:49,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:49,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:49,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:49,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:49,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:49,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:49,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:49,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 16:12:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:49,150 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:49,151 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:49,151 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:49,151 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:49,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:12:49,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:49,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:12:49,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:49,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:12:49,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:49,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:12:49,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:49,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:12:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:49,200 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:49,201 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:49,201 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:49,201 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:49,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:12:49,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:49,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:12:49,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:49,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:12:49,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 16:12:49,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:12:49,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:49,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 16:12:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:49,309 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:49,309 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:49,309 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:49,310 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:49,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 16:12:49,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:49,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:12:49,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:49,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:49,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 16:12:49,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:49,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:49,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 16:12:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:49,380 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:49,380 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:49,380 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:49,380 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:49,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:49,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:49,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:49,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:49,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:49,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:49,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:49,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:49,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 16:12:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:49,463 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:49,464 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:49,464 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:49,464 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:49,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:12:49,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:49,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:12:49,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:49,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:49,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-24 16:12:49,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:49,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:49,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:12:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:49,527 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:49,527 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:49,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:49,528 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:49,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:49,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:49,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:12:49,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:49,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:49,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:49,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:49,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 33 [2020-09-24 16:12:49,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 16:12:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:49,631 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:49,631 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:49,631 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:49,631 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:49,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:12:49,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:49,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:49,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:49,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:49,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-24 16:12:49,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:49,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:49,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:12:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:49,682 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:49,683 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:49,683 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:49,683 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:49,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:49,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:49,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:12:49,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:49,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:49,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:49,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:49,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:49,751 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 16:12:49,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779710940] [2020-09-24 16:12:49,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:12:49,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 16:12:49,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561216230] [2020-09-24 16:12:49,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 16:12:49,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:12:49,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 16:12:49,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-09-24 16:12:49,795 INFO L87 Difference]: Start difference. First operand 577 states. Second operand 14 states. [2020-09-24 16:12:50,565 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-24 16:12:50,935 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-24 16:12:51,142 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-24 16:12:55,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:12:55,170 INFO L93 Difference]: Finished difference Result 1058 states and 1321 transitions. [2020-09-24 16:12:55,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 16:12:55,172 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 228 [2020-09-24 16:12:55,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:12:55,214 INFO L225 Difference]: With dead ends: 1058 [2020-09-24 16:12:55,214 INFO L226 Difference]: Without dead ends: 581 [2020-09-24 16:12:55,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2020-09-24 16:12:55,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-09-24 16:12:55,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 553. [2020-09-24 16:12:55,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-09-24 16:12:55,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 646 transitions. [2020-09-24 16:12:55,387 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 646 transitions. Word has length 228 [2020-09-24 16:12:55,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:12:55,388 INFO L479 AbstractCegarLoop]: Abstraction has 553 states and 646 transitions. [2020-09-24 16:12:55,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 16:12:55,388 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 646 transitions. [2020-09-24 16:12:55,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-24 16:12:55,395 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:12:55,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:12:55,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:12:55,396 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:12:55,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:12:55,397 INFO L82 PathProgramCache]: Analyzing trace with hash 503549649, now seen corresponding path program 1 times [2020-09-24 16:12:55,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:12:55,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583114827] [2020-09-24 16:12:55,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:12:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:55,530 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:55,531 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:55,531 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:55,531 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:55,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-24 16:12:55,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:55,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:12:55,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:55,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:12:55,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-09-24 16:12:55,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:12:55,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:55,794 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 16:12:55,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:12:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:55,801 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:55,802 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:55,802 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:55,802 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:55,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 16:12:55,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:55,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:55,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:55,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:55,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:55,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:55,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:55,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 16:12:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:55,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:55,838 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:55,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:55,839 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:55,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:12:55,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:55,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:55,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:55,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:55,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:55,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:55,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:55,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 16:12:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:55,849 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:55,850 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:55,850 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:55,850 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:55,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:12:55,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:55,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:55,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:55,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:55,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:55,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:55,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:55,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:12:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:55,873 