/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=BIGGEST --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_floodmax.5.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:40:00,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:40:00,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:40:00,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:40:00,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:40:00,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:40:00,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:40:00,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:40:00,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:40:00,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:40:00,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:40:00,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:40:00,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:40:00,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:40:00,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:40:00,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:40:00,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:40:00,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:40:00,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:40:00,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:40:00,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:40:00,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:40:00,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:40:00,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:40:00,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:40:00,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:40:00,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:40:00,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:40:00,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:40:00,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:40:00,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:40:00,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:40:00,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:40:00,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:40:00,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:40:00,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:40:00,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:40:00,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:40:00,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:40:00,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:40:00,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:40:00,182 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 [2020-10-12 18:40:00,205 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:40:00,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:40:00,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:40:00,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:40:00,206 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:40:00,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:40:00,207 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:40:00,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:40:00,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:40:00,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:40:00,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:40:00,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:40:00,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:40:00,208 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:40:00,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:40:00,209 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:40:00,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:40:00,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:40:00,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:40:00,209 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:40:00,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:40:00,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:40:00,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:40:00,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:40:00,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:40:00,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:40:00,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:40:00,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:40:00,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:40:00,211 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:40:00,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:40:00,532 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:40:00,535 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:40:00,537 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:40:00,537 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:40:00,538 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.4.ufo.UNBOUNDED.pals.c [2020-10-12 18:40:00,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab4531ead/2aa9e2a0f4ce4a68bd1c163963b74944/FLAG1bc4a6905 [2020-10-12 18:40:01,220 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:40:01,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.4.ufo.UNBOUNDED.pals.c [2020-10-12 18:40:01,241 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab4531ead/2aa9e2a0f4ce4a68bd1c163963b74944/FLAG1bc4a6905 [2020-10-12 18:40:01,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab4531ead/2aa9e2a0f4ce4a68bd1c163963b74944 [2020-10-12 18:40:01,455 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:40:01,457 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:40:01,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:40:01,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:40:01,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:40:01,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:40:01" (1/1) ... [2020-10-12 18:40:01,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19da8246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:40:01, skipping insertion in model container [2020-10-12 18:40:01,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:40:01" (1/1) ... [2020-10-12 18:40:01,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:40:01,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:40:02,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:40:02,183 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:40:02,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:40:02,376 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:40:02,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:40:02 WrapperNode [2020-10-12 18:40:02,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:40:02,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:40:02,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:40:02,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:40:02,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:40:02" (1/1) ... [2020-10-12 18:40:02,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:40:02" (1/1) ... [2020-10-12 18:40:02,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:40:02" (1/1) ... [2020-10-12 18:40:02,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:40:02" (1/1) ... [2020-10-12 18:40:02,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:40:02" (1/1) ... [2020-10-12 18:40:02,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:40:02" (1/1) ... [2020-10-12 18:40:02,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:40:02" (1/1) ... [2020-10-12 18:40:02,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:40:02,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:40:02,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:40:02,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:40:02,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:40:02" (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 [2020-10-12 18:40:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:40:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:40:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:40:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:40:02,644 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:40:02,644 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:40:02,645 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:40:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-12 18:40:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:40:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:40:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:40:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:40:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:40:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:40:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 18:40:02,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:40:02,648 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:40:02,648 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:40:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:40:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:40:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:40:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:40:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:40:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:40:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:40:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 18:40:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:40:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:40:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:40:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:40:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:40:04,714 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:40:04,715 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:40:04,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:40:04 BoogieIcfgContainer [2020-10-12 18:40:04,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:40:04,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:40:04,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:40:04,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:40:04,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:40:01" (1/3) ... [2020-10-12 18:40:04,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd0b95d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:40:04, skipping insertion in model container [2020-10-12 18:40:04,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:40:02" (2/3) ... [2020-10-12 18:40:04,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd0b95d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:40:04, skipping insertion in model container [2020-10-12 18:40:04,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:40:04" (3/3) ... [2020-10-12 18:40:04,732 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.4.ufo.UNBOUNDED.pals.c [2020-10-12 18:40:04,743 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:40:04,751 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:40:04,764 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:40:04,791 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:40:04,791 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:40:04,792 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:40:04,792 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:40:04,792 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:40:04,792 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:40:04,792 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:40:04,792 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:40:04,826 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states. [2020-10-12 18:40:04,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-12 18:40:04,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:40:04,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:40:04,855 