/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 --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.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:33:41,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:33:41,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:33:42,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:33:42,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:33:42,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:33:42,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:33:42,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:33:42,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:33:42,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:33:42,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:33:42,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:33:42,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:33:42,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:33:42,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:33:42,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:33:42,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:33:42,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:33:42,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:33:42,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:33:42,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:33:42,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:33:42,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:33:42,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:33:42,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:33:42,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:33:42,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:33:42,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:33:42,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:33:42,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:33:42,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:33:42,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:33:42,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:33:42,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:33:42,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:33:42,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:33:42,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:33:42,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:33:42,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:33:42,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:33:42,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:33:42,071 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 [2020-09-21 11:33:42,098 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:33:42,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:33:42,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:33:42,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:33:42,100 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:33:42,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:33:42,100 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:33:42,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:33:42,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:33:42,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:33:42,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:33:42,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:33:42,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:33:42,102 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:33:42,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:33:42,102 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:33:42,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:33:42,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:33:42,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:33:42,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:33:42,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:33:42,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:33:42,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:33:42,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:33:42,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:33:42,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:33:42,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:33:42,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:33:42,105 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:33:42,105 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.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; [2020-09-21 11:33:42,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:33:42,607 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:33:42,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:33:42,616 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:33:42,618 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:33:42,619 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-09-21 11:33:42,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/231eadffe/915e7d43cb974477a90dd5100e2eb398/FLAGc62848315 [2020-09-21 11:33:43,330 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:33:43,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-09-21 11:33:43,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/231eadffe/915e7d43cb974477a90dd5100e2eb398/FLAGc62848315 [2020-09-21 11:33:43,630 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/231eadffe/915e7d43cb974477a90dd5100e2eb398 [2020-09-21 11:33:43,643 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:33:43,648 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:33:43,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:33:43,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:33:43,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:33:43,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:33:43" (1/1) ... [2020-09-21 11:33:43,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:43, skipping insertion in model container [2020-09-21 11:33:43,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:33:43" (1/1) ... [2020-09-21 11:33:43,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:33:43,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:33:44,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:33:44,178 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:33:44,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:33:44,304 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:33:44,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:44 WrapperNode [2020-09-21 11:33:44,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:33:44,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:33:44,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:33:44,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:33:44,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:44" (1/1) ... [2020-09-21 11:33:44,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:44" (1/1) ... [2020-09-21 11:33:44,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:44" (1/1) ... [2020-09-21 11:33:44,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:44" (1/1) ... [2020-09-21 11:33:44,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:44" (1/1) ... [2020-09-21 11:33:44,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:44" (1/1) ... [2020-09-21 11:33:44,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:44" (1/1) ... [2020-09-21 11:33:44,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:33:44,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:33:44,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:33:44,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:33:44,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:44" (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 [2020-09-21 11:33:44,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:33:44,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:33:44,478 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-21 11:33:44,479 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-09-21 11:33:44,479 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-09-21 11:33:44,479 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-09-21 11:33:44,479 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-09-21 11:33:44,479 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-09-21 11:33:44,480 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-09-21 11:33:44,480 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-09-21 11:33:44,480 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-09-21 11:33:44,480 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-09-21 11:33:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-09-21 11:33:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-09-21 11:33:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-09-21 11:33:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-09-21 11:33:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-09-21 11:33:44,482 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-09-21 11:33:44,482 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:33:44,482 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-09-21 11:33:44,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:33:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-21 11:33:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-21 11:33:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-09-21 11:33:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-09-21 11:33:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-09-21 11:33:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 11:33:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-21 11:33:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-09-21 11:33:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-09-21 11:33:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-09-21 11:33:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-09-21 11:33:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-09-21 11:33:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-09-21 11:33:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-09-21 11:33:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-09-21 11:33:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-09-21 11:33:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-09-21 11:33:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-09-21 11:33:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-09-21 11:33:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-09-21 11:33:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-09-21 11:33:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-21 11:33:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:33:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:33:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:33:45,406 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:33:45,406 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:33:45,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:33:45 BoogieIcfgContainer [2020-09-21 11:33:45,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:33:45,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:33:45,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:33:45,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:33:45,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:33:43" (1/3) ... [2020-09-21 11:33:45,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7a4a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:33:45, skipping insertion in model container [2020-09-21 11:33:45,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:44" (2/3) ... [2020-09-21 11:33:45,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7a4a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:33:45, skipping insertion in model container [2020-09-21 11:33:45,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:33:45" (3/3) ... [2020-09-21 11:33:45,425 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-09-21 11:33:45,438 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:33:45,450 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:33:45,474 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:33:45,509 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:33:45,509 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:33:45,510 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:33:45,510 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:33:45,510 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:33:45,510 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:33:45,510 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:33:45,511 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:33:45,541 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states. [2020-09-21 11:33:45,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-21 11:33:45,554 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:45,556 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] [2020-09-21 11:33:45,557 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:45,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:45,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1549655252, now seen corresponding path program 1 times [2020-09-21 11:33:45,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:45,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510662139] [2020-09-21 11:33:45,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:45,910 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:45,910 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:45,911 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:45,911 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:45,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:33:45,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:45,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:33:45,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:45,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:45,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-21 11:33:45,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:45,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:46,222 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-21 11:33:46,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,239 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,239 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,239 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,240 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:46,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:46,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:46,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,268 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,268 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,268 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,269 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:46,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:46,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:46,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:33:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,283 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,283 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,283 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,284 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:46,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 11:33:46,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:46,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:33:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,345 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,345 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,345 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,345 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:33:46,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:33:46,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:33:46,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:46,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,394 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,394 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,394 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,395 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:46,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:46,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:33:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,447 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,448 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,448 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:33:46,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:33:46,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:46,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,480 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,480 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,480 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,481 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:46,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:46,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:46,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:33:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,535 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,535 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,535 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:33:46,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 11:33:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:46,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:46,568 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:46,569 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:46,569 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:46,569 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:46,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:46,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:46,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:46,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:46,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:46,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:46,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:46,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:46,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:46,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510662139] [2020-09-21 11:33:46,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:46,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:33:46,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074714486] [2020-09-21 11:33:46,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:33:46,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:46,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:33:46,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:33:46,636 INFO L87 Difference]: Start difference. First operand 242 states. Second operand 9 states. [2020-09-21 11:33:48,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:48,363 INFO L93 Difference]: Finished difference Result 456 states and 705 transitions. [2020-09-21 11:33:48,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:33:48,366 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-09-21 11:33:48,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:48,383 INFO L225 Difference]: With dead ends: 456 [2020-09-21 11:33:48,384 INFO L226 Difference]: Without dead ends: 237 [2020-09-21 11:33:48,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:33:48,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-09-21 11:33:48,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2020-09-21 11:33:48,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-09-21 11:33:48,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 342 transitions. [2020-09-21 11:33:48,487 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 342 transitions. Word has length 71 [2020-09-21 11:33:48,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:48,487 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 342 transitions. [2020-09-21 11:33:48,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:33:48,488 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 342 transitions. [2020-09-21 11:33:48,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-21 11:33:48,492 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:48,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:48,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:33:48,493 