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:55,874 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:55,874 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:55,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:55,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 16:12:55,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:55,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:55,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:55,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:55,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:55,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:55,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:55,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 16:12:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:55,900 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:55,900 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:55,900 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:55,900 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:55,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:55,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:55,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:55,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:55,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:55,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:55,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:55,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:55,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 16:12:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:55,940 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:55,940 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:55,940 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:55,940 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:55,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:12:55,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:55,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:55,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:55,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:55,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:55,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:55,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:55,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:12:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:55,976 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:55,976 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:55,977 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:55,977 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:55,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:55,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:55,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:55,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:55,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:55,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:55,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:55,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:56,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 16:12:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:56,040 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:56,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:56,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:56,041 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:56,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:12:56,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:56,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:56,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:56,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:56,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:56,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:56,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:12:56,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:12:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:12:56,084 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:12:56,085 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:12:56,085 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:12:56,085 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:12:56,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:12:56,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:12:56,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:12:56,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:12:56,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:12:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:12:56,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:12:56,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:12:56,202 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 16:12:56,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583114827] [2020-09-24 16:12:56,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:12:56,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 16:12:56,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903776118] [2020-09-24 16:12:56,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 16:12:56,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:12:56,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 16:12:56,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:12:56,208 INFO L87 Difference]: Start difference. First operand 553 states and 646 transitions. Second operand 11 states. [2020-09-24 16:12:56,384 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-09-24 16:12:58,323 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-24 16:12:58,514 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-24 16:12:59,569 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-24 16:13:00,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:13:00,341 INFO L93 Difference]: Finished difference Result 984 states and 1176 transitions. [2020-09-24 16:13:00,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 16:13:00,342 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 239 [2020-09-24 16:13:00,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:13:00,358 INFO L225 Difference]: With dead ends: 984 [2020-09-24 16:13:00,358 INFO L226 Difference]: Without dead ends: 560 [2020-09-24 16:13:00,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=201, Invalid=399, Unknown=0, NotChecked=0, Total=600 [2020-09-24 16:13:00,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-09-24 16:13:00,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 558. [2020-09-24 16:13:00,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-09-24 16:13:00,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 650 transitions. [2020-09-24 16:13:00,434 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 650 transitions. Word has length 239 [2020-09-24 16:13:00,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:13:00,438 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 650 transitions. [2020-09-24 16:13:00,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 16:13:00,438 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 650 transitions. [2020-09-24 16:13:00,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-09-24 16:13:00,445 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:13:00,446 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 16:13:00,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:13:00,447 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:13:00,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:13:00,447 INFO L82 PathProgramCache]: Analyzing trace with hash -734642201, now seen corresponding path program 1 times [2020-09-24 16:13:00,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:13:00,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669537695] [2020-09-24 16:13:00,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:13:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:00,568 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:00,569 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:00,569 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:00,569 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:00,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 349 [2020-09-24 16:13:00,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:00,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 16:13:00,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:00,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:13:00,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 16:13:00,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-09-24 16:13:00,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:00,912 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 16:13:00,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:13:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:00,933 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:00,933 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:00,933 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:00,935 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:00,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 16:13:00,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:00,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:00,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:00,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:13:00,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:00,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 16:13:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:01,001 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:01,002 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:01,002 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:01,002 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:01,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:13:01,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:01,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:01,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:01,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:01,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:01,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 16:13:01,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:01,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 16:13:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:01,020 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:01,021 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:01,021 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:01,021 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:01,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:13:01,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:01,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:13:01,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:01,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:01,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:01,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:13:01,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:01,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:13:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:01,055 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:01,055 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:01,055 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:01,055 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:01,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 16:13:01,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:01,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:01,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:01,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:01,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:01,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 16:13:01,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:01,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 16:13:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:01,084 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:01,084 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:01,085 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:01,085 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:01,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:01,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:01,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:01,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:01,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:01,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:01,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:01,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:01,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 16:13:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:01,129 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:01,129 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:01,129 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:01,130 