/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:14:15,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:14:15,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:14:15,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:14:15,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:14:15,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:14:15,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:14:15,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:14:15,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:14:15,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:14:15,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:14:15,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:14:15,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:14:15,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:14:15,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:14:15,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:14:15,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:14:15,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:14:15,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:14:15,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:14:15,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:14:15,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:14:15,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:14:15,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:14:15,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:14:15,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:14:15,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:14:15,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:14:15,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:14:15,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:14:15,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:14:15,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:14:15,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:14:15,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:14:15,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:14:15,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:14:15,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:14:15,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:14:15,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:14:15,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:14:15,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:14:15,252 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 08:14:15,293 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:14:15,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:14:15,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:14:15,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:14:15,296 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:14:15,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:14:15,296 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:14:15,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:14:15,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:14:15,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:14:15,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:14:15,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:14:15,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:14:15,299 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:14:15,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:14:15,299 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:14:15,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:14:15,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:14:15,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:14:15,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:14:15,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:14:15,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:14:15,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:14:15,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:14:15,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:14:15,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:14:15,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:14:15,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:14:15,302 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:14:15,302 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:14:15,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:14:15,617 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:14:15,621 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:14:15,623 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:14:15,623 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:14:15,624 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-10-14 08:14:15,684 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0c92bc78/630357c4db2f4d71b3cf69958c69e83f/FLAG34ba11cc7 [2020-10-14 08:14:16,209 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:14:16,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-10-14 08:14:16,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0c92bc78/630357c4db2f4d71b3cf69958c69e83f/FLAG34ba11cc7 [2020-10-14 08:14:16,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0c92bc78/630357c4db2f4d71b3cf69958c69e83f [2020-10-14 08:14:16,540 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:14:16,542 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:14:16,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:14:16,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:14:16,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:14:16,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:14:16" (1/1) ... [2020-10-14 08:14:16,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cfafcce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:16, skipping insertion in model container [2020-10-14 08:14:16,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:14:16" (1/1) ... [2020-10-14 08:14:16,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:14:16,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:14:16,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:14:17,017 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:14:17,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:14:17,154 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:14:17,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:17 WrapperNode [2020-10-14 08:14:17,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:14:17,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:14:17,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:14:17,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:14:17,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:17" (1/1) ... [2020-10-14 08:14:17,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:17" (1/1) ... [2020-10-14 08:14:17,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:17" (1/1) ... [2020-10-14 08:14:17,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:17" (1/1) ... [2020-10-14 08:14:17,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:17" (1/1) ... [2020-10-14 08:14:17,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:17" (1/1) ... [2020-10-14 08:14:17,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:17" (1/1) ... [2020-10-14 08:14:17,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:14:17,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:14:17,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:14:17,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:14:17,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:14:17,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:14:17,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:14:17,293 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:14:17,293 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side1_failed_history [2020-10-14 08:14:17,293 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2020-10-14 08:14:17,293 INFO L138 BoogieDeclarations]: Found implementation of procedure write_side2_failed_history [2020-10-14 08:14:17,294 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2020-10-14 08:14:17,295 INFO L138 BoogieDeclarations]: Found implementation of procedure write_active_side_history [2020-10-14 08:14:17,295 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2020-10-14 08:14:17,295 INFO L138 BoogieDeclarations]: Found implementation of procedure write_manual_selection_history [2020-10-14 08:14:17,295 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2020-10-14 08:14:17,295 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 08:14:17,296 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2020-10-14 08:14:17,296 INFO L138 BoogieDeclarations]: Found implementation of procedure Console_task_each_pals_period [2020-10-14 08:14:17,296 INFO L138 BoogieDeclarations]: Found implementation of procedure Side1_activestandby_task_each_pals_period [2020-10-14 08:14:17,297 INFO L138 BoogieDeclarations]: Found implementation of procedure Side2_activestandby_task_each_pals_period [2020-10-14 08:14:17,297 INFO L138 BoogieDeclarations]: Found implementation of procedure Pendulum_prism_task_each_pals_period [2020-10-14 08:14:17,297 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 08:14:17,297 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:14:17,297 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 08:14:17,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:14:17,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:14:17,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:14:17,298 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:14:17,299 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:14:17,299 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:14:17,299 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:14:17,300 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:14:17,300 INFO L130 BoogieDeclarations]: Found specification of procedure write_side1_failed_history [2020-10-14 08:14:17,300 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2020-10-14 08:14:17,300 INFO L130 BoogieDeclarations]: Found specification of procedure write_side2_failed_history [2020-10-14 08:14:17,300 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2020-10-14 08:14:17,300 INFO L130 BoogieDeclarations]: Found specification of procedure write_active_side_history [2020-10-14 08:14:17,301 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2020-10-14 08:14:17,301 INFO L130 BoogieDeclarations]: Found specification of procedure write_manual_selection_history [2020-10-14 08:14:17,301 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2020-10-14 08:14:17,301 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:14:17,301 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2020-10-14 08:14:17,301 INFO L130 BoogieDeclarations]: Found specification of procedure Console_task_each_pals_period [2020-10-14 08:14:17,303 INFO L130 BoogieDeclarations]: Found specification of procedure Side1_activestandby_task_each_pals_period [2020-10-14 08:14:17,303 INFO L130 BoogieDeclarations]: Found specification of procedure Side2_activestandby_task_each_pals_period [2020-10-14 08:14:17,303 INFO L130 BoogieDeclarations]: Found specification of procedure Pendulum_prism_task_each_pals_period [2020-10-14 08:14:17,303 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:14:17,303 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:14:17,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:14:17,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:14:18,045 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:14:18,045 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 08:14:18,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:14:18 BoogieIcfgContainer [2020-10-14 08:14:18,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:14:18,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:14:18,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:14:18,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:14:18,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:14:16" (1/3) ... [2020-10-14 08:14:18,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c06a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:14:18, skipping insertion in model container [2020-10-14 08:14:18,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:17" (2/3) ... [2020-10-14 08:14:18,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c06a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:14:18, skipping insertion in model container [2020-10-14 08:14:18,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:14:18" (3/3) ... [2020-10-14 08:14:18,061 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2020-10-14 08:14:18,073 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:14:18,082 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 08:14:18,096 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 08:14:18,124 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:14:18,124 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:14:18,125 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:14:18,125 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:14:18,125 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:14:18,125 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:14:18,126 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:14:18,126 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:14:18,152 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states. [2020-10-14 08:14:18,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 08:14:18,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:14:18,165 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] [2020-10-14 08:14:18,165 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:14:18,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:14:18,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1549655252, now seen corresponding path program 1 times [2020-10-14 08:14:18,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:14:18,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1252737302] [2020-10-14 08:14:18,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:14:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:18,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:18,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:18,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:18,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:19,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:19,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:19,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:20,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:20,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:20,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 08:14:20,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:14:20,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2069 [2020-10-14 08:14:20,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:20,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:20,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:20,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-14 08:14:20,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:20,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 08:14:20,761 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:14:20,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:14:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:20,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:20,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:20,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:20,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:20,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:14:20,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:20,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:20,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:20,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:20,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:20,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:20,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:14:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:20,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:20,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:20,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:20,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:20,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:14:20,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:20,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:20,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:20,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:20,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:20,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:20,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:14:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:20,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:20,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:20,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:20,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:14:20,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:14:20,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:14:20,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:20,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:20,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:20,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:20,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:20,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:20,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:14:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:20,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:20,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:20,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:14:20,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:20,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:14:20,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:20,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:20,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:20,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:20,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:20,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:20,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:20,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:20,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:20,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:20,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:20,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:14:20,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:20,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:20,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:20,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:20,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:20,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:20,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:14:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:20,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:20,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:20,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:20,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:14:20,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:14:20,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 08:14:20,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:20,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:20,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:20,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:14:20,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:20,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:20,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:20,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:20,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:20,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:20,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:20,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:14:20,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:20,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:20,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:20,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:20,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:20,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:21,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:14:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:21,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:21,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:21,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:21,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:21,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:21,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:14:21,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:14:21,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 08:14:21,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:21,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:21,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:21,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:14:21,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:21,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:21,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:21,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:21,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:21,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:21,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:21,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:14:21,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:21,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:21,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:21,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:21,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:21,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:21,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:14:21,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1252737302] [2020-10-14 08:14:21,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:14:21,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:14:21,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276092090] [2020-10-14 08:14:21,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:14:21,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:14:21,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:14:21,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:14:21,115 INFO L87 Difference]: Start difference. First operand 242 states. Second operand 9 states. [2020-10-14 08:14:22,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:14:22,618 INFO L93 Difference]: Finished difference Result 456 states and 705 transitions. [2020-10-14 08:14:22,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 08:14:22,620 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-14 08:14:22,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:14:22,635 INFO L225 Difference]: With dead ends: 456 [2020-10-14 08:14:22,635 INFO L226 Difference]: Without dead ends: 237 [2020-10-14 08:14:22,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:14:22,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-14 08:14:22,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2020-10-14 08:14:22,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-10-14 08:14:22,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 342 transitions. [2020-10-14 08:14:22,753 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 342 transitions. Word has length 71 [2020-10-14 08:14:22,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:14:22,759 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 342 transitions. [2020-10-14 08:14:22,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:14:22,760 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 342 transitions. [2020-10-14 08:14:22,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 08:14:22,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:14:22,764 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] [2020-10-14 08:14:22,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:14:22,765 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:14:22,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:14:22,765 INFO L82 PathProgramCache]: Analyzing trace with hash 695502060, now seen corresponding path program 1 times [2020-10-14 08:14:22,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:14:22,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853539455] [2020-10-14 08:14:22,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:14:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:22,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:22,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:23,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:26,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:26,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 08:14:26,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:14:26,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3849 [2020-10-14 08:14:26,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:26,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:26,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:14:26,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-14 08:14:26,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:14:26,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 08:14:26,877 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:14:26,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:14:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:26,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:26,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:26,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:26,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:26,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 08:14:26,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:26,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:26,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:26,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:26,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:26,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:26,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:14:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:26,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:26,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:26,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:26,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:26,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:14:26,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:26,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:26,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:26,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:26,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:26,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:26,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:14:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:26,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:26,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:26,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:14:26,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:26,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:14:26,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:26,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:26,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:26,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:26,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:14:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:26,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:26,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:26,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:14:26,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:26,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:14:26,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:26,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:26,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:26,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:26,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:26,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:26,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:26,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:26,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:26,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:26,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:26,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:14:26,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:26,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:26,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:26,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:26,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:26,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:27,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:14:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:27,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:27,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:27,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:14:27,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:27,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:14:27,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:27,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:27,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:27,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:27,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:27,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:27,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:27,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:27,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:27,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:27,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:27,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:14:27,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:27,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:27,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:27,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:14:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:27,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:27,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:27,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:14:27,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:27,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:14:27,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:27,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:27,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:27,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:27,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:27,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:27,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:27,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:27,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:27,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:27,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:27,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:14:27,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:27,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:27,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:27,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:27,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:27,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:27,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:14:27,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1853539455] [2020-10-14 08:14:27,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:14:27,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 08:14:27,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797522310] [2020-10-14 08:14:27,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 08:14:27,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:14:27,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 08:14:27,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:14:27,169 INFO L87 Difference]: Start difference. First operand 237 states and 342 transitions. Second operand 11 states. [2020-10-14 08:14:28,298 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:14:28,475 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-14 08:14:29,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:14:29,620 INFO L93 Difference]: Finished difference Result 454 states and 657 transitions. [2020-10-14 08:14:29,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 08:14:29,620 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 71 [2020-10-14 08:14:29,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:14:29,626 INFO L225 Difference]: With dead ends: 454 [2020-10-14 08:14:29,626 INFO L226 Difference]: Without dead ends: 241 [2020-10-14 08:14:29,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:14:29,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-10-14 08:14:29,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2020-10-14 08:14:29,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-10-14 08:14:29,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 345 transitions. [2020-10-14 08:14:29,741 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 345 transitions. Word has length 71 [2020-10-14 08:14:29,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:14:29,742 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 345 transitions. [2020-10-14 08:14:29,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 08:14:29,742 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 345 transitions. [2020-10-14 08:14:29,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-14 08:14:29,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:14:29,750 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] [2020-10-14 08:14:29,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:14:29,750 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:14:29,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:14:29,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1081227550, now seen corresponding path program 1 times [2020-10-14 08:14:29,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:14:29,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425381989] [2020-10-14 08:14:29,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:14:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:29,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:29,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:29,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:30,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:34,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:34,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 08:14:34,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:14:34,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 08:14:34,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:34,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:34,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:34,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-14 08:14:34,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 08:14:34,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:34,959 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:14:34,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:14:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:34,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:34,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:34,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:34,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:34,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:14:34,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:34,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:34,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:34,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:34,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:34,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:14:34,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:14:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:34,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:34,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:34,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:34,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:34,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:34,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:34,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:34,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:34,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:34,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:34,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:34,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:14:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:34,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:34,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:34,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:14:34,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:34,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:14:34,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:34,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:34,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:34,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:34,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:34,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:35,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:14:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:35,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:35,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:35,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:14:35,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:35,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:14:35,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:35,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:35,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:35,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:35,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:35,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:35,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:35,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:35,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:35,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:35,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:35,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:14:35,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:35,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:35,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:35,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:35,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:35,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:35,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:14:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:35,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:35,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:35,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:14:35,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:35,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:14:35,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:35,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:35,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:35,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:35,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:14:35,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:35,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:35,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:35,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:35,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:35,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:35,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:14:35,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:35,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:35,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:35,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:35,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:35,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:35,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:14:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:35,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:35,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:35,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:14:35,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:35,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:14:35,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:35,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:35,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:35,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:35,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 