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:48,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:48,493 INFO L82 PathProgramCache]: Analyzing trace with hash 695502060, now seen corresponding path program 1 times [2020-09-21 11:33:48,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:48,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128927976] [2020-09-21 11:33:48,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,587 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,587 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,588 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:33:48,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:33:48,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:33:48,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:33:48,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:33:48,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:48,819 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-21 11:33:48,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,840 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,840 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:48,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,884 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,885 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,885 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:48,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:33:48,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:33:48,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:48,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:33:48,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:48,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:33:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,923 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,923 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,923 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:48,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:33:48,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:48,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:33:48,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:48,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:48,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:33:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:48,983 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:48,984 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:48,984 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:48,984 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:48,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:33:48,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:48,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:48,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:48,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:48,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:33:48,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:48,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:49,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:49,020 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:49,020 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:49,021 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:49,021 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:49,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:49,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:49,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:49,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:49,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:49,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:49,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:49,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:33:49,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:33:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:49,080 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:49,080 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:49,081 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:49,081 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:49,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:33:49,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:49,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:33:49,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 11:33:49,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:49,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:49,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:49,118 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:49,118 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:49,118 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:49,119 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:49,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:49,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:49,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:49,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:49,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:49,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:49,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:49,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:49,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:33:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:49,173 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:49,173 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:49,173 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:49,174 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:49,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:33:49,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:49,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:49,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:49,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:49,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 11:33:49,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:49,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:49,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:49,211 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:49,212 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:49,212 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:49,212 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:49,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:49,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:49,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:49,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:49,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:49,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:49,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:49,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 11:33:49,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:49,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [128927976] [2020-09-21 11:33:49,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:49,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-21 11:33:49,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767724321] [2020-09-21 11:33:49,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-21 11:33:49,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:49,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-21 11:33:49,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:33:49,253 INFO L87 Difference]: Start difference. First operand 237 states and 342 transitions. Second operand 14 states. [2020-09-21 11:33:49,450 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-21 11:33:49,758 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-21 11:33:49,956 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-21 11:33:52,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:52,745 INFO L93 Difference]: Finished difference Result 455 states and 653 transitions. [2020-09-21 11:33:52,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 11:33:52,746 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 71 [2020-09-21 11:33:52,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:52,753 INFO L225 Difference]: With dead ends: 455 [2020-09-21 11:33:52,754 INFO L226 Difference]: Without dead ends: 237 [2020-09-21 11:33:52,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:33:52,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-09-21 11:33:52,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2020-09-21 11:33:52,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-09-21 11:33:52,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 330 transitions. [2020-09-21 11:33:52,795 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 330 transitions. Word has length 71 [2020-09-21 11:33:52,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:52,796 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 330 transitions. [2020-09-21 11:33:52,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-21 11:33:52,796 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 330 transitions. [2020-09-21 11:33:52,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-21 11:33:52,800 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:52,801 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] [2020-09-21 11:33:52,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:33:52,801 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:52,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:52,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1333871800, now seen corresponding path program 1 times [2020-09-21 11:33:52,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:52,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [295290469] [2020-09-21 11:33:52,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:52,904 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:52,904 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:52,904 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:52,905 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:52,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-21 11:33:52,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:52,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:33:52,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:52,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:33:52,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-09-21 11:33:52,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:33:52,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:53,118 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-21 11:33:53,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:53,126 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:53,126 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:53,126 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:53,127 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:53,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:53,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:53,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:53,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:53,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:53,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:53,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:53,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:53,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:53,143 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:53,143 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:53,143 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:53,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:53,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:33:53,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:53,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:53,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:53,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:53,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:53,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:53,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:33:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:53,153 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:53,154 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:53,154 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:53,154 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:53,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:53,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:53,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:53,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:53,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:53,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:33:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:53,181 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:53,181 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:53,181 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:53,181 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:53,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:33:53,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:53,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:53,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:53,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:53,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:53,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:53,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:53,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:53,206 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:53,206 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:53,207 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:53,207 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:53,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:53,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:53,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:53,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:53,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:53,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:53,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:53,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:53,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:33:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:53,243 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:53,244 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:53,244 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:53,244 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:53,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:33:53,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:53,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:53,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:53,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:53,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:53,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:53,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:53,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:53,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:53,272 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:53,272 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:53,272 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:53,272 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:53,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:53,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:53,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:53,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:53,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:53,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:53,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:53,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:53,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:33:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:53,311 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:53,311 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:53,311 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:53,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:53,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:33:53,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:53,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:53,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:53,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:53,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:53,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:53,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:53,342 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:53,342 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:53,342 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:53,343 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:53,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:53,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:53,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:53,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:53,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:53,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:53,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:53,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:53,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:53,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [295290469] [2020-09-21 11:33:53,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:53,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 11:33:53,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646520280] [2020-09-21 11:33:53,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:33:53,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:53,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:33:53,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:33:53,362 INFO L87 Difference]: Start difference. First operand 237 states and 330 transitions. Second operand 11 states. [2020-09-21 11:33:54,436 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-21 11:33:54,611 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-09-21 11:33:55,500 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-21 11:33:56,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:56,084 INFO L93 Difference]: Finished difference Result 456 states and 648 transitions. [2020-09-21 11:33:56,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:33:56,084 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 82 [2020-09-21 11:33:56,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:56,090 INFO L225 Difference]: With dead ends: 456 [2020-09-21 11:33:56,091 INFO L226 Difference]: Without dead ends: 243 [2020-09-21 11:33:56,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2020-09-21 11:33:56,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-21 11:33:56,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 241. [2020-09-21 11:33:56,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-09-21 11:33:56,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 333 transitions. [2020-09-21 11:33:56,129 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 333 transitions. Word has length 82 [2020-09-21 11:33:56,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:56,130 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 333 transitions. [2020-09-21 11:33:56,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:33:56,130 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 333 transitions. [2020-09-21 11:33:56,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-21 11:33:56,133 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:56,133 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] [2020-09-21 11:33:56,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:33:56,134 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:56,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:56,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1250466386, now seen corresponding path program 1 times [2020-09-21 11:33:56,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:56,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136187699] [2020-09-21 11:33:56,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:56,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:56,235 