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:40:04,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:40:04,862 INFO L82 PathProgramCache]: Analyzing trace with hash 906450296, now seen corresponding path program 1 times [2020-10-12 18:40:04,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:40:04,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506864168] [2020-10-12 18:40:04,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:40:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:05,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:06,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:06,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-12 18:40:06,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:06,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-10-12 18:40:06,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-12 18:40:06,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:06,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:40:07,426 WARN L193 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-12 18:40:07,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:40:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:07,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:07,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:07,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:40:07,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:07,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 18:40:07,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:07,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:07,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:07,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:40:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:07,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:07,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:07,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 18:40:07,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:07,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-12 18:40:07,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:07,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:07,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:07,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:07,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:07,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 18:40:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:07,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:07,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:07,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:40:07,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:07,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:40:07,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:07,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:07,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:40:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:07,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:07,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 18:40:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:07,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:07,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:07,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:07,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:07,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:40:07,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:07,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:07,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:40:07,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:07,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:40:07,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-12 18:40:07,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:07,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:07,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:07,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:07,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:07,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:40:07,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:07,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:07,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:40:07,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:07,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:40:08,099 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-10-12 18:40:08,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-12 18:40:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:08,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:08,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:08,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:08,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:08,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:40:08,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:08,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:08,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:40:08,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:08,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:40:08,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-12 18:40:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:08,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:08,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:08,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:08,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:08,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:40:08,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:08,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:08,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:40:08,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:08,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:40:08,408 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-10-12 18:40:08,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-12 18:40:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:08,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:08,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:08,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:08,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:08,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:40:08,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:08,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:08,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:40:08,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:08,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:40:08,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-12 18:40:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:08,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:08,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:08,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:08,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:08,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:40:08,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:40:08,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:08,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:40:08,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:40:08,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506864168] [2020-10-12 18:40:08,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:40:08,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 18:40:08,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752264188] [2020-10-12 18:40:08,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 18:40:08,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:40:08,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 18:40:08,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-12 18:40:08,608 INFO L87 Difference]: Start difference. First operand 747 states. Second operand 8 states. [2020-10-12 18:40:11,707 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:12,280 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:12,903 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:13,497 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:14,017 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:14,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:40:14,826 INFO L93 Difference]: Finished difference Result 989 states and 1744 transitions. [2020-10-12 18:40:14,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 18:40:14,828 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 182 [2020-10-12 18:40:14,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:40:14,854 INFO L225 Difference]: With dead ends: 989 [2020-10-12 18:40:14,854 INFO L226 Difference]: Without dead ends: 797 [2020-10-12 18:40:14,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:40:14,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-10-12 18:40:15,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 742. [2020-10-12 18:40:15,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2020-10-12 18:40:15,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1341 transitions. [2020-10-12 18:40:15,048 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1341 transitions. Word has length 182 [2020-10-12 18:40:15,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:40:15,049 INFO L479 AbstractCegarLoop]: Abstraction has 742 states and 1341 transitions. [2020-10-12 18:40:15,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 18:40:15,049 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1341 transitions. [2020-10-12 18:40:15,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-12 18:40:15,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:40:15,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:40:15,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:40:15,057 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:40:15,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:40:15,057 INFO L82 PathProgramCache]: Analyzing trace with hash 553361914, now seen corresponding path program 1 times [2020-10-12 18:40:15,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:40:15,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066593900] [2020-10-12 18:40:15,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:40:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:15,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:17,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:17,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-12 18:40:17,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:17,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2456 [2020-10-12 18:40:17,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:40:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-12 18:40:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:40:17,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:40:18,455 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-12 18:40:18,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:40:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:18,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:18,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:18,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:40:18,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:18,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:40:18,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:18,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:18,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:18,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:18,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:18,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:40:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:18,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:19,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:19,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 