08:14:35,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:35,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:35,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:35,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:35,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:35,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:35,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:14:35,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:35,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:35,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:35,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:35,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 08:14:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:35,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:35,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:35,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 08:14:35,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:35,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:14:35,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:35,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:35,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:35,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:35,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 08:14:35,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:35,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:35,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:35,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:35,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:14:35,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:35,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:35,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:35,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:35,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:35,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 08:14:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:35,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:35,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:35,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:35,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:35,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:14:35,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:35,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:35,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:35,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:35,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:14:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:35,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:35,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:35,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:14:35,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:35,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:14:35,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:35,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:35,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:35,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:14:35,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:35,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:35,348 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 08:14:35,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [425381989] [2020-10-14 08:14:35,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:14:35,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:14:35,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142676876] [2020-10-14 08:14:35,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:14:35,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:14:35,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:14:35,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:14:35,352 INFO L87 Difference]: Start difference. First operand 241 states and 345 transitions. Second operand 12 states. [2020-10-14 08:14:36,146 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-14 08:14:39,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:14:39,149 INFO L93 Difference]: Finished difference Result 649 states and 927 transitions. [2020-10-14 08:14:39,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 08:14:39,149 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 93 [2020-10-14 08:14:39,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:14:39,157 INFO L225 Difference]: With dead ends: 649 [2020-10-14 08:14:39,157 INFO L226 Difference]: Without dead ends: 432 [2020-10-14 08:14:39,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:14:39,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-10-14 08:14:39,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 415. [2020-10-14 08:14:39,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-14 08:14:39,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 597 transitions. [2020-10-14 08:14:39,224 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 597 transitions. Word has length 93 [2020-10-14 08:14:39,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:14:39,224 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 597 transitions. [2020-10-14 08:14:39,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:14:39,225 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 597 transitions. [2020-10-14 08:14:39,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-14 08:14:39,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:14:39,227 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] [2020-10-14 08:14:39,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:14:39,227 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:14:39,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:14:39,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1741107327, now seen corresponding path program 1 times [2020-10-14 08:14:39,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:14:39,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721188473] [2020-10-14 08:14:39,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:14:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:39,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:39,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:39,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:40,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:40,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:40,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:40,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:41,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:44,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:44,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 08:14:44,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:14:44,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 08:14:44,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:44,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-14 08:14:44,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 08:14:44,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:44,441 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:14:44,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:14:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:44,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:44,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:44,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:44,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:44,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:14:44,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:44,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:44,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:44,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:44,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:44,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:44,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:14:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:44,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:44,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:44,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:44,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:44,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:44,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:44,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:44,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:44,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:44,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:44,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:44,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:14:44,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:44,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:44,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:44,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:14:44,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:44,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:44,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:44,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:44,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:44,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:44,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:44,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:44,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:14:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:44,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:44,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:44,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:14:44,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:44,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:14:44,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:44,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:44,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:44,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:44,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:44,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:44,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:44,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:44,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:44,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:44,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:44,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:44,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:44,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:44,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:44,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:44,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:44,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:44,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:14:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:44,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:44,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:44,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:14:44,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:44,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:14:44,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:44,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:44,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:14:44,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:44,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:44,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:44,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:44,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:44,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:44,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:44,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:44,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:44,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:44,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:44,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:44,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:44,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:14:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:44,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:44,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:44,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:14:44,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:44,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:14:44,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:44,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:44,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:44,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:44,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 08:14:44,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:44,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:44,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:44,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:44,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:44,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:44,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:44,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:44,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:44,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:44,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:44,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:44,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:44,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:14:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:44,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:44,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:44,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 08:14:44,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:44,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:14:44,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:44,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:44,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:44,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:44,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 08:14:44,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:44,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:44,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:44,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:44,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:14:44,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:44,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:44,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:44,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:44,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:44,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:44,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:44,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:44,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 08:14:44,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:44,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:44,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:44,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:44,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:44,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:44,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:44,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:44,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:44,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:44,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:44,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:44,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 08:14:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:44,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:44,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:44,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:14:44,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:44,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:44,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:44,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:44,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:44,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:14:44,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:44,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:44,767 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 08:14:44,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721188473] [2020-10-14 08:14:44,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:14:44,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:14:44,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879916672] [2020-10-14 08:14:44,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:14:44,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:14:44,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:14:44,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:14:44,769 INFO L87 Difference]: Start difference. First operand 415 states and 597 transitions. Second operand 12 states. [2020-10-14 08:14:44,923 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:14:48,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:14:48,329 INFO L93 Difference]: Finished difference Result 827 states and 1180 transitions. [2020-10-14 08:14:48,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 08:14:48,330 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 95 [2020-10-14 08:14:48,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:14:48,334 INFO L225 Difference]: With dead ends: 827 [2020-10-14 08:14:48,334 INFO L226 Difference]: Without dead ends: 436 [2020-10-14 08:14:48,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:14:48,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2020-10-14 08:14:48,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 419. [2020-10-14 08:14:48,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-10-14 08:14:48,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 598 transitions. [2020-10-14 08:14:48,384 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 598 transitions. Word has length 95 [2020-10-14 08:14:48,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:14:48,385 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 598 transitions. [2020-10-14 08:14:48,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:14:48,385 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 598 transitions. [2020-10-14 08:14:48,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 08:14:48,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:14:48,387 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] [2020-10-14 08:14:48,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:14:48,387 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:14:48,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:14:48,388 INFO L82 PathProgramCache]: Analyzing trace with hash -2040640918, now seen corresponding path program 1 times [2020-10-14 08:14:48,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:14:48,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1323538437] [2020-10-14 08:14:48,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:14:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:48,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:48,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:48,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:49,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:53,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:53,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:14:53,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:14:53,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 08:14:53,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:53,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:53,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:53,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 08:14:53,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 08:14:53,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:53,564 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:14:53,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:14:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:53,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:53,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:53,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:53,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:53,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:14:53,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:53,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:53,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:53,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:14:53,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:53,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:53,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:53,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:53,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:53,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:53,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:53,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:53,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:53,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:53,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:53,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:53,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:14:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:53,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:53,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:53,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:14:53,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:53,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:53,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:53,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:53,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:53,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:14:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:53,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:53,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:53,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:14:53,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:53,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:14:53,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:53,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:53,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:53,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:53,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:53,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:53,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:53,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:53,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:53,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:53,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:53,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:53,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:53,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:53,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:53,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:53,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:53,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:53,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:14:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:53,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:53,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:53,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:14:53,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:53,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:14:53,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:53,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:53,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:53,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:53,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:53,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:53,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:53,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:53,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:53,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:53,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:53,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:53,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:53,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:53,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:53,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:53,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:53,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:53,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:14:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:53,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:53,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:53,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:14:53,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:53,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:14:53,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:53,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:53,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:53,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:53,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:14:53,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:53,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:53,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:53,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:53,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:53,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:53,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:53,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:53,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:53,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:53,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:53,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:53,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:53,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 08:14:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:53,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:53,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:53,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 08:14:53,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:53,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:14:53,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:53,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:14:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:53,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 08:14:53,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:53,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:14:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:53,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:53,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:53,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:14:53,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:53,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:14:53,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:53,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:53,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:53,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:53,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:53,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:53,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 08:14:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:53,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:53,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:53,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:14:53,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:53,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:53,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:53,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:53,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:53,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:14:53,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:53,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:14:53,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:14:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:53,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:53,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:14:53,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:14:53,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:14:53,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:14:53,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:14:53,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:14:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:14:53,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:14:53,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:14:53,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:14:53,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 08:14:53,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1323538437] [2020-10-14 08:14:53,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:14:53,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:14:53,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506628194] [2020-10-14 08:14:53,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:14:53,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:14:53,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:14:53,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:14:53,870 INFO L87 Difference]: Start difference. First operand 419 states and 598 transitions. Second operand 12 states. [2020-10-14 08:14:54,920 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-14 08:14:57,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:14:57,267 INFO L93 Difference]: Finished difference Result 1146 states and 1643 transitions. [2020-10-14 08:14:57,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 08:14:57,267 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2020-10-14 08:14:57,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:14:57,274 INFO L225 Difference]: With dead ends: 1146 [2020-10-14 08:14:57,275 INFO L226 Difference]: Without dead ends: 755 [2020-10-14 08:14:57,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:14:57,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2020-10-14 08:14:57,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 749. [2020-10-14 08:14:57,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2020-10-14 08:14:57,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1074 transitions. [2020-10-14 08:14:57,363 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1074 transitions. Word has length 94 [2020-10-14 08:14:57,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:14:57,364 INFO L479 AbstractCegarLoop]: Abstraction has 749 states and 1074 transitions. [2020-10-14 08:14:57,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:14:57,364 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1074 transitions. [2020-10-14 08:14:57,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-14 08:14:57,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:14:57,366 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] [2020-10-14 08:14:57,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:14:57,366 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:14:57,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:14:57,367 INFO L82 PathProgramCache]: Analyzing trace with hash -520197931, now seen corresponding path program 1 times [2020-10-14 08:14:57,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:14:57,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1142634138] [2020-10-14 08:14:57,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:14:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:14:57,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:57,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:57,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:58,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:58,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:58,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:58,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:14:59,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:02,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:02,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 08:15:02,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:15:02,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 08:15:02,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:02,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:02,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:15:02,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 08:15:02,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 08:15:02,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:02,586 