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:01,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:13:01,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:01,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:01,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:01,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:01,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:01,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 16:13:01,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:01,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:13:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:01,163 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:01,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:01,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:01,164 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:01,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:01,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:01,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:01,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:01,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:01,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:01,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:01,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:01,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 16:13:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:01,213 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:01,214 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:01,214 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:01,214 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:01,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:13:01,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:01,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:01,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:01,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:01,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:01,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 16:13:01,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:01,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:13:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:01,256 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:01,256 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:01,257 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:01,257 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:01,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:01,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:01,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:01,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:01,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:01,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:01,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:01,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:01,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 16:13:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:01,307 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:01,307 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:01,308 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:01,308 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:01,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 16:13:01,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:01,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:13:01,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:01,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:13:01,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:13:01,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 16:13:01,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:01,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 16:13:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:01,448 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:01,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:01,451 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:01,451 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:01,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:13:01,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:01,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:13:01,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:01,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:01,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:01,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:13:01,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:01,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 16:13:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:01,496 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:01,498 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:01,498 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:01,499 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:01,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:01,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:01,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:13:01,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:01,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:13:01,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:01,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-09-24 16:13:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:01,514 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:01,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:01,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:01,515 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:01,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:13:01,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:01,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:01,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:01,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:01,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:13:01,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:01,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:01,864 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 16:13:01,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669537695] [2020-09-24 16:13:01,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:13:01,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-09-24 16:13:01,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096474967] [2020-09-24 16:13:01,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 16:13:01,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:13:01,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 16:13:01,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-09-24 16:13:01,868 INFO L87 Difference]: Start difference. First operand 558 states and 650 transitions. Second operand 16 states. [2020-09-24 16:13:02,012 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-09-24 16:13:02,642 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-24 16:13:03,564 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-09-24 16:13:05,054 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 141 [2020-09-24 16:13:05,997 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-24 16:13:08,037 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-09-24 16:13:08,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:13:08,562 INFO L93 Difference]: Finished difference Result 1187 states and 1396 transitions. [2020-09-24 16:13:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-24 16:13:08,563 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 312 [2020-09-24 16:13:08,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:13:08,572 INFO L225 Difference]: With dead ends: 1187 [2020-09-24 16:13:08,572 INFO L226 Difference]: Without dead ends: 758 [2020-09-24 16:13:08,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=563, Invalid=1599, Unknown=0, NotChecked=0, Total=2162 [2020-09-24 16:13:08,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-09-24 16:13:08,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 750. [2020-09-24 16:13:08,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-09-24 16:13:08,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 867 transitions. [2020-09-24 16:13:08,638 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 867 transitions. Word has length 312 [2020-09-24 16:13:08,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:13:08,639 INFO L479 AbstractCegarLoop]: Abstraction has 750 states and 867 transitions. [2020-09-24 16:13:08,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 16:13:08,640 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 867 transitions. [2020-09-24 16:13:08,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-09-24 16:13:08,645 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:13:08,646 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:13:08,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:13:08,647 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:13:08,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:13:08,647 INFO L82 PathProgramCache]: Analyzing trace with hash 679708041, now seen corresponding path program 1 times [2020-09-24 16:13:08,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:13:08,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [240316314] [2020-09-24 16:13:08,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:13:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:08,811 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:08,811 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:08,812 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:08,812 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:08,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 350 [2020-09-24 16:13:08,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:08,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 16:13:08,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:08,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:13:08,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 16:13:08,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-09-24 16:13:08,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:09,080 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 16:13:09,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:13:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:09,093 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:09,093 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:09,094 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:09,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:09,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 16:13:09,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:09,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:09,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:09,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:09,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:09,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:13:09,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:09,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 16:13:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:09,148 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:09,149 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:09,149 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:09,149 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:09,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:13:09,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:09,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:09,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:09,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:09,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:09,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 16:13:09,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:09,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 16:13:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:09,161 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:09,161 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:09,161 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:09,161 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:09,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:13:09,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:09,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:09,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:09,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:13:09,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:09,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:13:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:09,190 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:09,190 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:09,191 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:09,191 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:09,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 16:13:09,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:09,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:09,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:09,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 16:13:09,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:09,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 