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:56,235 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:56,235 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:56,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-21 11:33:56,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:56,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 11:33:56,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:33:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:33:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-21 11:33:56,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:56,464 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-21 11:33:56,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:56,499 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:56,499 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:56,499 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:56,499 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:56,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:56,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:56,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:33:56,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:56,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:56,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:56,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:56,527 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:56,528 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:56,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:56,528 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:56,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:33:56,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:56,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:56,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:56,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:56,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:56,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:33:56,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:56,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:33:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:56,572 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:56,572 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:56,572 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:56,572 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:56,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:56,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:56,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:56,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:56,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:56,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:56,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:33:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:56,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:56,597 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:56,597 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:56,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:56,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:33:56,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:56,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:56,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:56,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:56,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:56,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:33:56,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:56,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:56,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:56,622 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:56,622 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:56,622 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:56,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:56,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:56,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:56,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:56,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:56,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:56,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:56,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:56,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:33:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:56,662 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:56,663 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:56,663 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:56,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:56,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:33:56,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:56,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:56,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:56,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:33:56,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:56,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:56,690 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:56,690 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:56,690 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:56,691 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:56,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:56,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:56,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:56,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:56,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:56,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:56,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:56,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:56,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:33:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:56,733 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:56,733 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:56,734 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:56,734 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:56,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:33:56,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:56,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:56,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:56,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:56,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:56,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:33:56,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:56,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:56,765 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:56,765 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:56,766 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:56,766 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:56,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:56,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:56,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:56,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:56,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:56,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:33:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:56,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:56,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:56,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:56,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:56,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 11:33:56,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:56,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:33:56,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:56,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:56,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:56,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:33:56,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:56,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:56,877 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:56,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:56,878 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:56,878 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:56,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:56,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:56,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:56,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:56,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:56,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:56,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:56,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:56,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:33:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:56,911 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:56,911 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:56,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:56,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:56,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:56,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:56,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:56,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:56,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:56,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:56,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-21 11:33:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:56,921 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:56,922 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:56,922 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:56,922 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:56,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:56,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:56,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:56,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:56,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:56,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:33:56,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:56,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:56,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:33:56,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136187699] [2020-09-21 11:33:56,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:56,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-09-21 11:33:56,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314154344] [2020-09-21 11:33:56,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-21 11:33:56,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:56,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-21 11:33:56,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-09-21 11:33:56,962 INFO L87 Difference]: Start difference. First operand 241 states and 333 transitions. Second operand 16 states. [2020-09-21 11:33:57,206 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-21 11:33:58,540 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-09-21 11:33:58,657 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-09-21 11:33:59,261 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-21 11:34:01,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:34:01,270 INFO L93 Difference]: Finished difference Result 549 states and 758 transitions. [2020-09-21 11:34:01,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 11:34:01,270 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 104 [2020-09-21 11:34:01,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:34:01,275 INFO L225 Difference]: With dead ends: 549 [2020-09-21 11:34:01,276 INFO L226 Difference]: Without dead ends: 332 [2020-09-21 11:34:01,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=298, Invalid=824, Unknown=0, NotChecked=0, Total=1122 [2020-09-21 11:34:01,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-09-21 11:34:01,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 331. [2020-09-21 11:34:01,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-09-21 11:34:01,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 448 transitions. [2020-09-21 11:34:01,318 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 448 transitions. Word has length 104 [2020-09-21 11:34:01,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:34:01,319 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 448 transitions. [2020-09-21 11:34:01,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-21 11:34:01,319 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 448 transitions. [2020-09-21 11:34:01,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-21 11:34:01,321 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:34:01,322 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] [2020-09-21 11:34:01,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:34:01,322 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:34:01,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:34:01,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1479117531, now seen corresponding path program 1 times [2020-09-21 11:34:01,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:34:01,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1696389419] [2020-09-21 11:34:01,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:34:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:01,416 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:01,416 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:01,417 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:01,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:01,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-21 11:34:01,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:01,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 11:34:01,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:01,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:34:01,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:34:01,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-21 11:34:01,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:01,625 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-21 11:34:01,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:34:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:01,642 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:01,642 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:01,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:01,642 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:01,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:01,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:01,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:34:01,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:01,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:01,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:01,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:34:01,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:01,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:34:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:01,665 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:01,665 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:01,665 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:01,666 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:01,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:34:01,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:01,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:01,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:01,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:01,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:34:01,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:01,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:34:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:01,687 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:01,687 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:01,687 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:01,688 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:01,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:01,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:01,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:01,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:01,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:01,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:01,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:34:01,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:01,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:34:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:01,715 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:01,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:01,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:01,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:01,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:34:01,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:01,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:01,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:01,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:01,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:01,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:34:01,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:01,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:01,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:01,739 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:01,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:01,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:01,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:01,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:01,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:01,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:01,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:01,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:01,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:01,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:01,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:34:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:01,781 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:01,781 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:01,781 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:01,782 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:01,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:34:01,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:01,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:01,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:01,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:01,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:01,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:34:01,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:01,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:01,806 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:01,807 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:01,807 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:01,807 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:01,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:01,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:01,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:01,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:01,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:01,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:01,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:34:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:01,862 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:01,863 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:01,863 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:01,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:01,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:34:01,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:01,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:01,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:01,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:01,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:01,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:34:01,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:01,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:01,897 