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:15:02,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:15:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:02,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:02,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:02,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:02,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:02,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:15:02,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:02,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:02,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:02,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:02,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:02,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:02,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:15:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:02,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:02,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:02,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:02,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:02,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:02,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:02,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:02,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:02,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:02,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:02,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:02,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:15:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:02,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:02,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:02,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:02,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:02,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:15:02,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:02,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:02,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:02,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:02,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:02,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:15:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:02,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:02,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:02,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:15:02,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:02,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:15:02,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:02,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:02,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:02,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:02,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:02,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:02,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:02,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:02,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:02,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:02,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:02,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:15:02,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:02,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:02,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:02,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:02,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:02,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:02,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:15:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:02,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:02,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:02,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:15:02,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:02,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:15:02,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:02,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:02,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:02,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:02,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:02,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:02,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:02,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:02,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:02,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:02,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:02,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:02,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:02,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:02,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:02,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:02,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:02,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:02,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:15:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:02,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:02,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:02,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:15:02,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:02,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:15:02,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:02,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:02,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:15:02,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:02,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:15:02,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:02,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:02,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:02,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:02,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:02,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:02,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:02,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:02,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:02,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:02,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:02,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:02,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:02,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:15:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:02,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:02,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:02,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 08:15:02,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:02,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:15:02,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:02,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:02,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:15:02,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:02,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 08:15:02,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:02,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:02,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:02,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:02,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:02,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:02,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:02,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:02,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:02,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:02,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:02,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:02,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:02,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 08:15:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:02,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:02,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:02,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:02,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:02,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:02,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:02,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:02,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:02,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 08:15:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:02,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:02,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:02,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:02,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:02,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:02,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:02,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:02,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:02,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:15:02,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:02,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:02,951 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 08:15:02,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1142634138] [2020-10-14 08:15:02,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:15:02,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:15:02,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026310418] [2020-10-14 08:15:02,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:15:02,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:15:02,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:15:02,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:15:02,955 INFO L87 Difference]: Start difference. First operand 749 states and 1074 transitions. Second operand 12 states. [2020-10-14 08:15:03,118 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:15:06,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:15:06,748 INFO L93 Difference]: Finished difference Result 1525 states and 2179 transitions. [2020-10-14 08:15:06,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 08:15:06,749 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 95 [2020-10-14 08:15:06,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:15:06,756 INFO L225 Difference]: With dead ends: 1525 [2020-10-14 08:15:06,756 INFO L226 Difference]: Without dead ends: 804 [2020-10-14 08:15:06,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:15:06,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2020-10-14 08:15:06,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 749. [2020-10-14 08:15:06,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2020-10-14 08:15:06,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1072 transitions. [2020-10-14 08:15:06,846 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1072 transitions. Word has length 95 [2020-10-14 08:15:06,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:15:06,847 INFO L479 AbstractCegarLoop]: Abstraction has 749 states and 1072 transitions. [2020-10-14 08:15:06,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:15:06,847 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1072 transitions. [2020-10-14 08:15:06,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 08:15:06,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:15:06,849 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] [2020-10-14 08:15:06,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:15:06,850 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:15:06,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:15:06,850 INFO L82 PathProgramCache]: Analyzing trace with hash 974462700, now seen corresponding path program 1 times [2020-10-14 08:15:06,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:15:06,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135669255] [2020-10-14 08:15:06,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:15:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:06,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:06,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:06,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:07,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:11,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:11,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:15:11,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:15:11,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:15:11,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:11,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:11,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:15:11,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 08:15:11,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:15:11,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:12,040 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:15:12,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:15:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:12,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:12,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:12,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:12,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:12,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:15:12,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:12,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:12,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:12,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:12,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:12,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:12,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:15:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:12,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:12,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:12,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:12,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:12,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:12,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:12,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:12,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:12,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:12,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:12,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:12,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:15:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:12,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:12,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:12,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:12,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:12,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:12,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:12,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:12,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:12,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:12,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:12,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:12,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:15:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:12,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:12,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:12,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:15:12,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:12,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 08:15:12,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:12,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:12,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:15:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:15:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 08:15:12,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:12,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:12,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:12,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:12,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:12,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:12,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:15:12,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:12,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:12,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:15:12,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:12,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:15:12,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:12,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:15:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:12,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:12,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:12,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:15:12,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:12,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:15:12,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:12,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:12,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:12,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 08:15:12,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:12,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:12,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:12,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:12,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:12,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:12,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:12,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:15:12,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:12,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:12,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:12,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:12,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:12,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:12,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:15:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:12,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:12,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:12,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:15:12,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:12,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:15:12,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:12,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:12,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:12,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 08:15:12,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:12,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:12,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:12,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:12,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:12,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:12,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:12,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:15:12,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:12,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:12,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:12,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:12,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:12,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:12,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 08:15:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:12,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:12,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:12,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 08:15:12,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:12,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:15:12,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:12,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:12,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:12,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 08:15:12,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:12,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:12,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:12,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:12,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:12,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:12,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:12,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:12,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:12,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:12,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:12,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:12,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:12,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:12,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 08:15:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:12,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:12,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:12,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:12,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:12,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:15:12,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:12,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:12,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:12,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:15:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:12,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:12,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:12,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:12,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:12,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:15:12,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:12,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:12,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:12,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:15:12,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:12,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:12,533 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 08:15:12,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [135669255] [2020-10-14 08:15:12,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:15:12,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-14 08:15:12,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446725262] [2020-10-14 08:15:12,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 08:15:12,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:15:12,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 08:15:12,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:15:12,536 INFO L87 Difference]: Start difference. First operand 749 states and 1072 transitions. Second operand 15 states. [2020-10-14 08:15:12,902 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 08:15:15,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:15:15,170 INFO L93 Difference]: Finished difference Result 1492 states and 2126 transitions. [2020-10-14 08:15:15,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 08:15:15,170 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 94 [2020-10-14 08:15:15,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:15:15,177 INFO L225 Difference]: With dead ends: 1492 [2020-10-14 08:15:15,177 INFO L226 Difference]: Without dead ends: 771 [2020-10-14 08:15:15,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2020-10-14 08:15:15,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2020-10-14 08:15:15,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 769. [2020-10-14 08:15:15,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2020-10-14 08:15:15,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1088 transitions. [2020-10-14 08:15:15,260 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1088 transitions. Word has length 94 [2020-10-14 08:15:15,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:15:15,261 INFO L479 AbstractCegarLoop]: Abstraction has 769 states and 1088 transitions. [2020-10-14 08:15:15,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 08:15:15,261 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1088 transitions. [2020-10-14 08:15:15,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 08:15:15,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:15:15,262 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] [2020-10-14 08:15:15,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:15:15,263 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:15:15,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:15:15,263 INFO L82 PathProgramCache]: Analyzing trace with hash 20522542, now seen corresponding path program 1 times [2020-10-14 08:15:15,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:15:15,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050474399] [2020-10-14 08:15:15,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:15:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:15,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:15,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:15,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:17,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:20,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:20,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:15:20,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:15:20,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 08:15:20,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:20,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:20,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:15:20,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-14 08:15:20,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:15:20,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:20,426 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:15:20,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:15:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:20,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:20,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:20,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:20,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:20,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:15:20,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:20,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:20,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:20,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:20,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:20,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:20,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:15:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:20,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:20,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:20,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:20,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:20,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:15:20,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:20,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:20,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:20,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:20,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:20,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:20,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:15:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:20,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:20,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:20,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:20,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:20,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:15:20,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:20,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:20,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:20,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:20,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:20,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:20,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:15:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:20,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:20,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:20,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:15:20,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:20,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:15:20,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:20,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:20,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:20,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:20,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:20,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:20,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:20,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:20,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:20,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:20,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:20,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:15:20,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:20,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:20,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:20,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:15:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:20,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:20,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:20,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:15:20,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:20,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:15:20,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:20,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:20,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:20,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:20,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:20,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:20,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:20,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:20,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:20,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:20,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:20,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:15:20,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:20,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:20,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:20,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:20,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:20,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:20,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 08:15:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:20,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:20,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:20,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:15:20,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:20,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:15:20,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:20,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:20,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:20,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:20,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:20,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:20,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:20,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:20,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:20,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:20,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:20,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:20,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:20,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:20,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:20,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:20,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:20,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:20,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-14 08:15:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:20,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:20,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:20,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 08:15:20,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:20,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:15:20,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:20,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:20,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:20,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:20,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:20,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:20,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:20,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:20,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:20,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:20,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:20,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:20,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:20,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:20,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:20,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:20,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:20,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:20,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:20,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 08:15:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:20,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:20,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:20,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:20,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:20,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:20,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:20,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:20,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:20,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:20,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:20,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:20,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:15:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:20,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:20,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:20,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:20,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:20,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:15:20,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:20,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:20,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:15:20,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 08:15:20,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:15:20,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:20,863 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 08:15:20,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050474399] [2020-10-14 08:15:20,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:15:20,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-14 08:15:20,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123718609] [2020-10-14 08:15:20,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 08:15:20,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:15:20,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 08:15:20,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-14 08:15:20,866 INFO L87 Difference]: Start difference. First operand 769 states and 1088 transitions. Second operand 14 states. [2020-10-14 08:15:21,105 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-14 08:15:21,278 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 08:15:22,614 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-14 08:15:23,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:15:23,642 INFO L93 Difference]: Finished difference Result 1397 states and 1965 transitions. [2020-10-14 08:15:23,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:15:23,649 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 94 [2020-10-14 08:15:23,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:15:23,653 INFO L225 Difference]: With dead ends: 1397 [2020-10-14 08:15:23,653 INFO L226 Difference]: Without dead ends: 618 [2020-10-14 08:15:23,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=165, Invalid=387, Unknown=0, NotChecked=0, Total=552 [2020-10-14 08:15:23,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-10-14 08:15:23,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2020-10-14 08:15:23,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2020-10-14 08:15:23,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 871 transitions. [2020-10-14 08:15:23,721 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 871 transitions. Word has length 94 [2020-10-14 08:15:23,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:15:23,721 INFO L479 AbstractCegarLoop]: Abstraction has 618 states and 871 transitions. [2020-10-14 08:15:23,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 08:15:23,721 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 871 transitions. [2020-10-14 08:15:23,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 08:15:23,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:15:23,723 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] [2020-10-14 08:15:23,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:15:23,723 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:15:23,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:15:23,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1774628497, now seen corresponding path program 1 times [2020-10-14 08:15:23,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:15:23,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898737165] [2020-10-14 08:15:23,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:15:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:23,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:23,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:23,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:23,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:23,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:25,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:27,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:27,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:15:27,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:15:27,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4197 [2020-10-14 08:15:27,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:27,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:27,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:15:27,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-14 08:15:27,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:15:27,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:28,136 