16:13:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:09,217 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:09,217 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:09,218 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:09,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:09,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:09,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:09,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:09,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:09,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:09,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 16:13:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:09,267 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:09,267 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:09,268 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:09,268 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:09,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:13:09,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:09,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:09,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:09,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:09,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:09,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 16:13:09,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:09,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:13:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:09,298 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:09,298 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:09,299 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:09,299 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:09,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:09,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:09,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:09,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:09,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:09,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:09,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:09,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:09,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 16:13:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:09,351 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:09,352 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:09,352 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:09,352 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:09,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:13:09,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:09,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:09,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:09,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:09,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:09,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 16:13:09,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:09,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:13:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:09,384 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:09,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:09,385 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:09,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:09,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:09,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:09,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:09,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:09,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:09,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:09,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:09,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:09,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 16:13:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:09,427 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:09,427 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:09,428 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:09,428 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:09,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-24 16:13:09,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:09,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:13:09,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:13:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:13:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 16:13:09,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:09,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 16:13:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:09,512 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:09,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:09,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:09,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:09,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:13:09,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:09,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:13:09,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:09,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:09,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:09,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:13:09,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:09,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-24 16:13:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:09,544 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:09,544 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:09,544 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:09,545 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:09,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:09,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:09,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:09,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:09,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:09,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:09,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:13:09,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:09,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-09-24 16:13:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:09,553 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:09,553 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:09,554 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:09,554 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:09,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:13:09,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:09,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:09,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:09,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:09,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:13:09,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:09,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:09,693 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 16:13:09,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [240316314] [2020-09-24 16:13:09,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:13:09,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-09-24 16:13:09,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34742320] [2020-09-24 16:13:09,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 16:13:09,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:13:09,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 16:13:09,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-09-24 16:13:09,699 INFO L87 Difference]: Start difference. First operand 750 states and 867 transitions. Second operand 16 states. [2020-09-24 16:13:10,417 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-24 16:13:10,547 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-09-24 16:13:12,578 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 141 [2020-09-24 16:13:12,715 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-09-24 16:13:13,515 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-24 16:13:15,633 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-09-24 16:13:15,770 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-09-24 16:13:16,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:13:16,359 INFO L93 Difference]: Finished difference Result 1195 states and 1406 transitions. [2020-09-24 16:13:16,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-24 16:13:16,360 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 313 [2020-09-24 16:13:16,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:13:16,365 INFO L225 Difference]: With dead ends: 1195 [2020-09-24 16:13:16,365 INFO L226 Difference]: Without dead ends: 763 [2020-09-24 16:13:16,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=603, Invalid=1749, Unknown=0, NotChecked=0, Total=2352 [2020-09-24 16:13:16,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2020-09-24 16:13:16,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 750. [2020-09-24 16:13:16,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 750 states. [2020-09-24 16:13:16,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 867 transitions. [2020-09-24 16:13:16,417 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 867 transitions. Word has length 313 [2020-09-24 16:13:16,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:13:16,418 INFO L479 AbstractCegarLoop]: Abstraction has 750 states and 867 transitions. [2020-09-24 16:13:16,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 16:13:16,418 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 867 transitions. [2020-09-24 16:13:16,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-09-24 16:13:16,423 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:13:16,424 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:13:16,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:13:16,424 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:13:16,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:13:16,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1399853749, now seen corresponding path program 1 times [2020-09-24 16:13:16,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:13:16,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262991512] [2020-09-24 16:13:16,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:13:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:16,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:16,523 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:16,523 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:16,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:16,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 352 [2020-09-24 16:13:16,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:16,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:16,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:16,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:16,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-09-24 16:13:16,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-24 16:13:16,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:16,794 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 16:13:16,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:13:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:16,801 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:16,802 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:16,802 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:16,802 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:16,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 16:13:16,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:16,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:16,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:16,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:16,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:16,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:16,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:16,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 16:13:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:16,827 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:16,827 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:16,827 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:16,827 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:16,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:13:16,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:16,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:16,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:16,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:16,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:16,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:16,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:16,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 16:13:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:16,838 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:16,838 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:16,838 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:16,839 