18:40:19,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:19,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 638 [2020-10-12 18:40:19,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:19,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:19,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:19,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-12 18:40:19,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:40:19,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-12 18:40:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:19,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:19,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:19,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:40:19,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:19,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:40:19,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:19,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:19,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:40:19,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:40:19,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:19,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-12 18:40:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:19,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:19,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:19,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:19,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:19,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:40:19,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:19,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:19,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:40:19,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:19,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:19,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-12 18:40:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:19,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:19,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:19,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:19,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:19,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:40:19,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:19,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:40:19,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:19,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:19,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-12 18:40:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:19,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:19,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:19,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:19,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:19,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:40:19,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:40:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:19,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:19,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-12 18:40:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:19,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:19,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:19,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:19,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:19,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:40:19,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:19,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:19,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:40:19,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:19,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:19,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-12 18:40:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:19,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:19,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:19,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:19,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:19,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:40:19,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:19,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:19,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:40:19,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:19,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:40:19,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-12 18:40:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:19,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:19,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:19,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:19,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:19,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:40:19,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:19,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:19,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:40:19,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:19,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:19,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:40:19,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066593900] [2020-10-12 18:40:19,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:40:19,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:40:19,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738774304] [2020-10-12 18:40:19,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:40:19,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:40:19,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:40:19,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:40:19,760 INFO L87 Difference]: Start difference. First operand 742 states and 1341 transitions. Second operand 14 states. [2020-10-12 18:40:27,874 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-12 18:40:28,582 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 362 [2020-10-12 18:40:29,399 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:40:30,104 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-12 18:40:31,270 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:31,912 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:32,669 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:33,436 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:34,152 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:35,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:40:35,031 INFO L93 Difference]: Finished difference Result 987 states and 1736 transitions. [2020-10-12 18:40:35,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 18:40:35,032 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 182 [2020-10-12 18:40:35,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:40:35,039 INFO L225 Difference]: With dead ends: 987 [2020-10-12 18:40:35,039 INFO L226 Difference]: Without dead ends: 797 [2020-10-12 18:40:35,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-12 18:40:35,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-10-12 18:40:35,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 742. [2020-10-12 18:40:35,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2020-10-12 18:40:35,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1281 transitions. [2020-10-12 18:40:35,163 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1281 transitions. Word has length 182 [2020-10-12 18:40:35,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:40:35,164 INFO L479 AbstractCegarLoop]: Abstraction has 742 states and 1281 transitions. [2020-10-12 18:40:35,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:40:35,164 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1281 transitions. [2020-10-12 18:40:35,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-12 18:40:35,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:40:35,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:40:35,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:40:35,171 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:40:35,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:40:35,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1577718157, now seen corresponding path program 1 times [2020-10-12 18:40:35,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:40:35,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265912809] [2020-10-12 18:40:35,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:40:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:35,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:35,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:36,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:37,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:40,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:40,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-12 18:40:40,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:40:40,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-12 18:40:40,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:40,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 18:40:40,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-10-12 18:40:40,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 18:40:40,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:40:41,191 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-12 18:40:41,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:40:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:41,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:41,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:41,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:40:41,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:41,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 18:40:41,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:41,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:40:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:40:41,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:41,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:40:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:41,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:42,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:42,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 18:40:42,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:42,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 966 [2020-10-12 18:40:42,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:42,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:40:42,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:42,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-12 18:40:42,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:40:42,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-12 18:40:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:42,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:42,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:42,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:40:42,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:42,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:40:42,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:40:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:40:42,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:40:42,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:42,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 