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:15:28,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:15:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:28,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:28,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:28,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:28,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:28,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:15:28,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:28,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:28,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:28,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:28,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:28,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:28,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:15:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:28,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:28,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:28,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:28,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:28,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:15:28,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:28,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:28,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:28,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:28,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:28,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:28,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:15:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:28,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:28,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:28,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:28,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:28,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:28,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:28,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:28,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:28,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:28,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:28,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:28,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:15:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:28,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:28,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:28,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:15:28,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:28,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:15:28,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:28,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:28,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:28,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:28,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:28,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:28,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:28,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:28,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:28,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:28,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:28,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:28,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:28,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:28,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:28,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:15:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:28,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:28,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:28,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:15:28,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:28,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:15:28,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:28,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:28,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:28,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:28,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:28,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:28,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:28,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:28,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:28,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:28,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:28,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:28,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:28,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:28,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:28,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:28,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:28,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:28,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:15:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:28,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:28,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:28,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:15:28,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:28,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:15:28,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:28,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:28,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:28,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:28,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:28,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:28,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:28,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:28,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:28,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:15:28,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:28,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:28,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:28,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:28,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:28,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:28,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:15:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:28,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:28,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:28,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 08:15:28,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:28,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:15:28,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:28,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:28,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:28,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:28,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:28,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:28,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:28,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:28,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:28,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:28,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:28,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:15:28,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:28,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:28,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:28,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:28,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:28,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:28,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 08:15:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:28,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:28,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:28,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:28,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:28,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:28,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:28,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:28,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:28,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:28,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:28,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:28,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:15:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:28,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:28,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:28,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:28,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:28,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:28,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:28,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:28,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:28,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:28,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:28,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:28,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 08:15:28,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898737165] [2020-10-14 08:15:28,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:15:28,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 08:15:28,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964180870] [2020-10-14 08:15:28,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:15:28,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:15:28,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:15:28,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:15:28,436 INFO L87 Difference]: Start difference. First operand 618 states and 871 transitions. Second operand 13 states. [2020-10-14 08:15:29,833 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:15:29,981 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 08:15:30,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:15:30,948 INFO L93 Difference]: Finished difference Result 1223 states and 1726 transitions. [2020-10-14 08:15:30,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:15:30,949 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 94 [2020-10-14 08:15:30,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:15:30,954 INFO L225 Difference]: With dead ends: 1223 [2020-10-14 08:15:30,954 INFO L226 Difference]: Without dead ends: 633 [2020-10-14 08:15:30,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-14 08:15:30,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2020-10-14 08:15:31,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2020-10-14 08:15:31,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2020-10-14 08:15:31,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 883 transitions. [2020-10-14 08:15:31,031 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 883 transitions. Word has length 94 [2020-10-14 08:15:31,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:15:31,032 INFO L479 AbstractCegarLoop]: Abstraction has 633 states and 883 transitions. [2020-10-14 08:15:31,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:15:31,032 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 883 transitions. [2020-10-14 08:15:31,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 08:15:31,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:15:31,037 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] [2020-10-14 08:15:31,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:15:31,037 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:15:31,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:15:31,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1967227723, now seen corresponding path program 1 times [2020-10-14 08:15:31,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:15:31,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879938249] [2020-10-14 08:15:31,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:15:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:31,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:31,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:31,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:31,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:31,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:32,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:35,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:35,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-14 08:15:35,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:15:35,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4338 [2020-10-14 08:15:35,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:35,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:35,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:15:35,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-10-14 08:15:35,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:15:35,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:35,574 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:15:35,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:15:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:35,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:35,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:35,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:35,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:35,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:15:35,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:35,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:35,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:35,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:35,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:35,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:35,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:15:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:35,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:35,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:35,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:35,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:35,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:35,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:35,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:35,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:35,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:35,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:35,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:35,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:15:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:35,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:35,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:35,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:35,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:35,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:35,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:35,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:35,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:35,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:35,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:35,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:35,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:15:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:35,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:35,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:35,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:15:35,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:35,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:15:35,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:35,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:35,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:35,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:35,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:35,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:35,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:35,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:35,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:35,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:35,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:35,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:35,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:35,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:35,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:35,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:35,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:35,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:35,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:15:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:35,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:35,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:35,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:15:35,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:35,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:15:35,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:35,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:35,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:35,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:35,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:35,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:35,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:35,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:35,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:35,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:35,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:35,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:35,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:35,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:35,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:35,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:35,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:35,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:35,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:15:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:35,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:35,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:35,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:15:35,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:35,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:15:35,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:35,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:35,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:35,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:35,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:35,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:35,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:35,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:35,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:35,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:35,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:35,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:35,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:35,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:35,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:35,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:35,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:35,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:35,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:15:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:35,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:35,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:35,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 08:15:35,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:35,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:15:35,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:35,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:35,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:35,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:35,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:35,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:35,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:35,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:35,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:35,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:35,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:35,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:35,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:35,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:35,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:35,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:35,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:35,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:35,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 08:15:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:35,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:35,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:35,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:35,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:35,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:35,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:35,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:35,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:35,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:35,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:35,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:35,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:15:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:35,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:35,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:35,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:35,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:35,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:35,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:35,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:35,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:35,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:35,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:35,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:35,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:15:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:35,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:35,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:35,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:15:35,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:35,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:35,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:35,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:35,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:35,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:35,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:35,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:35,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 08:15:35,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879938249] [2020-10-14 08:15:35,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:15:35,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 08:15:35,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16455175] [2020-10-14 08:15:35,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:15:35,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:15:35,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:15:35,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:15:35,842 INFO L87 Difference]: Start difference. First operand 633 states and 883 transitions. Second operand 13 states. [2020-10-14 08:15:37,273 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:15:37,436 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-14 08:15:38,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:15:38,307 INFO L93 Difference]: Finished difference Result 1253 states and 1759 transitions. [2020-10-14 08:15:38,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:15:38,308 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 102 [2020-10-14 08:15:38,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:15:38,313 INFO L225 Difference]: With dead ends: 1253 [2020-10-14 08:15:38,313 INFO L226 Difference]: Without dead ends: 648 [2020-10-14 08:15:38,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-14 08:15:38,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2020-10-14 08:15:38,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 648. [2020-10-14 08:15:38,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2020-10-14 08:15:38,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 895 transitions. [2020-10-14 08:15:38,385 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 895 transitions. Word has length 102 [2020-10-14 08:15:38,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:15:38,386 INFO L479 AbstractCegarLoop]: Abstraction has 648 states and 895 transitions. [2020-10-14 08:15:38,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:15:38,386 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 895 transitions. [2020-10-14 08:15:38,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 08:15:38,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:15:38,388 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] [2020-10-14 08:15:38,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:15:38,389 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:15:38,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:15:38,389 INFO L82 PathProgramCache]: Analyzing trace with hash -569732523, now seen corresponding path program 1 times [2020-10-14 08:15:38,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:15:38,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129528356] [2020-10-14 08:15:38,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:15:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:38,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:38,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:38,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:38,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:38,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:40,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:40,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:43,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:43,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 08:15:43,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:15:43,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:15:43,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:43,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:15:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-14 08:15:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:15:43,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:43,585 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:15:43,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:15:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:43,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:43,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:43,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:43,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:43,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:15:43,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:43,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:43,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:43,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:43,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:43,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:43,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:15:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:43,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:43,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:43,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:43,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:43,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:15:43,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:43,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:43,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:43,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:43,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:43,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:43,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:15:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:43,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:43,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:43,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:43,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:43,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:15:43,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:43,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:43,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:43,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:43,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:43,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:43,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:15:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:43,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:43,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:43,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:15:43,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:43,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:15:43,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:43,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:43,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:43,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:43,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:43,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:43,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:43,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:43,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:43,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:43,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:43,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:43,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:43,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:43,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:43,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:43,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:43,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:43,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:15:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:43,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:43,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:43,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:15:43,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:43,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:15:43,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:43,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:43,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:43,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:43,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:43,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:43,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:43,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:43,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:43,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:43,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:43,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:43,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:43,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:43,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:43,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:43,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:43,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:43,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:15:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:43,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:43,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:43,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:15:43,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:43,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:15:43,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:43,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:43,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:43,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:43,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:43,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:43,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:43,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:43,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:43,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:43,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:43,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:43,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:43,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:43,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:43,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:43,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:43,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:43,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:15:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:43,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:43,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:43,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 08:15:43,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:43,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:15:43,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:43,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:43,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:43,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:43,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:43,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:43,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:43,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:43,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:43,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:43,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:43,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:43,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:43,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:43,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:43,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:43,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 08:15:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:43,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:43,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:43,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:43,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:43,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:43,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:43,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:43,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:43,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:43,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:43,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:43,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:15:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:43,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:43,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:43,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:43,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:43,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:43,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:43,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:43,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:43,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:43,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:43,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:43,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:15:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:43,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:43,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:43,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:15:43,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:43,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:43,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:43,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:43,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:43,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:43,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:43,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:43,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 08:15:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:43,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:43,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:43,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:15:43,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:43,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:43,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:43,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:43,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:43,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:43,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:43,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:43,859 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 08:15:43,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129528356] [2020-10-14 08:15:43,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:15:43,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 08:15:43,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743145734] [2020-10-14 08:15:43,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:15:43,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:15:43,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:15:43,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:15:43,861 INFO L87 Difference]: Start difference. First operand 648 states and 895 transitions. Second operand 13 states. [2020-10-14 08:15:45,478 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:15:45,653 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-14 08:15:46,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:15:46,429 INFO L93 Difference]: Finished difference Result 1280 states and 1771 transitions. [2020-10-14 08:15:46,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:15:46,430 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 110 [2020-10-14 08:15:46,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:15:46,435 INFO L225 Difference]: With dead ends: 1280 [2020-10-14 08:15:46,435 INFO L226 Difference]: Without dead ends: 660 [2020-10-14 08:15:46,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-14 08:15:46,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2020-10-14 08:15:46,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 660. [2020-10-14 08:15:46,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 660 states. [2020-10-14 08:15:46,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 904 transitions. [2020-10-14 08:15:46,506 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 904 transitions. Word has length 110 [2020-10-14 08:15:46,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:15:46,506 INFO L479 AbstractCegarLoop]: Abstraction has 660 states and 904 transitions. [2020-10-14 08:15:46,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:15:46,507 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 904 transitions. [2020-10-14 08:15:46,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 08:15:46,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:15:46,509 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] [2020-10-14 08:15:46,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:15:46,509 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:15:46,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:15:46,510 INFO L82 PathProgramCache]: Analyzing trace with hash -2103567437, now seen corresponding path program 1 times [2020-10-14 08:15:46,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:15:46,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726824525] [2020-10-14 08:15:46,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:15:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:46,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:46,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:46,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:46,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:46,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:48,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:51,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:51,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 08:15:51,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:15:51,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 08:15:51,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:51,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:51,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:15:51,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-14 08:15:51,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:15:51,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:51,742 