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:16,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:13:16,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:16,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:16,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:16,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:16,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:16,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:16,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:16,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:13:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:16,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:16,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:16,866 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:16,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:16,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 16:13:16,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:16,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:16,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:16,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:16,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:16,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:16,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:16,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 16:13:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:16,889 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:16,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:16,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:16,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:16,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:16,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:16,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:16,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:16,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:16,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:16,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:16,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:16,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 16:13:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:16,936 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:16,936 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:16,936 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:16,937 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:16,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:13:16,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:16,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:16,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:16,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:16,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:16,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 16:13:16,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:16,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:13:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:16,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:16,975 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:16,975 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:16,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:16,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:16,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:16,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:16,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:16,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:16,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:16,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:16,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:17,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 16:13:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:17,022 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:17,022 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:17,023 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:17,023 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:17,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:13:17,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:17,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:17,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:17,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:17,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:17,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 16:13:17,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:17,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:13:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:17,056 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:17,057 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:17,057 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:17,057 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:17,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:17,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:17,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:17,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:17,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:17,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:17,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:17,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:17,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 16:13:17,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:17,104 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:17,104 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:17,104 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:17,105 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:17,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:13:17,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:17,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:13:17,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:17,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:17,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:17,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 16:13:17,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:17,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 16:13:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:17,121 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:17,121 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:17,122 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:17,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:17,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:13:17,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:17,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:17,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:17,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:17,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:17,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:17,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:17,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 16:13:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:17,156 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:17,158 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:17,159 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:17,159 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:17,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:17,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:17,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:13:17,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:17,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:17,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2020-09-24 16:13:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:17,171 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:17,171 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:17,171 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:17,172 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:17,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:13:17,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:17,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:17,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:17,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:17,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:13:17,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:17,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:17,380 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 16:13:17,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262991512] [2020-09-24 16:13:17,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:13:17,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 16:13:17,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858234260] [2020-09-24 16:13:17,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 16:13:17,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:13:17,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 16:13:17,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-24 16:13:17,385 INFO L87 Difference]: Start difference. First operand 750 states and 867 transitions. Second operand 12 states. [2020-09-24 16:13:17,514 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-24 16:13:19,276 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-24 16:13:23,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:13:23,082 INFO L93 Difference]: Finished difference Result 1642 states and 1947 transitions. [2020-09-24 16:13:23,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-24 16:13:23,083 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 315 [2020-09-24 16:13:23,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:13:23,095 INFO L225 Difference]: With dead ends: 1642 [2020-09-24 16:13:23,095 INFO L226 Difference]: Without dead ends: 1210 [2020-09-24 16:13:23,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=347, Invalid=843, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 16:13:23,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2020-09-24 16:13:23,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1168. [2020-09-24 16:13:23,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1168 states. [2020-09-24 16:13:23,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1376 transitions. [2020-09-24 16:13:23,200 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1376 transitions. Word has length 315 [2020-09-24 16:13:23,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:13:23,201 INFO L479 AbstractCegarLoop]: Abstraction has 1168 states and 1376 transitions. [2020-09-24 16:13:23,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 16:13:23,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1376 transitions. [2020-09-24 16:13:23,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-09-24 16:13:23,206 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:13:23,207 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:13:23,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:13:23,207 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:13:23,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:13:23,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1977685633, now seen corresponding path program 1 times [2020-09-24 16:13:23,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:13:23,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092248737] [2020-09-24 16:13:23,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:13:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:23,283 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:23,283 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:23,283 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:23,283 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:23,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 353 [2020-09-24 16:13:23,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:23,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:23,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:23,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:23,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-09-24 16:13:23,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-24 16:13:23,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:23,504 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 16:13:23,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:13:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:23,512 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:23,512 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:23,512 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:23,513 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:23,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 16:13:23,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:23,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:23,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:23,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:23,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:23,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:23,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:23,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 16:13:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:23,532 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:23,532 