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:01,898 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:01,898 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:01,898 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:01,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:01,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:01,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:01,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:01,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:01,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:01,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:01,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:01,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:34:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:01,941 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:01,942 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:01,942 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:01,942 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:01,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-21 11:34:01,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:01,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:34:01,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:01,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:34:01,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:34:01,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 11:34:01,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:02,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:02,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:02,025 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:02,025 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:02,025 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:02,026 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:02,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:02,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:02,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:02,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:02,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:02,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:02,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:34:02,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:02,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:34:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:02,057 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:02,058 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:02,058 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:02,058 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:02,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:02,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:02,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:02,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:02,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:02,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:02,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:34:02,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:02,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 11:34:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:02,066 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:02,066 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:02,067 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:02,067 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:02,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:02,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:02,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:02,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:02,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:02,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:34:02,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:02,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:02,142 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:34:02,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1696389419] [2020-09-21 11:34:02,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:34:02,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-09-21 11:34:02,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948803864] [2020-09-21 11:34:02,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-21 11:34:02,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:34:02,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-21 11:34:02,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-09-21 11:34:02,145 INFO L87 Difference]: Start difference. First operand 331 states and 448 transitions. Second operand 16 states. [2020-09-21 11:34:02,359 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-09-21 11:34:03,622 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-09-21 11:34:03,753 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-09-21 11:34:04,399 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-21 11:34:06,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:34:06,358 INFO L93 Difference]: Finished difference Result 555 states and 766 transitions. [2020-09-21 11:34:06,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 11:34:06,359 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 105 [2020-09-21 11:34:06,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:34:06,363 INFO L225 Difference]: With dead ends: 555 [2020-09-21 11:34:06,363 INFO L226 Difference]: Without dead ends: 335 [2020-09-21 11:34:06,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=298, Invalid=824, Unknown=0, NotChecked=0, Total=1122 [2020-09-21 11:34:06,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-21 11:34:06,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 331. [2020-09-21 11:34:06,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-09-21 11:34:06,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 448 transitions. [2020-09-21 11:34:06,401 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 448 transitions. Word has length 105 [2020-09-21 11:34:06,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:34:06,401 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 448 transitions. [2020-09-21 11:34:06,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-21 11:34:06,402 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 448 transitions. [2020-09-21 11:34:06,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-21 11:34:06,403 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:34:06,404 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] [2020-09-21 11:34:06,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:34:06,404 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:34:06,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:34:06,405 INFO L82 PathProgramCache]: Analyzing trace with hash -717194829, now seen corresponding path program 1 times [2020-09-21 11:34:06,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:34:06,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1916200204] [2020-09-21 11:34:06,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:34:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,464 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,464 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,464 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,465 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-21 11:34:06,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:06,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:06,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-21 11:34:06,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-21 11:34:06,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,703 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-21 11:34:06,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:34:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,711 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,711 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,712 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,712 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:06,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:06,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:06,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:06,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:34:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,725 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,725 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,725 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:34:06,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:06,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:06,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:06,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:34:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,736 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,737 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:06,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:06,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:06,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:06,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:34:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,756 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,756 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,756 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,757 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:34:06,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:06,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:06,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:06,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,777 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,777 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,777 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,778 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:06,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:06,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:06,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:34:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,831 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,831 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,831 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:34:06,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:06,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:06,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:34:06,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,864 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,864 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:06,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:06,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:06,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:06,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:34:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,907 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,908 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:34:06,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:06,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:06,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:34:06,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,939 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,939 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,940 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,940 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:06,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:06,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:06,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:06,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:34:06,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:34:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,974 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 11:34:06,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:06,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:06,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:34:06,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:06,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:06,984 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:06,984 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:06,984 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:06,984 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:06,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:06,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:06,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:34:06,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:06,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:06,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:06,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:06,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:07,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:34:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:07,009 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:07,011 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:07,011 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:07,011 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:07,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:07,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:07,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:07,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:07,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:07,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:07,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:07,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:07,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-09-21 11:34:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:07,017 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:07,017 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:07,018 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:07,018 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:07,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:07,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:07,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:34:07,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:34:07,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:07,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:07,044 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:34:07,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1916200204] [2020-09-21 11:34:07,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:34:07,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 11:34:07,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423627796] [2020-09-21 11:34:07,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:34:07,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:34:07,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:34:07,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:34:07,047 INFO L87 Difference]: Start difference. First operand 331 states and 448 transitions. Second operand 12 states. [2020-09-21 11:34:07,914 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-21 11:34:08,723 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-09-21 11:34:09,010 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-09-21 11:34:11,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:34:11,124 INFO L93 Difference]: Finished difference Result 788 states and 1093 transitions. [2020-09-21 11:34:11,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 11:34:11,124 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 107 [2020-09-21 11:34:11,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:34:11,131 INFO L225 Difference]: With dead ends: 788 [2020-09-21 11:34:11,131 INFO L226 Difference]: Without dead ends: 568 [2020-09-21 11:34:11,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-09-21 11:34:11,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2020-09-21 11:34:11,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 551. [2020-09-21 11:34:11,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2020-09-21 11:34:11,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 759 transitions. [2020-09-21 11:34:11,202 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 759 transitions. Word has length 107 [2020-09-21 11:34:11,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:34:11,203 INFO L479 AbstractCegarLoop]: Abstraction has 551 states and 759 transitions. [2020-09-21 11:34:11,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:34:11,203 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 759 transitions. [2020-09-21 11:34:11,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-21 11:34:11,205 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:34:11,205 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] [2020-09-21 11:34:11,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:34:11,206 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:34:11,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:34:11,206 INFO L82 PathProgramCache]: Analyzing trace with hash 654438841, now seen corresponding path program 1 times [2020-09-21 11:34:11,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:34:11,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696577440] [2020-09-21 11:34:11,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:34:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:11,265 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:11,265 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:11,266 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:11,266 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:11,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-21 11:34:11,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:11,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:11,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-09-21 11:34:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-21 11:34:11,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:11,475 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-21 11:34:11,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:34:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:11,481 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:11,481 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:11,481 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:11,482 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:11,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:11,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:11,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:11,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:11,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:11,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:11,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:11,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:11,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:34:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:11,496 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:11,496 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:11,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:11,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:11,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:34:11,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:11,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:34:11,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:11,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:11,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:11,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:11,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:11,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:34:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:11,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:11,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:11,505 