18:40:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:42,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:42,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:42,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:42,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:42,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:40:42,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:42,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:42,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:40:42,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:40:42,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:42,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-12 18:40:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:42,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:42,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:42,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:42,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:42,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:40:42,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:42,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:42,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:40:42,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:40:42,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:42,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-12 18:40:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:42,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:42,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:42,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:42,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:42,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:40:42,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:40:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:40:42,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:42,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-12 18:40:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:42,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:42,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:42,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:42,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:42,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:40:42,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:42,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:42,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:40:42,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:40:42,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:42,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-12 18:40:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:42,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:43,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:43,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:43,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:43,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:40:43,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:43,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:40:43,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:40:43,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:40:43,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:43,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-12 18:40:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:40:43,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:40:43,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:40:43,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:40:43,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:40:43,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:40:43,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:40:43,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:40:43,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:40:43,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:40:43,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:40:43,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:40:43,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265912809] [2020-10-12 18:40:43,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:40:43,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-12 18:40:43,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375731975] [2020-10-12 18:40:43,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 18:40:43,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:40:43,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 18:40:43,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:40:43,244 INFO L87 Difference]: Start difference. First operand 742 states and 1281 transitions. Second operand 19 states. [2020-10-12 18:40:43,907 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-12 18:40:50,077 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-12 18:40:50,749 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-12 18:40:51,391 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-12 18:40:52,053 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2020-10-12 18:40:52,458 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-12 18:40:52,924 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:40:53,169 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:53,680 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:40:53,928 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:40:54,145 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:40:54,816 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:40:55,077 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:40:55,292 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:40:55,527 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:40:55,793 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:56,535 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:40:56,804 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:40:57,024 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-12 18:40:57,275 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:40:57,516 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:40:57,717 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:40:58,014 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:40:58,990 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:40:59,276 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-12 18:40:59,567 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:40:59,787 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:41:00,018 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:00,227 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:41:00,466 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:41:00,713 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:41:02,184 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-12 18:41:02,379 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:41:03,010 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 362 [2020-10-12 18:41:03,221 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:41:03,862 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2020-10-12 18:41:04,082 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:41:04,779 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2020-10-12 18:41:05,369 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:41:05,569 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:41:07,378 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:41:07,625 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:41:07,881 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:41:08,185 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:41:08,433 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 18:41:08,674 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:08,920 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:41:09,176 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:41:09,439 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:41:09,704 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:41:11,123 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:41:11,407 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-12 18:41:11,689 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:41:11,988 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 18:41:12,242 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:41:12,535 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:41:12,738 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:41:12,996 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-12 18:41:13,256 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:41:13,532 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:41:14,934 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:41:15,206 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-12 18:41:15,484 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:41:15,776 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 18:41:16,022 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:41:16,292 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:41:16,571 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-12 18:41:16,835 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:41:17,103 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:41:18,467 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:41:18,737 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-12 18:41:19,023 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:41:19,318 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 18:41:19,549 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:41:19,876 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:41:20,135 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:41:20,413 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:41:21,806 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:41:22,079 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-12 18:41:22,368 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:41:22,716 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 18:41:22,974 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:41:23,329 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:41:23,601 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:41:25,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:41:25,230 INFO L93 Difference]: Finished difference Result 3363 states and 5525 transitions. [2020-10-12 18:41:25,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-10-12 18:41:25,231 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 241 [2020-10-12 18:41:25,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:41:25,250 INFO L225 Difference]: With dead ends: 3363 [2020-10-12 18:41:25,250 INFO L226 Difference]: Without dead ends: 3179 [2020-10-12 18:41:25,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 20 SyntacticMatches, 5 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4053 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=2091, Invalid=9251, Unknown=0, NotChecked=0, Total=11342 [2020-10-12 18:41:25,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2020-10-12 18:41:25,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 2554. [2020-10-12 18:41:25,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2554 states. [2020-10-12 18:41:25,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 4263 transitions. [2020-10-12 18:41:25,551 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 4263 transitions. Word has length 241 [2020-10-12 18:41:25,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:41:25,552 INFO L479 AbstractCegarLoop]: Abstraction has 2554 states and 4263 transitions. [2020-10-12 18:41:25,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 18:41:25,553 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 4263 transitions. [2020-10-12 18:41:25,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-12 