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:23,533 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:23,533 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:23,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:13:23,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:23,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:23,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:23,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:23,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:23,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:23,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:23,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 16:13:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:23,541 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:23,542 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:23,542 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:23,542 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:23,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:13:23,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:23,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:23,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:23,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:23,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:23,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:23,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:23,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:13:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:23,570 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:23,570 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:23,570 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:23,571 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:23,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 16:13:23,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:23,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:23,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:23,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:23,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:23,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:23,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:23,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 16:13:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:23,595 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:23,596 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:23,596 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:23,596 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:23,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:23,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:23,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:23,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:23,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:23,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:23,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:23,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:23,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 16:13:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:23,631 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:23,631 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:23,631 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:23,632 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:23,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:13:23,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:23,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:23,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:23,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:23,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:23,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:13:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:23,660 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:23,660 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:23,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:23,661 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:23,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:23,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:23,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:23,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:23,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:23,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:23,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:23,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:23,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 16:13:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:23,707 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:23,707 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:23,707 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:23,707 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:23,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:13:23,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:23,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:23,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:23,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:23,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 16:13:23,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:23,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:13:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:23,751 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:23,751 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:23,752 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:23,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:23,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:23,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:23,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:23,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:23,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:23,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:23,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:23,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:23,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 16:13:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:23,787 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:23,788 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:23,788 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:23,788 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:23,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:13:23,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:23,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:13:23,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:13:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:23,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 16:13:23,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:23,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 16:13:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:23,799 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:23,799 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:23,800 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:23,800 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:23,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:13:23,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:23,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:23,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:23,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:23,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 16:13:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:23,842 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:23,842 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:23,843 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:23,843 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:23,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:23,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:23,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:23,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:23,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:23,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:23,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:23,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:23,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2020-09-24 16:13:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:23,854 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:23,854 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:23,854 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:23,855 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:23,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:13:23,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:23,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:23,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:23,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:23,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:13:23,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:23,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:24,068 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 16:13:24,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092248737] [2020-09-24 16:13:24,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:13:24,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 16:13:24,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990782693] [2020-09-24 16:13:24,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 16:13:24,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:13:24,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 16:13:24,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-24 16:13:24,076 INFO L87 Difference]: Start difference. First operand 1168 states and 1376 transitions. Second operand 12 states. [2020-09-24 16:13:24,203 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-09-24 16:13:25,163 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-09-24 16:13:26,370 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-24 16:13:29,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:13:29,874 INFO L93 Difference]: Finished difference Result 2588 states and 3126 transitions. [2020-09-24 16:13:29,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-24 16:13:29,875 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 316 [2020-09-24 16:13:29,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:13:29,886 INFO L225 Difference]: With dead ends: 2588 [2020-09-24 16:13:29,886 INFO L226 Difference]: Without dead ends: 1828 [2020-09-24 16:13:29,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=348, Invalid=842, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 16:13:29,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2020-09-24 16:13:29,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1808. [2020-09-24 16:13:29,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1808 states. [2020-09-24 16:13:30,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 2169 transitions. [2020-09-24 16:13:30,003 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 2169 transitions. Word has length 316 [2020-09-24 16:13:30,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:13:30,004 INFO L479 AbstractCegarLoop]: Abstraction has 1808 states and 2169 transitions. [2020-09-24 16:13:30,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 16:13:30,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 2169 transitions. [2020-09-24 16:13:30,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-09-24 16:13:30,007 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:13:30,008 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:13:30,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 16:13:30,008 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:13:30,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:13:30,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1013367263, now seen corresponding path program 1 times [2020-09-24 16:13:30,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:13:30,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [113226679] [2020-09-24 16:13:30,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:13:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:30,091 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 16:13:30,091 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:30,091 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:30,091 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:30,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 353 [2020-09-24 16:13:30,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:30,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:13:30,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:30,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:13:30,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 341 [2020-09-24 16:13:30,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:13:30,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:30,311 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 16:13:30,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:13:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:30,317 