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:11,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:11,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:11,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:11,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:11,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:11,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:11,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:11,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:11,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:11,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:34:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:11,528 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:11,529 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:11,529 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:11,529 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:11,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:34:11,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:11,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:11,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:11,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:11,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:11,551 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:11,551 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:11,551 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:11,551 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:11,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:11,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:11,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:11,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:11,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:11,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:11,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:11,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:11,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:34:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:11,584 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:11,584 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:11,585 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:11,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:11,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:34:11,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:11,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:11,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:11,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:11,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:11,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:11,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:11,607 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:11,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:11,607 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:11,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:11,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:11,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:11,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:11,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:11,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:11,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:11,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:11,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:11,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:34:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:11,648 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:11,648 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:11,648 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:11,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:11,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:34:11,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:11,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:11,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:11,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:11,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:11,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:34:11,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:11,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:11,684 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:11,684 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:11,684 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:11,684 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:11,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:11,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:11,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:11,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:11,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:11,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:11,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:11,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:11,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:34:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:11,722 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:11,722 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:11,722 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:11,722 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:11,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 11:34:11,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:11,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:34:11,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:11,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:11,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:11,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:34:11,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:11,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:11,736 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:11,736 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:11,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:11,737 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:11,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:11,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:11,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:11,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:11,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:11,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:34:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:11,768 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:11,768 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:11,768 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:11,769 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:11,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:11,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:11,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:11,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:11,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:11,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:11,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:11,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:11,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-21 11:34:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:11,779 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:11,779 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:11,779 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:11,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:11,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:11,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:11,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:34:11,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:11,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:11,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:34:11,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:11,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:11,801 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:34:11,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [696577440] [2020-09-21 11:34:11,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:34:11,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 11:34:11,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864772015] [2020-09-21 11:34:11,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:34:11,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:34:11,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:34:11,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:34:11,808 INFO L87 Difference]: Start difference. First operand 551 states and 759 transitions. Second operand 12 states. [2020-09-21 11:34:13,047 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-21 11:34:15,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:34:15,934 INFO L93 Difference]: Finished difference Result 1308 states and 1846 transitions. [2020-09-21 11:34:15,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 11:34:15,934 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 108 [2020-09-21 11:34:15,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:34:15,941 INFO L225 Difference]: With dead ends: 1308 [2020-09-21 11:34:15,941 INFO L226 Difference]: Without dead ends: 911 [2020-09-21 11:34:15,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-09-21 11:34:15,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-09-21 11:34:16,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 905. [2020-09-21 11:34:16,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-09-21 11:34:16,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1266 transitions. [2020-09-21 11:34:16,052 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1266 transitions. Word has length 108 [2020-09-21 11:34:16,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:34:16,052 INFO L479 AbstractCegarLoop]: Abstraction has 905 states and 1266 transitions. [2020-09-21 11:34:16,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:34:16,053 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1266 transitions. [2020-09-21 11:34:16,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-21 11:34:16,055 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:34:16,055 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] [2020-09-21 11:34:16,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:34:16,055 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:34:16,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:34:16,056 INFO L82 PathProgramCache]: Analyzing trace with hash 925446042, now seen corresponding path program 1 times [2020-09-21 11:34:16,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:34:16,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426159408] [2020-09-21 11:34:16,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:34:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:16,127 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:16,127 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:16,127 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:16,127 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:16,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 11:34:16,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:16,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:34:16,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:16,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-09-21 11:34:16,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-21 11:34:16,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:16,366 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-21 11:34:16,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:34:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:16,372 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:16,373 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:16,373 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:16,373 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:16,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:16,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:16,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:16,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:16,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:16,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:16,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:16,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:16,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:34:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:16,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:16,389 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:16,389 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:16,389 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:16,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:34:16,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:16,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:16,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:16,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:16,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:16,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:16,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:16,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:34:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:16,399 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:16,400 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:16,400 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:16,400 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:16,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:16,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:16,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:16,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:16,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:16,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:16,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:16,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:16,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:34:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:16,426 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:16,426 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:16,426 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:16,427 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:16,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:34:16,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:16,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:16,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:16,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:16,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:16,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:16,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:16,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:16,453 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:16,453 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:16,454 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:16,454 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:16,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:16,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:16,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:16,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:16,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:16,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:16,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:16,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:16,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:34:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:16,503 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:16,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:16,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:16,504 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:16,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:34:16,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:16,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:16,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:16,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:16,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:16,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:16,540 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:16,540 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:16,541 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:16,541 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:16,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:16,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:16,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:16,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:16,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:16,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:16,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:16,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:16,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:34:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:16,599 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:16,600 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:16,600 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:16,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:16,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 11:34:16,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:16,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:34:16,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:16,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:16,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:16,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:34:16,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:16,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:16,638 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:16,638 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:16,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:16,639 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:16,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:16,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:16,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:16,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:16,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:16,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:16,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:16,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:16,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-21 11:34:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:16,675 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:16,676 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:16,676 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:16,676 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:16,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 11:34:16,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:16,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:34:16,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:16,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:16,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:16,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:34:16,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:16,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:16,688 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:16,688 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:16,688 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:16,689 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:16,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:16,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:16,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:16,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:16,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:16,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:16,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:16,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:16,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:34:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:16,715 