18:41:25,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:41:25,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:41:25,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:41:25,560 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:41:25,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:41:25,561 INFO L82 PathProgramCache]: Analyzing trace with hash -54351672, now seen corresponding path program 1 times [2020-10-12 18:41:25,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:41:25,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185185107] [2020-10-12 18:41:25,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:41:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:25,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:26,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:26,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:27,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:28,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:30,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:30,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-12 18:41:30,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:41:30,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-12 18:41:30,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:30,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:41:30,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-10-12 18:41:30,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 18:41:30,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:31,419 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-12 18:41:31,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:41:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:31,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:31,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:31,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:41:31,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:31,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:41:31,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:31,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:41:31,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:31,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:41:31,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:31,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:41:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:31,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:31,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:31,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 18:41:31,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:31,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 357 [2020-10-12 18:41:31,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:31,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:41:31,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:31,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-12 18:41:31,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:31,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-12 18:41:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:31,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:31,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:31,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:41:31,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:31,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:41:31,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:31,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:31,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:31,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:41:31,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:41:31,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 18:41:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:31,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:32,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:32,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:32,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:32,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:41:32,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:32,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:41:32,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:41:32,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:41:32,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:41:32,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-12 18:41:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:32,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:32,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:32,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:32,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:32,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:41:32,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:32,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:32,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:32,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:41:32,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:41:32,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-12 18:41:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:32,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:32,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:32,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:32,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:32,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:41:32,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:32,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:32,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:32,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:41:32,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:41:32,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-12 18:41:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:32,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:32,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:32,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:32,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:32,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:41:32,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:32,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:32,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:32,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:41:32,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:41:32,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-12 18:41:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:32,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:32,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:32,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:41:32,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:32,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:41:32,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:32,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:32,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:41:32,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:41:32,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:41:32,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-12 18:41:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:32,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:32,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:41:32,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:41:32,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:41:32,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:41:32,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:41:32,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:41:32,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:41:32,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:41:32,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:41:32,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:41:32,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185185107] [2020-10-12 18:41:32,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:41:32,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:41:32,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061006731] [2020-10-12 18:41:32,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:41:32,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:41:32,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:41:32,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:41:32,558 INFO L87 Difference]: Start difference. First operand 2554 states and 4263 transitions. Second operand 12 states. [2020-10-12 18:41:33,517 WARN L193 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:41:40,121 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-12 18:41:40,530 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:41:41,046 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:41,366 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:41:41,558 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:42,077 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:42,389 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:41:42,594 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:41:43,425 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:43,774 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:41:43,999 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:41:44,903 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:45,300 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:41:45,546 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:41:46,646 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:41:46,880 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:41:48,178 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:41:48,819 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-12 18:41:49,871 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:41:50,165 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:41:50,398 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:41:50,714 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:41:51,798 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:52,074 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:41:52,426 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:41:53,226 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:53,499 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:41:54,496 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:54,768 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:41:55,712 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:41:55,983 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:41:57,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:41:57,062 INFO L93 Difference]: Finished difference Result 9843 states and 16082 transitions. [2020-10-12 18:41:57,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-12 18:41:57,063 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 242 [2020-10-12 18:41:57,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:41:57,099 INFO L225 Difference]: With dead ends: 9843 [2020-10-12 18:41:57,099 INFO L226 Difference]: Without dead ends: 7847 [2020-10-12 18:41:57,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=426, Invalid=1554, Unknown=0, NotChecked=0, Total=1980 [2020-10-12 18:41:57,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7847 states. [2020-10-12 18:41:57,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7847 to 6123. [2020-10-12 18:41:57,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6123 states. [2020-10-12 18:41:57,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6123 states to 6123 states and 10113 transitions. [2020-10-12 18:41:57,548 INFO L78 Accepts]: Start accepts. Automaton has 6123 states and 10113 transitions. Word has length 242 [2020-10-12 