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:30,317 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:30,317 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:30,318 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:30,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 16:13:30,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:30,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:30,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:30,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:30,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:30,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:30,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:30,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 16:13:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:30,337 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:30,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:30,338 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:30,338 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:30,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:13:30,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:30,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:30,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:30,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:30,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:30,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:30,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:30,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 16:13:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:30,346 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:30,346 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:30,346 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:30,346 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:30,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:13:30,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:30,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 16:13:30,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:30,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:30,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:30,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:30,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:30,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:13:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:30,372 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:30,373 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:30,373 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:30,373 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:30,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 16:13:30,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:30,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:30,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:30,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:30,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:30,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:30,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:30,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 16:13:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:30,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:30,402 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:30,402 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:30,403 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:30,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:30,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:30,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:30,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:30,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:30,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:30,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:30,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:30,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 16:13:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:30,438 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:30,438 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:30,438 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:30,438 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:30,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:13:30,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:30,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:30,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:30,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:30,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:30,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:30,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:30,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:13:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:30,466 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:30,466 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:30,467 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:30,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:30,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:30,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:30,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:30,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:30,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:30,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:30,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:30,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:30,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 16:13:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:30,506 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:30,507 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:30,507 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:30,507 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:30,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:13:30,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:30,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:30,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:30,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:30,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:30,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:30,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:30,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:13:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:30,537 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:30,538 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:30,539 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:30,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:30,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:30,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:30,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:30,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:30,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:30,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:30,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:30,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:30,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 16:13:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:30,574 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:30,574 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:30,574 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:30,575 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:30,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:13:30,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:30,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:30,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:30,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:30,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:30,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:30,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:30,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 16:13:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:30,588 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:30,589 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:30,589 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:30,589 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:30,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:13:30,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:30,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:30,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:30,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:30,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:30,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:30,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:30,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 16:13:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:30,629 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:30,629 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:30,629 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:30,629 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:30,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:30,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:30,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:30,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:30,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:30,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:30,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:30,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:30,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2020-09-24 16:13:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:30,637 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:30,637 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:30,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:30,638 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:30,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:13:30,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:30,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:30,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:30,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:30,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:30,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:30,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:30,759 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 16:13:30,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [113226679] [2020-09-24 16:13:30,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:13:30,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 16:13:30,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057963558] [2020-09-24 16:13:30,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 16:13:30,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:13:30,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 16:13:30,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-09-24 16:13:30,763 INFO L87 Difference]: Start difference. First operand 1808 states and 2169 transitions. Second operand 13 states. [2020-09-24 16:13:33,644 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-24 16:13:33,811 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-24 16:13:34,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:13:34,940 INFO L93 Difference]: Finished difference Result 3206 states and 3905 transitions. [2020-09-24 16:13:34,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-24 16:13:34,940 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 316 [2020-09-24 16:13:34,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:13:34,950 INFO L225 Difference]: With dead ends: 3206 [2020-09-24 16:13:34,950 INFO L226 Difference]: Without dead ends: 1832 [2020-09-24 16:13:34,956 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2020-09-24 16:13:34,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2020-09-24 16:13:35,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1832. [2020-09-24 16:13:35,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1832 states. [2020-09-24 16:13:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1832 states to 1832 states and 2189 transitions. [2020-09-24 16:13:35,072 INFO L78 Accepts]: Start accepts. Automaton has 1832 states and 2189 transitions. Word has length 316 [2020-09-24 16:13:35,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:13:35,073 INFO L479 AbstractCegarLoop]: Abstraction has 1832 states and 2189 transitions. [2020-09-24 16:13:35,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 16:13:35,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1832 states and 2189 transitions. [2020-09-24 16:13:35,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-09-24 16:13:35,077 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:13:35,077 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:13:35,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 16:13:35,078 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:13:35,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:13:35,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1065816740, now seen corresponding path program 1 times [2020-09-24 16:13:35,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:13:35,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11682102] [2020-09-24 16:13:35,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:13:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:35,158 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 16:13:35,158 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:35,158 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:35,159 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:35,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 366 [2020-09-24 16:13:35,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:35,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:13:35,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:35,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:13:35,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-09-24 16:13:35,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:13:35,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:35,363 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-24 16:13:35,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:13:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:35,368 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:35,368 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:35,369 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:35,369 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:35,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 16:13:35,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:35,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:35,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:35,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:35,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:35,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:35,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:35,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-24 16:13:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:35,389 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:35,389 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:35,390 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:35,390 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:35,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:13:35,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:35,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:35,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:35,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:35,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:35,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:35,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:35,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-24 16:13:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:35,400 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:35,401 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:35,401 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:35,401 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:35,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:13:35,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:35,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:13:35,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:35,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:35,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:35,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:35,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:35,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 16:13:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:35,422 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:35,423 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:35,423 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:35,423 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:35,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 16:13:35,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:35,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:35,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:35,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:35,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:35,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:35,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:35,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 16:13:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:35,443 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:35,444 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:35,444 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:35,444 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:35,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:35,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:35,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:35,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:35,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:35,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:35,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:35,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:35,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 16:13:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:35,481 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:35,481 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:35,481 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:35,481 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:35,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:13:35,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:35,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:35,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:35,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:35,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:35,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:35,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:35,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:13:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:35,507 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:35,507 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:35,507 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:35,507 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:35,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:35,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:35,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:35,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:35,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:35,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:35,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:35,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:35,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 16:13:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:35,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:35,546 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:35,546 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:35,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:35,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-24 16:13:35,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:35,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:35,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:35,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:35,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:35,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:35,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:35,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 16:13:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:35,578 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:35,578 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:35,578 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:35,578 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:35,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:35,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:35,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:35,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:35,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:35,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:35,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:35,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:35,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 16:13:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:35,607 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:35,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:35,607 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:35,608 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:35,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:13:35,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:35,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:35,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:35,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:35,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:35,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:35,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:35,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 16:13:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:35,617 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:35,617 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:35,617 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:35,618 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:35,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:13:35,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:35,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:35,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:35,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:35,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:35,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:35,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:13:35,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 16:13:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:35,645 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:35,645 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:35,645 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:35,645 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:35,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:35,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:35,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:35,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:35,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:35,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:35,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:35,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:35,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2020-09-24 16:13:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:35,652 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:35,652 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:35,652 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:35,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:35,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:13:35,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:35,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:35,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:35,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:35,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:35,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:35,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:35,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2020-09-24 16:13:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:13:35,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:13:35,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:13:35,659 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:13:35,659 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:13:35,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:13:35,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:13:35,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:13:35,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:13:35,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:13:35,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:13:35,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:13:35,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:13:35,806 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 16:13:35,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11682102] [2020-09-24 16:13:35,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:13:35,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 16:13:35,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140315933] [2020-09-24 16:13:35,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 16:13:35,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:13:35,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 16:13:35,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-09-24 16:13:35,816 INFO L87 Difference]: Start difference. First operand 1832 states and 2189 transitions. Second operand 13 states.