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:16,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:16,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:16,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:16,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:16,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:16,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:16,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:16,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:16,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:16,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:16,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:16,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-21 11:34:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:16,752 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:16,752 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:16,752 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:16,753 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:16,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:16,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:16,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:16,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:16,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:16,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:34:16,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:16,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:16,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:34:16,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426159408] [2020-09-21 11:34:16,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:34:16,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 11:34:16,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584085236] [2020-09-21 11:34:16,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:34:16,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:34:16,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:34:16,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:34:16,777 INFO L87 Difference]: Start difference. First operand 905 states and 1266 transitions. Second operand 12 states. [2020-09-21 11:34:16,950 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-21 11:34:18,374 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-09-21 11:34:20,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:34:20,987 INFO L93 Difference]: Finished difference Result 1649 states and 2335 transitions. [2020-09-21 11:34:20,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 11:34:20,988 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 109 [2020-09-21 11:34:20,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:34:20,994 INFO L225 Difference]: With dead ends: 1649 [2020-09-21 11:34:20,994 INFO L226 Difference]: Without dead ends: 916 [2020-09-21 11:34:20,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-09-21 11:34:20,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2020-09-21 11:34:21,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 910. [2020-09-21 11:34:21,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 910 states. [2020-09-21 11:34:21,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1268 transitions. [2020-09-21 11:34:21,097 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1268 transitions. Word has length 109 [2020-09-21 11:34:21,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:34:21,098 INFO L479 AbstractCegarLoop]: Abstraction has 910 states and 1268 transitions. [2020-09-21 11:34:21,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:34:21,098 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1268 transitions. [2020-09-21 11:34:21,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-21 11:34:21,100 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:34:21,101 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] [2020-09-21 11:34:21,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:34:21,101 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:34:21,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:34:21,101 INFO L82 PathProgramCache]: Analyzing trace with hash -625424837, now seen corresponding path program 1 times [2020-09-21 11:34:21,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:34:21,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1452490688] [2020-09-21 11:34:21,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:34:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:21,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:34:21,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:21,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:21,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:21,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-21 11:34:21,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:21,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:34:21,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:21,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:34:21,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-09-21 11:34:21,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:34:21,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:21,360 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-21 11:34:21,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:34:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:21,367 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:21,367 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:21,367 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:21,367 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:21,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:21,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:21,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:21,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:21,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:21,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:21,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:21,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:21,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:34:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:21,380 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:21,380 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:21,380 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:21,380 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:21,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:34:21,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:21,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:21,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:21,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:21,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:21,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:21,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:21,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:34:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:21,387 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:21,388 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:21,388 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:21,388 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:21,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:21,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:21,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:34:21,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:21,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:21,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:34:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:21,417 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:21,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:21,417 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:21,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:21,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:34:21,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:21,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:21,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:21,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:21,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:21,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:21,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:21,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:21,448 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:21,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:21,449 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:21,449 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:21,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:21,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:21,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:21,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:21,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:21,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:21,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:21,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:21,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:34:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:21,491 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:21,491 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:21,491 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:21,491 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:21,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:34:21,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:21,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:21,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:21,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:21,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:21,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:21,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:21,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:21,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:21,520 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:21,520 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:21,521 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:21,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:21,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:21,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:21,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:21,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:21,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:21,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:21,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:21,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:34:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:21,566 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:21,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:21,567 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:21,567 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:21,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:34:21,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:21,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:21,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:21,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:21,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:21,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:21,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:21,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:21,598 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:21,598 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:21,598 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:21,599 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:21,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:21,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:21,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:21,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:21,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:21,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:21,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:21,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:21,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:34:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:21,632 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:21,632 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:21,633 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:21,633 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:21,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 11:34:21,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:21,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:21,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:21,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:21,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:21,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:21,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:21,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:21,641 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:21,641 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:21,641 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:21,641 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:21,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:21,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:21,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:21,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:21,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:21,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:21,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:21,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:21,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:34:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:21,668 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:21,669 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:21,669 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:21,669 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:21,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:21,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:21,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:21,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:21,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:21,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:21,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:21,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:21,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-21 11:34:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:21,675 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:21,675 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:21,675 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:21,676 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:21,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:21,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:21,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:21,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:21,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:21,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:21,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:21,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:21,698 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:34:21,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1452490688] [2020-09-21 11:34:21,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:34:21,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-21 11:34:21,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152636990] [2020-09-21 11:34:21,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 11:34:21,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:34:21,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 11:34:21,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:34:21,701 INFO L87 Difference]: Start difference. First operand 910 states and 1268 transitions. Second operand 13 states. [2020-09-21 11:34:23,515 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-21 11:34:23,674 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-21 11:34:24,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:34:24,764 INFO L93 Difference]: Finished difference Result 1663 states and 2354 transitions. [2020-09-21 11:34:24,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:34:24,765 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 108 [2020-09-21 11:34:24,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:34:24,772 INFO L225 Difference]: With dead ends: 1663 [2020-09-21 11:34:24,772 INFO L226 Difference]: Without dead ends: 930 [2020-09-21 11:34:24,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-09-21 11:34:24,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2020-09-21 11:34:24,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 930. [2020-09-21 11:34:24,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2020-09-21 11:34:24,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1284 transitions. [2020-09-21 11:34:24,888 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1284 transitions. Word has length 108 [2020-09-21 11:34:24,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:34:24,888 INFO L479 AbstractCegarLoop]: Abstraction has 930 states and 1284 transitions. [2020-09-21 11:34:24,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 11:34:24,888 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1284 transitions. [2020-09-21 11:34:24,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-09-21 11:34:24,894 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:34:24,894 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] [2020-09-21 11:34:24,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:34:24,895 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:34:24,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:34:24,895 INFO L82 PathProgramCache]: Analyzing trace with hash 442586826, now seen corresponding path program 1 times [2020-09-21 11:34:24,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:34:24,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797268598] [2020-09-21 11:34:24,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:34:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:24,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:24,964 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:24,964 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:24,964 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:24,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-21 11:34:24,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:24,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:24,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:24,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:24,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-21 11:34:24,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-21 11:34:24,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:25,177 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-21 11:34:25,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:34:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:25,184 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:25,184 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:25,185 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:25,185 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:25,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:25,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:25,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:25,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:25,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:25,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:25,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:25,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:25,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:34:25,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:25,202 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:25,202 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:25,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:25,203 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:25,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:34:25,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:25,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:25,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:25,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:25,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:25,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:25,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:25,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:34:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:25,214 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:25,215 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:25,215 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:25,215 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:25,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:25,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:25,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:25,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:25,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:25,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:25,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:25,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:25,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:34:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:25,245 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:25,245 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:25,246 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:25,246 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:25,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:34:25,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:25,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:25,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:25,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:25,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:25,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:25,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:25,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:25,276 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:25,276 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:25,276 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:25,277 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:25,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:25,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:25,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:25,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:25,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:25,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:25,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:25,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:25,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:34:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:25,332 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:25,333 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:25,333 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:25,333 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:25,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 11:34:25,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:25,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:34:25,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:25,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:25,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:34:25,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:25,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:25,376 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:25,376 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:25,377 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:25,377 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:25,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:25,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:25,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:25,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:25,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:25,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:25,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:25,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:34:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:25,443 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:25,444 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:25,444 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:25,445 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:25,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:34:25,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:25,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:34:25,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:25,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:25,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:25,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:34:25,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:25,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:25,493 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:25,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:25,495 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:25,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:25,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:25,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:25,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:34:25,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:25,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:25,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:25,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-21 11:34:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:25,537 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:25,538 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:25,538 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:25,539 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:25,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 11:34:25,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:25,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:34:25,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:25,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:34:25,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:25,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:34:25,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:25,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:25,562 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:25,562 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:25,562 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:25,563 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:25,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:25,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:25,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:25,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:25,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:25,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:25,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:34:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:25,598 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:25,598 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:25,599 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:25,599 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:25,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:25,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:25,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:25,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:25,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:25,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:25,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:25,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:25,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-21 11:34:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:25,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:25,623 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:25,623 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:25,624 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:25,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:25,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:25,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:25,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:25,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:25,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:34:25,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:25,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:25,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 11:34:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:25,638 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:25,638 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:25,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:25,639 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:25,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:34:25,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:25,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:25,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:25,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:25,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:34:25,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:25,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:25,703 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:34:25,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797268598] [2020-09-21 11:34:25,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:34:25,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 11:34:25,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731183211] [2020-09-21 11:34:25,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:34:25,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:34:25,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:34:25,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:34:25,706 INFO L87 Difference]: Start difference. First operand 930 states and 1284 transitions. Second operand 12 states. [2020-09-21 11:34:25,942 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-09-21 11:34:27,705 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-09-21 11:34:29,307 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-09-21 11:34:30,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:34:30,203 INFO L93 Difference]: Finished difference Result 1715 states and 2391 transitions. [2020-09-21 11:34:30,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 11:34:30,204 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2020-09-21 11:34:30,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:34:30,210 INFO L225 Difference]: With dead ends: 1715 [2020-09-21 11:34:30,210 INFO L226 Difference]: Without dead ends: 962 [2020-09-21 11:34:30,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-09-21 11:34:30,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2020-09-21 11:34:30,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 930. [2020-09-21 11:34:30,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2020-09-21 11:34:30,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1280 transitions. [2020-09-21 11:34:30,334 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1280 transitions. Word has length 117 [2020-09-21 11:34:30,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:34:30,335 INFO L479 AbstractCegarLoop]: Abstraction has 930 states and 1280 transitions. [2020-09-21 11:34:30,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:34:30,335 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1280 transitions. [2020-09-21 11:34:30,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-09-21 11:34:30,337 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:34:30,338 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] [2020-09-21 11:34:30,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:34:30,338 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:34:30,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:34:30,338 INFO L82 PathProgramCache]: Analyzing trace with hash -208311273, now seen corresponding path program 1 times [2020-09-21 11:34:30,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:34:30,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545154896] [2020-09-21 11:34:30,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:34:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:30,403 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:34:30,403 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:30,403 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:30,403 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:30,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-21 11:34:30,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:30,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:34:30,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:30,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:34:30,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-21 11:34:30,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:34:30,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:30,619 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-21 11:34:30,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:34:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:30,625 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:30,626 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:30,626 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:30,626 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:30,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:30,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:30,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:30,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:30,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:30,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:30,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:30,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:30,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:34:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:30,640 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:30,640 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:30,641 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:30,641 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:30,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:34:30,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:30,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:30,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:30,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:30,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:30,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:30,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:30,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:34:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:30,653 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:30,653 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:30,653 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:30,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:30,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:30,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:30,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:30,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:30,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:30,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:30,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:30,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:30,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:34:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:30,685 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:30,685 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:30,686 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:30,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:30,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:34:30,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:30,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:30,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:30,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:30,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:30,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:30,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:34:30,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:30,715 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:30,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:30,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:30,717 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:30,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:30,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:30,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:30,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:30,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:30,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:30,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:30,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:34:30,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:34:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:30,755 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:30,756 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:30,756 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:30,756 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:30,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:34:30,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:30,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:30,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:30,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:30,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:30,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:30,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:30,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:30,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:30,784 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:30,784 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:30,784 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:30,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:30,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:30,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:30,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:30,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:30,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:30,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:30,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:30,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:34:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:30,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:30,826 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:30,826 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:30,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:30,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:34:30,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:30,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:30,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:30,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:30,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:30,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:30,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:30,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:30,854 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:30,854 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:30,854 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:30,855 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:30,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:30,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:30,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:30,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:30,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:30,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:34:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:30,883 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:30,883 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:30,884 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:30,884 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:30,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 11:34:30,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:30,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:30,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:30,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:30,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:30,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:30,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:30,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:30,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:30,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:30,893 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:30,893 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:30,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:30,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:30,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:30,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:30,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:30,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:30,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:30,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:30,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:34:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:30,921 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:30,921 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:30,921 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:30,921 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:30,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:30,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:30,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:30,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:30,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:30,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:30,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:30,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:30,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-21 11:34:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:30,927 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:30,927 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:30,928 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:30,928 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:30,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:30,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:30,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:30,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:30,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:30,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-21 11:34:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:30,933 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:30,933 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:30,934 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:30,934 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:30,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:34:30,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:30,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:30,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:30,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:30,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:30,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:30,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:30,958 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:34:30,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545154896] [2020-09-21 11:34:30,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:34:30,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-21 11:34:30,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27798884] [2020-09-21 11:34:30,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 11:34:30,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:34:30,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 11:34:30,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:34:30,964 INFO L87 Difference]: Start difference. First operand 930 states and 1280 transitions. Second operand 13 states. [2020-09-21 11:34:32,389 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-09-21 11:34:32,883 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-09-21 11:34:33,035 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-09-21 11:34:34,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:34:34,073 INFO L93 Difference]: Finished difference Result 1703 states and 2388 transitions. [2020-09-21 11:34:34,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:34:34,074 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 116 [2020-09-21 11:34:34,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:34:34,080 INFO L225 Difference]: With dead ends: 1703 [2020-09-21 11:34:34,080 INFO L226 Difference]: Without dead ends: 950 [2020-09-21 11:34:34,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-09-21 11:34:34,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2020-09-21 11:34:34,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 950. [2020-09-21 11:34:34,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 950 states. [2020-09-21 11:34:34,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1296 transitions. [2020-09-21 11:34:34,184 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1296 transitions. Word has length 116 [2020-09-21 11:34:34,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:34:34,185 INFO L479 AbstractCegarLoop]: Abstraction has 950 states and 1296 transitions. [2020-09-21 11:34:34,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 11:34:34,185 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1296 transitions. [2020-09-21 11:34:34,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-09-21 11:34:34,188 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:34:34,188 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:34:34,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:34:34,188 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:34:34,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:34:34,189 INFO L82 PathProgramCache]: Analyzing trace with hash -2072056031, now seen corresponding path program 1 times [2020-09-21 11:34:34,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:34:34,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1671748563] [2020-09-21 11:34:34,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:34:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:34,258 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:34,258 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:34,258 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:34,259 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:34,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-21 11:34:34,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:34,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:34:34,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:34,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:34:34,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-21 11:34:34,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:34:34,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:34,503 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-09-21 11:34:34,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:34:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:34,509 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:34,510 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:34,510 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:34,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:34,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:34,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:34,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:34,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:34,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:34,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:34,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:34,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:34,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:34:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:34,526 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:34,526 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:34,526 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:34,526 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:34,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:34:34,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:34,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:34,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:34,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:34,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:34,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:34,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:34,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 11:34:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:34,534 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:34,535 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:34,535 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:34,535 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:34,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:34,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:34,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:34,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:34,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:34,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:34,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:34,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:34,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:34:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:34,567 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:34,567 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:34,567 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:34,567 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:34,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:34:34,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:34,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:34,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:34,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:34,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:34,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:34,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:34,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:34,589 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:34,590 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:34,590 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:34,590 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:34,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:34,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:34,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:34,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:34,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:34,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:34,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:34,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:34,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 11:34:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:34,628 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:34,628 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:34,628 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:34,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:34,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:34:34,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:34,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:34,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:34,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:34,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:34,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:34,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:34,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:34,651 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:34,652 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:34,652 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:34,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:34,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:34,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:34,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:34,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:34,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:34,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:34,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:34,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:34,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:34:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:34,691 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:34,691 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:34,691 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:34,692 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:34,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:34:34,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:34,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:34,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:34,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:34,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:34,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:34,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:34,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:34,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:34,719 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:34,719 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:34,719 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:34,719 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:34,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:34,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:34,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:34,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:34,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:34,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:34,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:34,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:34,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:34:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:34,748 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:34,748 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:34,748 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:34,749 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:34,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 11:34:34,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:34,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:34,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:34,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:34,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:34,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:34,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:34,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:34:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:34,757 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:34,757 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:34,758 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:34,758 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:34,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:34,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:34,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:34:34,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:34,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:34,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:34,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:34,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:34,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 11:34:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:34,784 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:34,785 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:34,785 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:34,785 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:34,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:34:34,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:34,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:34,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:34,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:34,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:34,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:34,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:34,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-21 11:34:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:34,791 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:34,791 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:34,792 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:34,792 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:34,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:34:34,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:34,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:34,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:34,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:34,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:34,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:34,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:34,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-21 11:34:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:34,797 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:34,797 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:34,797 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:34,798 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:34,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:34:34,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:34,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:34:34,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:34,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:34,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:34,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:34,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:34,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-21 11:34:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:34:34,807 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:34:34,807 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:34:34,807 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:34:34,808 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:34:34,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:34:34,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:34:34,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:34:34,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:34:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:34:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:34:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:34:34,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:34:34,832 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 11:34:34,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1671748563] [2020-09-21 11:34:34,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:34:34,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-21 11:34:34,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767225929] [2020-09-21 11:34:34,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 11:34:34,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:34:34,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 11:34:34,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:34:34,835 INFO L87 Difference]: Start difference. First operand 950 states and 1296 transitions. Second operand 13 states.