18:41:57,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:41:57,549 INFO L479 AbstractCegarLoop]: Abstraction has 6123 states and 10113 transitions. [2020-10-12 18:41:57,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:41:57,549 INFO L276 IsEmpty]: Start isEmpty. Operand 6123 states and 10113 transitions. [2020-10-12 18:41:57,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-12 18:41:57,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:41:57,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:41:57,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:41:57,555 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:41:57,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:41:57,556 INFO L82 PathProgramCache]: Analyzing trace with hash -126315830, now seen corresponding path program 1 times [2020-10-12 18:41:57,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:41:57,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1057899675] [2020-10-12 18:41:57,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:41:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:41:57,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:57,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:58,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:58,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:41:59,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:02,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:02,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-10-12 18:42:02,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:42:02,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-12 18:42:02,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:02,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:42:02,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-10-12 18:42:02,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 18:42:02,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:03,623 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-12 18:42:03,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:42:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:03,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:03,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:03,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:42:03,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:03,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:42:03,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:03,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:42:03,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:03,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:42:03,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:42:03,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:42:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:03,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:04,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:04,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 18:42:04,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:04,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-10-12 18:42:04,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:04,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:42:04,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:04,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-12 18:42:04,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:04,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-12 18:42:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:04,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:04,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:04,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:42:04,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:04,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:42:04,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:04,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:04,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:04,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:42:04,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:04,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 18:42:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:04,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:04,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:04,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:42:04,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:04,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:42:04,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:42:04,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:04,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-12 18:42:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:04,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:04,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:04,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:42:04,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:04,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:42:04,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:04,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:42:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:42:04,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:42:04,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:04,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-12 18:42:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:04,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:04,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:04,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:42:04,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:04,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:42:04,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:04,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:04,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:04,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:42:04,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:04,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-12 18:42:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:04,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:04,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:04,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:42:04,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:04,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:42:04,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:04,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:04,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:04,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:42:04,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:04,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-12 18:42:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:04,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:04,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:04,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:42:04,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:04,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:42:04,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:04,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:04,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:04,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:42:04,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:04,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-12 18:42:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:04,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:04,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:04,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:42:04,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:04,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:42:04,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:04,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:04,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:42:04,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:42:04,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:04,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:42:04,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1057899675] [2020-10-12 18:42:04,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:42:04,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:42:04,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786651921] [2020-10-12 18:42:04,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:42:04,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:42:04,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:42:04,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:42:04,650 INFO L87 Difference]: Start difference. First operand 6123 states and 10113 transitions. Second operand 12 states. [2020-10-12 18:42:05,314 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:42:12,421 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-12 18:42:12,823 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:13,423 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:42:13,991 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:14,237 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:14,431 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:15,028 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:15,235 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:42:15,437 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:16,367 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:16,614 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:42:16,830 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:17,824 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:42:18,043 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:19,374 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-12 18:42:19,972 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:42:20,891 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:21,184 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:21,431 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:21,649 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:42:22,385 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:42:22,857 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:42:23,139 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:42:23,378 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-12 18:42:24,456 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:24,712 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:24,943 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:25,750 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:25,979 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:26,780 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:27,034 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:28,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:42:28,047 INFO L93 Difference]: Finished difference Result 28372 states and 46104 transitions. [2020-10-12 18:42:28,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-12 18:42:28,049 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 243 [2020-10-12 18:42:28,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:42:28,135 INFO L225 Difference]: With dead ends: 28372 [2020-10-12 18:42:28,135 INFO L226 Difference]: Without dead ends: 22807 [2020-10-12 18:42:28,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=426, Invalid=1554, Unknown=0, NotChecked=0, Total=1980 [2020-10-12 18:42:28,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22807 states. [2020-10-12 18:42:30,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22807 to 17539. [2020-10-12 18:42:30,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17539 states. [2020-10-12 