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:15:51,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:15:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:51,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:51,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:51,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:51,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:51,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:15:51,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:51,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:51,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:51,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:51,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:51,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:51,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:15:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:51,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:51,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:51,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:51,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:51,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:15:51,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:51,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:51,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:51,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:51,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:51,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:51,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:15:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:51,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:51,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:51,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:51,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:51,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:51,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:51,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:51,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:51,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:51,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:51,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:51,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:15:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:51,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:51,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:51,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:15:51,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:51,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:15:51,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:51,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:51,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:51,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:51,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:51,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:51,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:51,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:51,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:51,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:51,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:51,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:15:51,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:51,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:51,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:51,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:51,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:51,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:51,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:15:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:51,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:51,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:51,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:15:51,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:51,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:15:51,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:51,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:51,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:51,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:51,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:51,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:51,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:51,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:51,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:51,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:51,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:51,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:15:51,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:51,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:51,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:51,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:51,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:51,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:51,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:15:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:51,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:51,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:51,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:15:51,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:51,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:15:51,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:51,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:51,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:51,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:51,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:51,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:51,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:51,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:51,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:51,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:51,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:51,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:51,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:51,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:51,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:51,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:51,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:51,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:51,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:15:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:51,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:51,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:51,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 08:15:51,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:51,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:15:51,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:51,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:51,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:51,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:51,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:51,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:51,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:51,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:51,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:51,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:51,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:51,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:51,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:15:51,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:51,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:51,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:51,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:51,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:51,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:51,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 08:15:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:51,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:51,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:51,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:51,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:51,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:15:51,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:51,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:51,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:51,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:51,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:51,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:51,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:15:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:51,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:51,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:51,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:51,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:51,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:51,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:51,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:51,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:51,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:51,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:51,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:52,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:15:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:52,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:52,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:52,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:15:52,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:52,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:52,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:52,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:52,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:52,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:52,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:52,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:15:52,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 08:15:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:52,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:52,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:52,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:15:52,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:52,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:15:52,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:52,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:52,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:52,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:52,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:52,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:52,023 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 08:15:52,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726824525] [2020-10-14 08:15:52,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:15:52,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 08:15:52,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902612878] [2020-10-14 08:15:52,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:15:52,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:15:52,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:15:52,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:15:52,025 INFO L87 Difference]: Start difference. First operand 660 states and 904 transitions. Second operand 13 states. [2020-10-14 08:15:53,568 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:15:53,731 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-14 08:15:54,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:15:54,563 INFO L93 Difference]: Finished difference Result 1307 states and 1801 transitions. [2020-10-14 08:15:54,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:15:54,563 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 110 [2020-10-14 08:15:54,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:15:54,569 INFO L225 Difference]: With dead ends: 1307 [2020-10-14 08:15:54,569 INFO L226 Difference]: Without dead ends: 675 [2020-10-14 08:15:54,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-14 08:15:54,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2020-10-14 08:15:54,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 675. [2020-10-14 08:15:54,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 675 states. [2020-10-14 08:15:54,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 916 transitions. [2020-10-14 08:15:54,639 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 916 transitions. Word has length 110 [2020-10-14 08:15:54,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:15:54,640 INFO L479 AbstractCegarLoop]: Abstraction has 675 states and 916 transitions. [2020-10-14 08:15:54,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:15:54,640 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 916 transitions. [2020-10-14 08:15:54,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-14 08:15:54,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:15:54,643 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2020-10-14 08:15:54,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:15:54,643 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:15:54,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:15:54,643 INFO L82 PathProgramCache]: Analyzing trace with hash -594125963, now seen corresponding path program 1 times [2020-10-14 08:15:54,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:15:54,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171222011] [2020-10-14 08:15:54,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:15:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:54,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:54,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:54,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:54,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:54,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:55,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:59,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:59,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 08:15:59,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:15:59,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 08:15:59,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:59,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:59,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:15:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:15:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 08:15:59,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:59,856 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:15:59,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:15:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:59,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:59,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:59,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:59,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:59,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:15:59,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:59,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:59,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:15:59,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:59,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:15:59,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:59,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:15:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:59,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:59,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:59,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:59,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:59,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:15:59,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:59,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:59,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:15:59,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:59,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:15:59,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:59,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:15:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:59,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:59,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:59,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:15:59,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:59,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:15:59,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:59,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:59,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:15:59,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:59,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:15:59,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:59,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:15:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:59,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:59,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:59,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:15:59,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:59,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:15:59,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:59,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:15:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:59,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:15:59,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:59,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:15:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:59,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:59,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:59,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:15:59,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:59,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:15:59,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:59,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:59,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:15:59,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:59,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:15:59,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:15:59,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:15:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:15:59,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:15:59,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:15:59,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:15:59,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:15:59,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:15:59,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:15:59,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:15:59,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:15:59,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:15:59,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 08:15:59,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:00,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:00,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:00,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:00,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:00,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:00,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:00,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:00,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:00,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:00,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:00,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:00,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:00,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:16:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:00,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:00,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:00,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:16:00,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:00,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:16:00,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:00,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:00,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:00,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:00,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 08:16:00,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:00,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:00,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:00,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:00,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:00,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:00,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:00,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:00,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:00,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:00,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:00,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:00,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:00,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:16:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:00,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:00,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:00,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 08:16:00,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:00,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:16:00,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:00,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:00,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:16:00,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:16:00,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:16:00,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:00,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:00,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:00,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:00,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:00,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:00,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:00,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:00,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:00,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:00,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:00,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:16:00,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:00,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 08:16:00,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:00,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:00,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:00,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:00,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:00,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:16:00,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:00,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:00,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:00,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:00,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:16:00,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:00,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:16:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:00,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:00,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:00,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:00,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:00,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:00,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:00,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:00,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:00,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:16:00,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:00,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:00,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:16:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:00,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:00,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:00,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:00,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:00,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:00,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:00,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:00,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:00,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:16:00,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:00,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:00,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 08:16:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:00,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:00,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:00,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:00,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:00,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:00,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:00,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:16:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:00,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:00,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-14 08:16:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:00,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:00,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:00,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:00,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:00,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:00,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:00,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:00,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:00,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:16:00,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:00,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:00,256 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 08:16:00,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171222011] [2020-10-14 08:16:00,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:16:00,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-14 08:16:00,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219993313] [2020-10-14 08:16:00,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 08:16:00,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:16:00,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 08:16:00,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2020-10-14 08:16:00,258 INFO L87 Difference]: Start difference. First operand 675 states and 916 transitions. Second operand 17 states. [2020-10-14 08:16:00,429 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-14 08:16:02,230 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:16:04,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:16:04,019 INFO L93 Difference]: Finished difference Result 1470 states and 1983 transitions. [2020-10-14 08:16:04,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 08:16:04,020 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 118 [2020-10-14 08:16:04,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:16:04,027 INFO L225 Difference]: With dead ends: 1470 [2020-10-14 08:16:04,027 INFO L226 Difference]: Without dead ends: 823 [2020-10-14 08:16:04,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=321, Invalid=939, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 08:16:04,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2020-10-14 08:16:04,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 802. [2020-10-14 08:16:04,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 802 states. [2020-10-14 08:16:04,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1083 transitions. [2020-10-14 08:16:04,119 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1083 transitions. Word has length 118 [2020-10-14 08:16:04,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:16:04,120 INFO L479 AbstractCegarLoop]: Abstraction has 802 states and 1083 transitions. [2020-10-14 08:16:04,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 08:16:04,120 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1083 transitions. [2020-10-14 08:16:04,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-14 08:16:04,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:16:04,123 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2020-10-14 08:16:04,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 08:16:04,123 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:16:04,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:16:04,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1788173450, now seen corresponding path program 1 times [2020-10-14 08:16:04,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:16:04,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972821140] [2020-10-14 08:16:04,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:16:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:04,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:04,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:04,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:04,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:04,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:04,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:05,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-14 08:16:09,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:16:09,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 08:16:09,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:16:09,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:16:09,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-14 08:16:09,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,300 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:16:09,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:16:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:09,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:16:09,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:09,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:09,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:16:09,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:16:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:09,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:09,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:09,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:09,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:16:09,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:16:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:09,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:09,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:09,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:09,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:16:09,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:16:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:16:09,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:16:09,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:09,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:09,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:16:09,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:09,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:09,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:09,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:09,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:09,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:16:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:16:09,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:16:09,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:09,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:09,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 08:16:09,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:09,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:09,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:09,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:09,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:09,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:16:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:16:09,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:16:09,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:09,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:09,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 08:16:09,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:09,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:09,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:09,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:09,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:09,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:16:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 08:16:09,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:16:09,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:16:09,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:16:09,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 08:16:09,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:09,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:09,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:09,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:09,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:16:09,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 08:16:09,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:09,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:09,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:09,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:09,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:16:09,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 08:16:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:09,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:09,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:09,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:16:09,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:09,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 08:16:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:09,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:09,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:09,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:16:09,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:09,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 08:16:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:09,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:09,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:09,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:16:09,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:09,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-14 08:16:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:09,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:09,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:09,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:09,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:09,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:09,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:09,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:09,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:09,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:16:09,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:09,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:09,672 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 08:16:09,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972821140] [2020-10-14 08:16:09,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:16:09,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-14 08:16:09,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664474508] [2020-10-14 08:16:09,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 08:16:09,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:16:09,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 08:16:09,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:16:09,675 INFO L87 Difference]: Start difference. First operand 802 states and 1083 transitions. Second operand 16 states. [2020-10-14 08:16:09,822 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:16:10,135 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-14 08:16:11,409 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-10-14 08:16:11,821 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2020-10-14 08:16:13,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:16:13,880 INFO L93 Difference]: Finished difference Result 1524 states and 2064 transitions. [2020-10-14 08:16:13,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 08:16:13,880 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 119 [2020-10-14 08:16:13,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:16:13,887 INFO L225 Difference]: With dead ends: 1524 [2020-10-14 08:16:13,887 INFO L226 Difference]: Without dead ends: 859 [2020-10-14 08:16:13,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=347, Invalid=985, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 08:16:13,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2020-10-14 08:16:13,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 841. [2020-10-14 08:16:13,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2020-10-14 08:16:13,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1137 transitions. [2020-10-14 08:16:13,987 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1137 transitions. Word has length 119 [2020-10-14 08:16:13,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:16:13,988 INFO L479 AbstractCegarLoop]: Abstraction has 841 states and 1137 transitions. [2020-10-14 08:16:13,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 08:16:13,988 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1137 transitions. [2020-10-14 08:16:13,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-14 08:16:13,992 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:16:13,992 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2020-10-14 08:16:13,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 08:16:13,992 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:16:13,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:16:13,992 INFO L82 PathProgramCache]: Analyzing trace with hash -42747048, now seen corresponding path program 1 times [2020-10-14 08:16:13,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:16:13,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725261576] [2020-10-14 08:16:13,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:16:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:14,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:14,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:14,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:14,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 08:16:19,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:16:19,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:16:19,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:16:19,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-14 08:16:19,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:16:19,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:19,203 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:16:19,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:16:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:19,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:19,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:19,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:16:19,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:19,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:19,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:19,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:19,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:16:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:19,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:19,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:19,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:16:19,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:19,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:19,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:19,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:19,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:16:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:19,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:19,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:19,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:16:19,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:19,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:19,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:19,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:19,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:16:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:19,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:16:19,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:19,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:16:19,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:19,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:19,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:19,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:19,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:19,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:19,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:19,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:19,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:19,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:19,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:19,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:19,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:16:19,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:19,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:16:19,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:19,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:16:19,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:19,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:19,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:19,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:19,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:19,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:19,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:19,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:19,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:19,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:19,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:19,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:19,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:16:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:19,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:16:19,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:19,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:16:19,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:19,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:19,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:19,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:19,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:19,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:19,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:19,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:19,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:19,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:19,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:16:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:19,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:16:19,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:19,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:16:19,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:19,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:19,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:19,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:19,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:19,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:19,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:19,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:19,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:19,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:19,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:19,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:19,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:16:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:19,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:19,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:19,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:19,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:19,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:19,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:19,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:19,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 08:16:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:19,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:19,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:19,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:19,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:19,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:19,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:19,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:19,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-14 08:16:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:19,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:19,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:19,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:19,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:19,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:19,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:19,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:19,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 08:16:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:19,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:19,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:19,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:19,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:19,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:19,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:19,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:19,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-14 08:16:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:19,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:19,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:19,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:19,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:19,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:19,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:19,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:19,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:19,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:19,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:19,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:19,472 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-14 08:16:19,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725261576] [2020-10-14 08:16:19,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:16:19,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 08:16:19,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332705471] [2020-10-14 08:16:19,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:16:19,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:16:19,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:16:19,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:16:19,474 INFO L87 Difference]: Start difference. First operand 841 states and 1137 transitions. Second operand 13 states. [2020-10-14 08:16:21,300 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:16:21,463 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-14 08:16:22,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:16:22,011 INFO L93 Difference]: Finished difference Result 1515 states and 2055 transitions. [2020-10-14 08:16:22,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:16:22,012 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 121 [2020-10-14 08:16:22,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:16:22,018 INFO L225 Difference]: With dead ends: 1515 [2020-10-14 08:16:22,018 INFO L226 Difference]: Without dead ends: 859 [2020-10-14 08:16:22,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-14 08:16:22,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2020-10-14 08:16:22,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 859. [2020-10-14 08:16:22,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859 states. [2020-10-14 08:16:22,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1152 transitions. [2020-10-14 08:16:22,120 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1152 transitions. Word has length 121 [2020-10-14 08:16:22,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:16:22,120 INFO L479 AbstractCegarLoop]: Abstraction has 859 states and 1152 transitions. [2020-10-14 08:16:22,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:16:22,121 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1152 transitions. [2020-10-14 08:16:22,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-14 08:16:22,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:16:22,124 INFO L422 BasicCegarLoop]: trace histogram [2, 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] [2020-10-14 08:16:22,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 08:16:22,124 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:16:22,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:16:22,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1401725263, now seen corresponding path program 1 times [2020-10-14 08:16:22,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:16:22,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [517349330] [2020-10-14 08:16:22,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:16:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:22,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:22,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-14 08:16:23,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:16:23,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1333 [2020-10-14 08:16:23,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:16:23,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 08:16:23,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 08:16:23,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,613 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:16:23,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:16:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:23,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:16:23,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:23,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:23,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:23,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:16:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:23,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:16:23,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:23,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:16:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:23,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:16:23,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:23,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:23,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:23,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:16:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:16:23,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:16:23,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:23,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:23,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:16:23,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:23,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:23,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:23,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:23,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:16:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:16:23,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:16:23,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:23,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:23,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 08:16:23,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:23,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:23,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:23,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:16:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:16:23,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:16:23,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:23,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:23,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 08:16:23,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:23,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:23,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:23,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:23,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:23,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:16:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:16:23,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:16:23,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:16:23,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:16:23,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 08:16:23,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:23,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:23,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:23,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:23,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:16:23,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:16:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:23,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:23,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:23,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:23,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:16:23,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:16:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-14 08:16:23,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:16:23,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:23,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-14 08:16:23,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:23,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 08:16:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:23,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:23,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:23,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:23,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:23,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 08:16:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:23,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:23,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:23,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:23,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:23,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 08:16:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:23,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:23,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:23,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:23,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:23,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 08:16:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:23,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:23,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:23,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:23,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:23,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 08:16:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:23,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:23,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:23,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:23,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:23,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:23,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:23,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:23,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:23,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:23,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:23,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:23,963 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 08:16:23,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [517349330] [2020-10-14 08:16:23,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:16:23,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-14 08:16:23,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990526174] [2020-10-14 08:16:23,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 08:16:23,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:16:23,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 08:16:23,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:16:23,965 INFO L87 Difference]: Start difference. First operand 859 states and 1152 transitions. Second operand 15 states. [2020-10-14 08:16:24,313 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 08:16:27,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:16:27,709 INFO L93 Difference]: Finished difference Result 1560 states and 2094 transitions. [2020-10-14 08:16:27,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 08:16:27,710 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 126 [2020-10-14 08:16:27,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:16:27,715 INFO L225 Difference]: With dead ends: 1560 [2020-10-14 08:16:27,715 INFO L226 Difference]: Without dead ends: 886 [2020-10-14 08:16:27,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=268, Invalid=788, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 08:16:27,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2020-10-14 08:16:27,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 859. [2020-10-14 08:16:27,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859 states. [2020-10-14 08:16:27,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1149 transitions. [2020-10-14 08:16:27,815 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1149 transitions. Word has length 126 [2020-10-14 08:16:27,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:16:27,816 INFO L479 AbstractCegarLoop]: Abstraction has 859 states and 1149 transitions. [2020-10-14 08:16:27,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 08:16:27,816 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1149 transitions. [2020-10-14 08:16:27,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-14 08:16:27,818 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:16:27,819 INFO L422 BasicCegarLoop]: trace histogram [2, 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] [2020-10-14 08:16:27,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 08:16:27,819 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:16:27,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:16:27,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1293323960, now seen corresponding path program 1 times [2020-10-14 08:16:27,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:16:27,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212277481] [2020-10-14 08:16:27,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:16:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:27,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:27,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-14 08:16:29,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:16:29,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1376 [2020-10-14 08:16:29,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:16:29,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:16:29,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 08:16:29,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,363 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:16:29,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:16:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:29,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:16:29,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:16:29,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:16:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:29,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:29,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:29,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:16:29,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:16:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:29,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:29,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:29,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:29,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:16:29,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:16:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:16:29,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:16:29,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:29,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:29,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:16:29,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:29,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:29,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:29,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:16:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:16:29,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:16:29,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:29,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 08:16:29,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:29,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:29,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:29,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:29,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:29,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:16:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:16:29,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:16:29,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 08:16:29,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:29,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:29,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:29,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:29,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:29,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:29,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:16:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:16:29,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:16:29,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:16:29,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:16:29,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 08:16:29,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:29,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:29,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:29,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:29,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:16:29,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:16:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:29,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:29,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:29,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:29,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:16:29,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:16:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-14 08:16:29,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:16:29,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:29,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-14 08:16:29,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:29,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 08:16:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:29,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:29,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:29,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:29,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:29,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 08:16:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:29,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:29,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:29,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:29,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:29,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 08:16:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:29,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:29,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:29,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 08:16:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:29,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:29,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:29,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 08:16:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:29,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:29,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:29,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:29,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:29,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:16:29,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:29,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:29,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:29,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:29,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:29,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:29,739 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 08:16:29,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212277481] [2020-10-14 08:16:29,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:16:29,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-14 08:16:29,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100864487] [2020-10-14 08:16:29,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 08:16:29,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:16:29,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 08:16:29,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2020-10-14 08:16:29,740 INFO L87 Difference]: Start difference. First operand 859 states and 1149 transitions. Second operand 17 states. [2020-10-14 08:16:29,894 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:16:30,251 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-14 08:16:33,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:16:33,677 INFO L93 Difference]: Finished difference Result 1560 states and 2100 transitions. [2020-10-14 08:16:33,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 08:16:33,678 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 126 [2020-10-14 08:16:33,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:16:33,684 INFO L225 Difference]: With dead ends: 1560 [2020-10-14 08:16:33,684 INFO L226 Difference]: Without dead ends: 868 [2020-10-14 08:16:33,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 08:16:33,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2020-10-14 08:16:33,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 859. [2020-10-14 08:16:33,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859 states. [2020-10-14 08:16:33,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1143 transitions. [2020-10-14 08:16:33,781 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1143 transitions. Word has length 126 [2020-10-14 08:16:33,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:16:33,782 INFO L479 AbstractCegarLoop]: Abstraction has 859 states and 1143 transitions. [2020-10-14 08:16:33,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 08:16:33,782 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1143 transitions. [2020-10-14 08:16:33,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-14 08:16:33,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:16:33,785 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:16:33,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 08:16:33,786 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:16:33,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:16:33,786 INFO L82 PathProgramCache]: Analyzing trace with hash 280307938, now seen corresponding path program 1 times [2020-10-14 08:16:33,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:16:33,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991711782] [2020-10-14 08:16:33,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:16:33,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:33,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:33,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:33,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:34,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:38,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:38,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 08:16:38,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:16:38,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 08:16:38,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:38,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:16:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:16:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 08:16:38,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 22 [2020-10-14 08:16:38,986 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:16:38,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:16:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:38,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:39,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:16:39,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:39,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:39,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:16:39,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:16:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:39,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:39,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:16:39,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:16:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:39,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:39,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:39,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:39,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:16:39,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:16:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:16:39,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:16:39,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:39,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:39,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:16:39,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:39,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:39,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:39,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:39,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:39,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:16:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:16:39,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:16:39,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:39,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:39,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 08:16:39,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:39,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:39,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:39,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:16:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:16:39,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:16:39,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:39,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:39,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 08:16:39,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:39,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:39,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:39,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:39,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:39,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:16:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 08:16:39,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:16:39,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:16:39,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:16:39,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 08:16:39,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:39,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:39,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:39,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:39,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:16:39,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 08:16:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:39,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:39,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:39,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:39,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:16:39,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 08:16:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-14 08:16:39,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:16:39,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:39,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-14 08:16:39,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:39,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 08:16:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:39,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:39,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:39,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:39,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:39,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 08:16:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:39,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:39,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:39,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:39,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:39,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 08:16:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:39,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:39,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:39,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:39,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:39,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 08:16:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:39,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:39,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:39,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:39,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:39,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 08:16:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:39,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:39,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:39,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:39,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:39,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:16:39,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:39,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:39,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:39,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:39,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:39,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:39,372 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 08:16:39,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991711782] [2020-10-14 08:16:39,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:16:39,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-14 08:16:39,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451383848] [2020-10-14 08:16:39,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 08:16:39,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:16:39,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 08:16:39,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2020-10-14 08:16:39,374 INFO L87 Difference]: Start difference. First operand 859 states and 1143 transitions. Second operand 17 states. [2020-10-14 08:16:39,522 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:16:39,862 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-14 08:16:43,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:16:43,296 INFO L93 Difference]: Finished difference Result 1545 states and 2061 transitions. [2020-10-14 08:16:43,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 08:16:43,297 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 127 [2020-10-14 08:16:43,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:16:43,304 INFO L225 Difference]: With dead ends: 1545 [2020-10-14 08:16:43,304 INFO L226 Difference]: Without dead ends: 868 [2020-10-14 08:16:43,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 08:16:43,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2020-10-14 08:16:43,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 859. [2020-10-14 08:16:43,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859 states. [2020-10-14 08:16:43,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1140 transitions. [2020-10-14 08:16:43,467 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1140 transitions. Word has length 127 [2020-10-14 08:16:43,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:16:43,468 INFO L479 AbstractCegarLoop]: Abstraction has 859 states and 1140 transitions. [2020-10-14 08:16:43,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 08:16:43,468 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1140 transitions. [2020-10-14 08:16:43,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-14 08:16:43,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:16:43,474 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:16:43,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 08:16:43,474 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:16:43,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:16:43,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1156326944, now seen corresponding path program 1 times [2020-10-14 08:16:43,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:16:43,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485548061] [2020-10-14 08:16:43,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:16:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:43,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:43,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:43,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 08:16:43,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:43,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 469 [2020-10-14 08:16:43,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:43,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:16:43,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:16:43,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:16:43,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,213 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:16:44,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:16:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:44,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:16:44,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:44,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:44,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:44,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:16:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:44,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:16:44,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:16:44,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:44,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:16:44,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 08:16:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:44,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:16:44,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:16:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 08:16:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:16:44,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 08:16:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:16:44,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:16:44,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:44,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:16:44,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:44,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:44,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:44,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:44,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:44,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:44,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:16:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:16:44,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:16:44,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:44,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 08:16:44,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:44,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:44,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:44,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:44,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:44,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:44,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:16:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:16:44,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:16:44,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:44,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 08:16:44,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:44,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:44,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:44,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:44,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:44,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:44,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:44,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:16:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 08:16:44,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:16:44,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:44,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 08:16:44,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:44,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:44,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:44,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:44,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:44,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:44,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 08:16:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:44,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:44,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:44,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:44,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:44,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 08:16:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-14 08:16:44,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:16:44,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:44,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-14 08:16:44,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:44,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 08:16:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:44,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:44,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:44,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:44,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:44,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 08:16:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:44,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:44,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:44,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 08:16:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:44,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:16:44,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:44,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:44,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:44,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 08:16:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:44,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:44,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:44,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:44,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:44,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 08:16:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:44,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:44,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:44,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:44,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:44,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:44,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:44,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:44,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:44,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:44,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:44,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:44,944 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 08:16:44,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485548061] [2020-10-14 08:16:44,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:16:44,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 08:16:44,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744786473] [2020-10-14 08:16:44,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 08:16:44,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:16:44,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 08:16:44,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-10-14 08:16:44,950 INFO L87 Difference]: Start difference. First operand 859 states and 1140 transitions. Second operand 16 states. [2020-10-14 08:16:45,209 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-14 08:16:45,518 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-14 08:16:45,748 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 08:16:49,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:16:49,013 INFO L93 Difference]: Finished difference Result 1695 states and 2246 transitions. [2020-10-14 08:16:49,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 08:16:49,014 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 127 [2020-10-14 08:16:49,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:16:49,020 INFO L225 Difference]: With dead ends: 1695 [2020-10-14 08:16:49,020 INFO L226 Difference]: Without dead ends: 859 [2020-10-14 08:16:49,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2020-10-14 08:16:49,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2020-10-14 08:16:49,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 859. [2020-10-14 08:16:49,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859 states. [2020-10-14 08:16:49,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1128 transitions. [2020-10-14 08:16:49,115 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1128 transitions. Word has length 127 [2020-10-14 08:16:49,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:16:49,115 INFO L479 AbstractCegarLoop]: Abstraction has 859 states and 1128 transitions. [2020-10-14 08:16:49,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 08:16:49,116 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1128 transitions. [2020-10-14 08:16:49,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-14 08:16:49,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:16:49,119 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:16:49,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 08:16:49,119 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:16:49,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:16:49,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1000804844, now seen corresponding path program 1 times [2020-10-14 08:16:49,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:16:49,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645314255] [2020-10-14 08:16:49,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:16:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:49,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:49,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:52,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:52,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 08:16:52,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:16:52,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3722 [2020-10-14 08:16:52,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:52,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:52,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:16:52,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:16:52,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 08:16:52,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,032 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:16:53,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:16:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:53,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:16:53,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:53,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:53,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:53,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:16:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 08:16:53,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:16:53,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:53,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:53,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:16:53,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 08:16:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:53,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:53,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:53,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:53,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:16:53,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:16:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:16:53,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:16:53,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:16:53,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:53,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:53,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:53,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:53,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:53,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 08:16:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:16:53,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 08:16:53,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:16:53,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:16:53,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 08:16:53,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:53,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:16:53,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:16:53,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:16:53,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:16:53,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 08:16:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:16:53,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:16:53,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:53,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:53,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 08:16:53,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:53,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:53,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:53,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:53,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:53,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:16:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 08:16:53,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:16:53,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:53,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:53,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 08:16:53,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:16:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:53,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:16:53,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:53,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:53,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:53,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 08:16:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:16:53,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:53,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:53,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:53,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:53,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 08:16:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-14 08:16:53,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 08:16:53,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:16:53,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 08:16:53,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 08:16:53,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 08:16:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:53,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:53,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:53,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:53,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:53,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:16:53,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 08:16:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:53,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:16:53,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:16:53,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:16:53,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 08:16:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:53,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:16:53,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:16:53,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:53,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:16:53,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 08:16:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:16:53,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:16:53,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:53,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:53,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:16:53,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 08:16:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:16:53,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:16:53,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:16:53,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:16:53,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:16:53,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:16:53,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:16:53,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:16:53,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:16:53,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:16:53,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:16:53,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:16:53,549 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 08:16:53,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645314255] [2020-10-14 08:16:53,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:16:53,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-14 08:16:53,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851063683] [2020-10-14 08:16:53,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 08:16:53,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:16:53,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 08:16:53,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:16:53,551 INFO L87 Difference]: Start difference. First operand 859 states and 1128 transitions. Second operand 19 states. [2020-10-14 08:16:53,762 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-14 08:16:53,931 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:16:54,830 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:16:56,087 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-14 08:16:56,267 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-14 08:16:56,428 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-14 08:16:58,202 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 08:16:58,368 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 08:16:58,511 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 08:16:58,673 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-14 08:16:58,835 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-14 08:16:59,149 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-14 08:17:01,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:17:01,663 INFO L93 Difference]: Finished difference Result 2145 states and 2805 transitions. [2020-10-14 08:17:01,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-14 08:17:01,664 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 138 [2020-10-14 08:17:01,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:17:01,671 INFO L225 Difference]: With dead ends: 2145 [2020-10-14 08:17:01,671 INFO L226 Difference]: Without dead ends: 1468 [2020-10-14 08:17:01,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=549, Invalid=1901, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 08:17:01,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2020-10-14 08:17:01,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1376. [2020-10-14 08:17:01,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2020-10-14 08:17:01,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1780 transitions. [2020-10-14 08:17:01,828 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1780 transitions. Word has length 138 [2020-10-14 08:17:01,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:17:01,830 INFO L479 AbstractCegarLoop]: Abstraction has 1376 states and 1780 transitions. [2020-10-14 08:17:01,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 08:17:01,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1780 transitions. [2020-10-14 08:17:01,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-14 08:17:01,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:17:01,833 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:17:01,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 08:17:01,833 INFO L427 AbstractCegarLoop]: === Iteration 21 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:17:01,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:17:01,834 INFO L82 PathProgramCache]: Analyzing trace with hash 741204332, now seen corresponding path program 1 times [2020-10-14 08:17:01,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:17:01,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882616184] [2020-10-14 08:17:01,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:17:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:01,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-14 08:17:02,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-14 08:17:02,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:17:02,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-10-14 08:17:02,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:17:02,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,174 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:17:02,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:17:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:02,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:17:02,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:17:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 08:17:02,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:17:02,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 08:17:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:02,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:17:02,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:17:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:17:02,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:17:02,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:02,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:02,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 08:17:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:17:02,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:17:02,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:02,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:17:02,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 08:17:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:17:02,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:17:02,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:02,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:02,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:17:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 08:17:02,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:17:02,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:02,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:17:02,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 08:17:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:02,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:02,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:17:02,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 08:17:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:02,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:02,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-14 08:17:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:17:02,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:02,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 08:17:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:17:02,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:02,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-14 08:17:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:02,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:17:02,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 08:17:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:02,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:02,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:02,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:17:02,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:02,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:02,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:02,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:02,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:02,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:02,448 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 08:17:02,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882616184] [2020-10-14 08:17:02,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:17:02,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 08:17:02,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729785014] [2020-10-14 08:17:02,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:17:02,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:17:02,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:17:02,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:17:02,450 INFO L87 Difference]: Start difference. First operand 1376 states and 1780 transitions. Second operand 13 states. [2020-10-14 08:17:04,149 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:17:04,300 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-14 08:17:05,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:17:05,104 INFO L93 Difference]: Finished difference Result 2482 states and 3241 transitions. [2020-10-14 08:17:05,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:17:05,104 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 140 [2020-10-14 08:17:05,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:17:05,111 INFO L225 Difference]: With dead ends: 2482 [2020-10-14 08:17:05,112 INFO L226 Difference]: Without dead ends: 1388 [2020-10-14 08:17:05,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-14 08:17:05,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2020-10-14 08:17:05,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1382. [2020-10-14 08:17:05,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1382 states. [2020-10-14 08:17:05,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1767 transitions. [2020-10-14 08:17:05,258 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1767 transitions. Word has length 140 [2020-10-14 08:17:05,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:17:05,259 INFO L479 AbstractCegarLoop]: Abstraction has 1382 states and 1767 transitions. [2020-10-14 08:17:05,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:17:05,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1767 transitions. [2020-10-14 08:17:05,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-14 08:17:05,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:17:05,262 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:17:05,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 08:17:05,262 INFO L427 AbstractCegarLoop]: === Iteration 22 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:17:05,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:17:05,263 INFO L82 PathProgramCache]: Analyzing trace with hash 723431665, now seen corresponding path program 1 times [2020-10-14 08:17:05,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:17:05,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392353459] [2020-10-14 08:17:05,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:17:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:05,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:05,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:05,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 08:17:10,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:17:10,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 08:17:10,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:17:10,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:17:10,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 08:17:10,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,459 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:17:10,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:17:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:10,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:17:10,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:10,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:10,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:10,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:17:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 08:17:10,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:17:10,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:10,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:10,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:17:10,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 08:17:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:10,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:10,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:10,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:10,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:17:10,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:17:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:17:10,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:17:10,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:17:10,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:10,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:10,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:10,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:10,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:10,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 08:17:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:17:10,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 08:17:10,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:17:10,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:17:10,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 08:17:10,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:10,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:17:10,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:17:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:17:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:17:10,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 08:17:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:17:10,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:17:10,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:10,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:10,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 08:17:10,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:10,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:10,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:10,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:10,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:10,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:17:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 08:17:10,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:17:10,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:10,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:10,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 08:17:10,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:10,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:17:10,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:10,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:10,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:10,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 08:17:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:10,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:10,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:10,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:10,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:10,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 08:17:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 08:17:10,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:17:10,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 08:17:10,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:17:10,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 08:17:10,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 08:17:10,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 08:17:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:10,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:10,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:10,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:10,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:10,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 08:17:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:17:10,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:10,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:10,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:10,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:10,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 08:17:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:17:10,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:10,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:10,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:10,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 08:17:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:17:10,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:17:10,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:17:10,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:10,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:17:10,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 08:17:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:10,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:10,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:10,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:17:10,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:10,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:17:10,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:10,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:10,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:10,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:10,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:17:10,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:10,997 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 08:17:10,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392353459] [2020-10-14 08:17:10,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:17:10,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-14 08:17:10,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608037041] [2020-10-14 08:17:10,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 08:17:10,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:17:10,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 08:17:10,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:17:10,998 INFO L87 Difference]: Start difference. First operand 1382 states and 1767 transitions. Second operand 19 states. [2020-10-14 08:17:11,208 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-14 08:17:11,378 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:17:12,321 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-14 08:17:13,710 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-14 08:17:15,551 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 08:17:15,824 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 08:17:15,989 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 08:17:16,165 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-14 08:17:16,332 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-14 08:17:16,518 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 08:17:17,346 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-14 08:17:19,114 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-14 08:17:19,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:17:19,381 INFO L93 Difference]: Finished difference Result 3117 states and 3955 transitions. [2020-10-14 08:17:19,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-14 08:17:19,383 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 141 [2020-10-14 08:17:19,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:17:19,393 INFO L225 Difference]: With dead ends: 3117 [2020-10-14 08:17:19,393 INFO L226 Difference]: Without dead ends: 2068 [2020-10-14 08:17:19,402 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=549, Invalid=1901, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 08:17:19,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2020-10-14 08:17:19,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 1694. [2020-10-14 08:17:19,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1694 states. [2020-10-14 08:17:19,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 2136 transitions. [2020-10-14 08:17:19,627 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 2136 transitions. Word has length 141 [2020-10-14 08:17:19,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:17:19,627 INFO L479 AbstractCegarLoop]: Abstraction has 1694 states and 2136 transitions. [2020-10-14 08:17:19,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 08:17:19,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 2136 transitions. [2020-10-14 08:17:19,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-14 08:17:19,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:17:19,630 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:17:19,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 08:17:19,630 INFO L427 AbstractCegarLoop]: === Iteration 23 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:17:19,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:17:19,631 INFO L82 PathProgramCache]: Analyzing trace with hash 162370640, now seen corresponding path program 1 times [2020-10-14 08:17:19,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:17:19,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993830827] [2020-10-14 08:17:19,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:17:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:19,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:19,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:21,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:21,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-14 08:17:21,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:17:21,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1897 [2020-10-14 08:17:21,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:21,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:21,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:17:21,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:17:21,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-14 08:17:21,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:21,709 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:17:21,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:17:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:21,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:21,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:21,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:21,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:21,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:17:21,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:21,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:21,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:21,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:21,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:21,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:21,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:17:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:21,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:21,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:21,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 08:17:21,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:21,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:17:21,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:21,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:21,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:21,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:21,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:17:21,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:21,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 08:17:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:21,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:21,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:21,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:21,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:21,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:21,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:21,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:21,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:17:21,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:21,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:17:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:21,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:21,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:21,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:17:21,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:21,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:17:21,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:21,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:21,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:21,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:21,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:17:21,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:21,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:21,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:21,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:21,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:21,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:21,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:21,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:21,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:21,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:21,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:21,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:21,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:21,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 08:17:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:21,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:21,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:21,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:17:21,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:21,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:17:21,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:21,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:21,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:21,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:21,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 08:17:21,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:21,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:21,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:21,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:21,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:21,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:21,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:21,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:21,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:21,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:21,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:21,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:21,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 08:17:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:21,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:21,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:21,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:17:21,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:21,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 08:17:21,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:21,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:17:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:17:21,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 08:17:21,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:21,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:21,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:21,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:21,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:21,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:21,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:17:21,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:21,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:21,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:17:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:17:21,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:17:21,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:21,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:17:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:21,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:21,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:21,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 08:17:21,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:21,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:17:21,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:21,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:21,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:21,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:21,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 08:17:21,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:21,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:21,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:21,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:21,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:21,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:21,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:17:21,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:21,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:21,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:21,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:21,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:21,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:22,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 08:17:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:22,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:22,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:22,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:22,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:22,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:22,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:22,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:22,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:22,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:22,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:22,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:22,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 08:17:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:22,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:22,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:22,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-14 08:17:22,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:22,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 08:17:22,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:22,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:22,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:17:22,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-14 08:17:22,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 08:17:22,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:22,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 08:17:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:22,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:22,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:22,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:22,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:22,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:22,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:22,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:22,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:22,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:22,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:22,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:22,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 08:17:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:22,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:22,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:22,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:17:22,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:22,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:22,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:22,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:22,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:22,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:22,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:22,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:22,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 08:17:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:22,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:22,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:22,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:17:22,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:22,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:22,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:22,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:22,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:22,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:22,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:22,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:22,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 08:17:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:22,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:22,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:22,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:17:22,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:22,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:17:22,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:22,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:22,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:22,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:22,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:22,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:22,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 08:17:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:22,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:22,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:22,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:17:22,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:22,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:17:22,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:22,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:22,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:17:22,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:22,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:17:22,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:22,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:17:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:22,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:22,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:22,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:22,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:22,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:17:22,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:22,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:22,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:22,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:22,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:17:22,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:22,208 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-14 08:17:22,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993830827] [2020-10-14 08:17:22,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:17:22,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-14 08:17:22,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998003195] [2020-10-14 08:17:22,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 08:17:22,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:17:22,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 08:17:22,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:17:22,210 INFO L87 Difference]: Start difference. First operand 1694 states and 2136 transitions. Second operand 19 states. [2020-10-14 08:17:22,432 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-14 08:17:22,607 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:17:23,690 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-14 08:17:24,200 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-14 08:17:25,294 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-14 08:17:27,166 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 08:17:27,541 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 08:17:27,745 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-14 08:17:27,973 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-14 08:17:28,187 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 08:17:31,422 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-14 08:17:32,243 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-14 08:17:32,646 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 143 [2020-10-14 08:17:33,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:17:33,313 INFO L93 Difference]: Finished difference Result 4065 states and 5125 transitions. [2020-10-14 08:17:33,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-14 08:17:33,314 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 146 [2020-10-14 08:17:33,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:17:33,326 INFO L225 Difference]: With dead ends: 4065 [2020-10-14 08:17:33,327 INFO L226 Difference]: Without dead ends: 2713 [2020-10-14 08:17:33,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=614, Invalid=2248, Unknown=0, NotChecked=0, Total=2862 [2020-10-14 08:17:33,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2020-10-14 08:17:33,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 1734. [2020-10-14 08:17:33,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1734 states. [2020-10-14 08:17:33,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1734 states to 1734 states and 2180 transitions. [2020-10-14 08:17:33,597 INFO L78 Accepts]: Start accepts. Automaton has 1734 states and 2180 transitions. Word has length 146 [2020-10-14 08:17:33,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:17:33,597 INFO L479 AbstractCegarLoop]: Abstraction has 1734 states and 2180 transitions. [2020-10-14 08:17:33,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 08:17:33,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1734 states and 2180 transitions. [2020-10-14 08:17:33,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-14 08:17:33,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:17:33,600 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:17:33,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 08:17:33,601 INFO L427 AbstractCegarLoop]: === Iteration 24 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:17:33,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:17:33,601 INFO L82 PathProgramCache]: Analyzing trace with hash 981502446, now seen corresponding path program 1 times [2020-10-14 08:17:33,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:17:33,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138999058] [2020-10-14 08:17:33,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:17:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:33,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:33,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-14 08:17:34,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:17:34,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 786 [2020-10-14 08:17:34,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:17:34,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-14 08:17:34,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-14 08:17:34,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:34,595 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:17:34,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:17:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:34,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:17:34,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:34,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:34,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:34,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:17:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 08:17:34,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:17:34,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:34,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:34,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:34,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 08:17:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:34,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:34,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:34,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:34,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:34,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:17:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:17:34,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:17:34,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:34,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:34,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:34,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:34,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:34,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:34,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:34,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:34,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 08:17:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:17:34,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 08:17:34,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:17:34,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 08:17:34,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:34,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:34,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:34,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:34,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:34,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:34,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 08:17:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:17:34,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:17:34,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:34,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 08:17:34,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:34,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:34,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:34,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:34,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:34,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:34,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:17:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 08:17:34,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:17:34,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:34,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 08:17:34,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:34,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:34,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:34,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:34,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:34,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:34,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 08:17:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:34,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:34,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:34,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:34,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:17:34,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 08:17:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 08:17:34,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:17:34,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:34,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-14 08:17:34,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:17:34,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:34,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 08:17:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:34,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:17:34,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:34,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:34,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:17:34,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-14 08:17:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:17:34,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:34,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:34,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:34,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:34,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 08:17:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:17:34,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:34,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:34,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:34,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:17:34,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 08:17:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:34,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:34,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:34,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:34,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:34,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:17:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:17:34,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:34,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:34,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:34,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:17:34,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 08:17:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:34,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:34,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:34,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:34,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:34,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:17:34,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:34,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:34,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:34,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:34,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:34,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:17:35,035 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 08:17:35,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138999058] [2020-10-14 08:17:35,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:17:35,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-14 08:17:35,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26645762] [2020-10-14 08:17:35,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 08:17:35,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:17:35,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 08:17:35,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-14 08:17:35,038 INFO L87 Difference]: Start difference. First operand 1734 states and 2180 transitions. Second operand 14 states. [2020-10-14 08:17:35,220 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-14 08:17:36,310 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 08:17:38,945 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-14 08:17:42,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:17:42,092 INFO L93 Difference]: Finished difference Result 5904 states and 7495 transitions. [2020-10-14 08:17:42,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 08:17:42,093 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 147 [2020-10-14 08:17:42,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:17:42,112 INFO L225 Difference]: With dead ends: 5904 [2020-10-14 08:17:42,113 INFO L226 Difference]: Without dead ends: 4428 [2020-10-14 08:17:42,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=302, Invalid=958, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 08:17:42,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4428 states. [2020-10-14 08:17:42,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4428 to 4093. [2020-10-14 08:17:42,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4093 states. [2020-10-14 08:17:42,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4093 states to 4093 states and 5148 transitions. [2020-10-14 08:17:42,493 INFO L78 Accepts]: Start accepts. Automaton has 4093 states and 5148 transitions. Word has length 147 [2020-10-14 08:17:42,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:17:42,494 INFO L479 AbstractCegarLoop]: Abstraction has 4093 states and 5148 transitions. [2020-10-14 08:17:42,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 08:17:42,494 INFO L276 IsEmpty]: Start isEmpty. Operand 4093 states and 5148 transitions. [2020-10-14 08:17:42,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-14 08:17:42,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:17:42,496 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:17:42,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 08:17:42,497 INFO L427 AbstractCegarLoop]: === Iteration 25 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:17:42,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:17:42,497 INFO L82 PathProgramCache]: Analyzing trace with hash -261787196, now seen corresponding path program 1 times [2020-10-14 08:17:42,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:17:42,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741433477] [2020-10-14 08:17:42,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:17:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:42,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:42,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:42,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:42,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-14 08:17:42,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:17:42,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 413 [2020-10-14 08:17:42,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:42,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:42,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:17:42,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-14 08:17:42,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 08:17:42,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,084 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 08:17:43,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:17:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:43,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:17:43,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:43,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:43,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:17:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 08:17:43,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:43,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:43,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:43,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 08:17:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:43,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:17:43,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:43,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:43,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 08:17:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:17:43,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:17:43,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:43,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:43,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:43,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:43,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:43,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:43,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 08:17:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 08:17:43,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:17:43,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:17:43,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:17:43,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:43,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:17:43,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:17:43,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:17:43,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:17:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:17:43,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:17:43,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:43,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 08:17:43,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:43,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:43,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:43,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:43,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:17:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 08:17:43,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:17:43,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:43,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 08:17:43,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 08:17:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:43,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:17:43,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:43,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:43,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 08:17:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:17:43,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:43,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:43,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:43,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 08:17:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 08:17:43,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 08:17:43,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:17:43,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 08:17:43,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 08:17:43,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-14 08:17:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:43,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:17:43,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:43,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:43,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 08:17:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:17:43,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:43,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:43,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:43,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 08:17:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:17:43,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:43,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:17:43,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:17:43,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 08:17:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:43,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:43,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:17:43,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:17:43,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 08:17:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:17:43,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:17:43,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:43,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:17:43,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:17:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:17:43,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:17:43,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:17:43,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:17:43,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:17:43,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:17:43,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:17:43,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:17:43,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:17:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:17:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:17:43,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:17:43,569 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-14 08:17:43,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741433477] [2020-10-14 08:17:43,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:17:43,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-14 08:17:43,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374220021] [2020-10-14 08:17:43,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 08:17:43,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:17:43,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 08:17:43,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:17:43,571 INFO L87 Difference]: Start difference. First operand 4093 states and 5148 transitions. Second operand 18 states. [2020-10-14 08:17:43,886 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-14 08:17:44,073 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2020-10-14 08:17:45,415 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-14 08:17:48,044 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-14 08:17:48,224 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-14 08:17:48,426 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-14 08:17:48,609 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-14 08:17:48,785 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-14 08:17:48,969 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-14 08:17:51,725 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 140