18:42:30,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17539 states to 17539 states and 28776 transitions. [2020-10-12 18:42:30,047 INFO L78 Accepts]: Start accepts. Automaton has 17539 states and 28776 transitions. Word has length 243 [2020-10-12 18:42:30,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:42:30,048 INFO L479 AbstractCegarLoop]: Abstraction has 17539 states and 28776 transitions. [2020-10-12 18:42:30,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:42:30,048 INFO L276 IsEmpty]: Start isEmpty. Operand 17539 states and 28776 transitions. [2020-10-12 18:42:30,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-12 18:42:30,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:42:30,057 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:42:30,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:42:30,057 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:42:30,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:42:30,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1886077631, now seen corresponding path program 1 times [2020-10-12 18:42:30,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:42:30,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1405772727] [2020-10-12 18:42:30,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:42:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:30,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:30,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:30,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:31,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:31,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:35,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:35,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-12 18:42:35,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:42:35,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 18:42:35,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:35,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:42:35,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-10-12 18:42:35,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 18:42:35,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:35,849 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-12 18:42:35,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:42:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:35,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:35,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:35,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:42:35,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:35,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:42:35,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:35,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:42:35,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:35,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:42:35,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:35,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:42:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:35,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:36,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:36,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 18:42:36,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:36,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-12 18:42:36,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:36,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:42:36,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:36,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-12 18:42:36,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:36,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-12 18:42:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:36,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:36,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:36,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:42:36,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:36,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:42:36,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:36,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:36,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:36,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:42:36,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:36,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 18:42:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:36,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:36,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:36,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:42:36,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:36,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:42:36,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:36,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:36,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:36,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:42:36,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:36,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-12 18:42:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:36,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:36,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:36,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:42:36,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:36,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:42:36,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:36,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:36,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:36,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:42:36,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:36,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-12 18:42:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:36,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:36,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:36,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:42:36,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:36,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:42:36,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:36,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:42:36,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:42:36,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:42:36,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:36,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-12 18:42:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:36,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:36,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:36,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:42:36,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:36,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:42:36,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:36,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:42:36,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:36,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-12 18:42:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:36,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:36,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:36,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:42:36,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:36,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:42:36,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:36,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:36,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:42:36,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:42:36,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:36,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-12 18:42:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:42:36,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:42:36,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:42:36,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:42:36,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:42:36,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:42:36,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:42:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:42:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:42:36,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:42:36,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:42:36,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:42:36,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1405772727] [2020-10-12 18:42:36,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:42:36,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:42:36,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667305334] [2020-10-12 18:42:36,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:42:36,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:42:36,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:42:36,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:42:36,507 INFO L87 Difference]: Start difference. First operand 17539 states and 28776 transitions. Second operand 12 states. [2020-10-12 18:42:37,157 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-12 18:42:43,891 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-12 18:42:44,286 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:42:44,815 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:42:45,414 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-12 18:42:46,064 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:42:46,270 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:46,468 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:47,141 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:42:47,361 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:47,570 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:42:48,593 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:48,823 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:42:50,173 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:42:50,775 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-12 18:42:51,641 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:52,116 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:52,332 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:52,649 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:42:52,981 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:42:53,996 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:54,275 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:54,727 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-12 18:42:55,092 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-12 18:42:56,031 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:42:56,318 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:42:56,749 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-12 18:42:57,747 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:58,024 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:58,315 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:42:59,277 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:42:59,554 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:43:01,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:43:01,734 INFO L93 Difference]: Finished difference Result 95027 states and 153832 transitions. [2020-10-12 18:43:01,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-12 18:43:01,735 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 244 [2020-10-12 18:43:01,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:43:02,003 INFO L225 Difference]: With dead ends: 95027 [2020-10-12 18:43:02,004 INFO L226 Difference]: Without dead ends: 78046 [2020-10-12 18:43:02,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2020-10-12 18:43:02,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78046 states. [2020-10-12 18:43:05,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78046 to 59706. [2020-10-12 18:43:05,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59706 states. [2020-10-12 18:43:05,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59706 states to 59706 states and 97551 transitions. [2020-10-12 18:43:05,636 INFO L78 Accepts]: Start accepts. Automaton has 59706 states and 97551 transitions. Word has length 244 [2020-10-12 18:43:05,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:43:05,637 INFO L479 AbstractCegarLoop]: Abstraction has 59706 states and 97551 transitions. [2020-10-12 18:43:05,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:43:05,637 INFO L276 IsEmpty]: Start isEmpty. Operand 59706 states and 97551 transitions. [2020-10-12 18:43:05,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-12 18:43:05,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:43:05,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:43:05,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:43:05,647 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:43:05,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:43:05,648 INFO L82 PathProgramCache]: Analyzing trace with hash -205919455, now seen corresponding path program 1 times [2020-10-12 18:43:05,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:43:05,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [987356498] [2020-10-12 18:43:05,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:43:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:05,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:05,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:06,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:06,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:07,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:10,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:10,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-12 18:43:10,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:43:10,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-12 18:43:10,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:10,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:43:10,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-10-12 18:43:10,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 18:43:10,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:11,418 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-12 18:43:11,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:43:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:11,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:11,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:11,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:43:11,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:11,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:43:11,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:11,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:11,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:11,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:11,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:11,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:43:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:11,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:11,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:11,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 18:43:11,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:11,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-12 18:43:11,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:11,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:43:11,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:11,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-12 18:43:11,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:11,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-12 18:43:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:11,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:11,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:11,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:43:11,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:11,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:43:11,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:11,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:43:11,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:11,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-12 18:43:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:11,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:11,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:11,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:43:11,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:11,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:43:11,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:11,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:11,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:11,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:43:11,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:11,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-12 18:43:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:11,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:11,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:11,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:43:11,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:11,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:43:11,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:11,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:11,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:11,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:43:11,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:11,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-12 18:43:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:11,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:11,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:11,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:43:11,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:11,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:43:11,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:11,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:11,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:11,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:43:11,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:11,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-12 18:43:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:11,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:11,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:11,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:43:11,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:11,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:43:11,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:11,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:43:11,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:43:11,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:43:11,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:12,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-12 18:43:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:12,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:12,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:12,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:43:12,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:12,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:43:12,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:12,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:43:12,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:12,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-12 18:43:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:12,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:12,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:12,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:43:12,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:12,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:43:12,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:12,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:12,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:43:12,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:43:12,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:12,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:43:12,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [987356498] [2020-10-12 18:43:12,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:43:12,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:43:12,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411675948] [2020-10-12 18:43:12,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:43:12,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:43:12,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:43:12,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:43:12,187 INFO L87 Difference]: Start difference. First operand 59706 states and 97551 transitions. Second operand 12 states. [2020-10-12 18:43:12,892 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:43:20,491 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:43:20,912 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:21,501 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:22,157 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:22,854 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:43:23,481 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:23,726 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:43:23,941 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-12 18:43:24,592 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:43:24,820 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:26,230 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-12 18:43:27,048 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-12 18:43:27,899 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:43:28,499 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:28,728 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:43:29,035 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:29,281 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:43:30,543 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:30,862 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:43:31,293 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:31,619 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-12 18:43:32,911 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:33,226 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:43:33,647 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:34,026 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-12 18:43:35,573 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 18:43:36,104 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 179 [2020-10-12 18:43:36,717 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 178 [2020-10-12 18:43:37,855 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-12 18:43:38,145 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-12 18:43:38,491 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-12 18:43:44,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:43:44,667 INFO L93 Difference]: Finished difference Result 371538 states and 600058 transitions. [2020-10-12 18:43:44,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-12 18:43:44,667 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 245 [2020-10-12 18:43:44,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted.