/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-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 19:41:00,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 19:41:00,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 19:41:00,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 19:41:00,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 19:41:00,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 19:41:00,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 19:41:00,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 19:41:00,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 19:41:00,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 19:41:00,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 19:41:00,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 19:41:00,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 19:41:00,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 19:41:00,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 19:41:00,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 19:41:00,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 19:41:00,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 19:41:00,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 19:41:00,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 19:41:00,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 19:41:00,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 19:41:00,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 19:41:00,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 19:41:00,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 19:41:00,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 19:41:00,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 19:41:00,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 19:41:00,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 19:41:00,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 19:41:00,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 19:41:00,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 19:41:00,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 19:41:00,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 19:41:00,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 19:41:00,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 19:41:00,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 19:41:00,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 19:41:00,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 19:41:00,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 19:41:00,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 19:41:00,278 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 19:41:00,313 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 19:41:00,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 19:41:00,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 19:41:00,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 19:41:00,316 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 19:41:00,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 19:41:00,316 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 19:41:00,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 19:41:00,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 19:41:00,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 19:41:00,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 19:41:00,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 19:41:00,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 19:41:00,319 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 19:41:00,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 19:41:00,319 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 19:41:00,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 19:41:00,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 19:41:00,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 19:41:00,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 19:41:00,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 19:41:00,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:41:00,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 19:41:00,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 19:41:00,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 19:41:00,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 19:41:00,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 19:41:00,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 19:41:00,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 19:41:00,327 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 19:41:00,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 19:41:00,615 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 19:41:00,619 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 19:41:00,620 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 19:41:00,621 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 19:41:00,621 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2020-10-12 19:41:00,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0cfe34eec/dd28bafd06cb4ecd822faa5d64bb9292/FLAG92465daca [2020-10-12 19:41:01,390 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 19:41:01,391 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2020-10-12 19:41:01,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0cfe34eec/dd28bafd06cb4ecd822faa5d64bb9292/FLAG92465daca [2020-10-12 19:41:01,472 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0cfe34eec/dd28bafd06cb4ecd822faa5d64bb9292 [2020-10-12 19:41:01,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 19:41:01,486 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 19:41:01,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 19:41:01,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 19:41:01,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 19:41:01,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:41:01" (1/1) ... [2020-10-12 19:41:01,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@612194b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:01, skipping insertion in model container [2020-10-12 19:41:01,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:41:01" (1/1) ... [2020-10-12 19:41:01,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 19:41:01,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 19:41:02,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:41:02,990 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 19:41:03,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:41:03,702 INFO L208 MainTranslator]: Completed translation [2020-10-12 19:41:03,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:03 WrapperNode [2020-10-12 19:41:03,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 19:41:03,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 19:41:03,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 19:41:03,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 19:41:03,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:03" (1/1) ... [2020-10-12 19:41:03,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:03" (1/1) ... [2020-10-12 19:41:03,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:03" (1/1) ... [2020-10-12 19:41:03,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:03" (1/1) ... [2020-10-12 19:41:03,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:03" (1/1) ... [2020-10-12 19:41:03,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:03" (1/1) ... [2020-10-12 19:41:03,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:03" (1/1) ... [2020-10-12 19:41:03,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 19:41:03,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 19:41:03,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 19:41:03,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 19:41:03,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:03" (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 19:41:04,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 19:41:04,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 19:41:04,013 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 19:41:04,013 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 19:41:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 19:41:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 19:41:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 19:41:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 19:41:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 19:41:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 19:41:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 19:41:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 19:41:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 19:41:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 19:41:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 19:41:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 19:41:04,016 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 19:41:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-12 19:41:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 19:41:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 19:41:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 19:41:04,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 19:41:04,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 19:41:07,440 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 19:41:07,440 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 19:41:07,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:41:07 BoogieIcfgContainer [2020-10-12 19:41:07,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 19:41:07,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 19:41:07,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 19:41:07,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 19:41:07,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:41:01" (1/3) ... [2020-10-12 19:41:07,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c9b360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:41:07, skipping insertion in model container [2020-10-12 19:41:07,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:41:03" (2/3) ... [2020-10-12 19:41:07,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c9b360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:41:07, skipping insertion in model container [2020-10-12 19:41:07,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:41:07" (3/3) ... [2020-10-12 19:41:07,460 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2020-10-12 19:41:07,470 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 19:41:07,479 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-10-12 19:41:07,492 INFO L251 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-10-12 19:41:07,521 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 19:41:07,521 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 19:41:07,521 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 19:41:07,521 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 19:41:07,522 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 19:41:07,522 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 19:41:07,522 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 19:41:07,522 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 19:41:07,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states. [2020-10-12 19:41:07,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-12 19:41:07,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:41:07,589 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] [2020-10-12 19:41:07,590 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:41:07,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:41:07,597 INFO L82 PathProgramCache]: Analyzing trace with hash 817114819, now seen corresponding path program 1 times [2020-10-12 19:41:07,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:41:07,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299405582] [2020-10-12 19:41:07,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:41:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:08,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:08,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:08,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:08,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:08,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:09,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:10,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:11,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:11,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:13,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:13,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 19:41:13,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:41:13,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-12 19:41:13,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:13,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:41:13,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 19:41:13,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 19:41:13,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 19:41:14,535 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:41:14,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:41:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:14,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:14,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:14,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:41:14,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:41:14,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 19:41:14,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:14,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:41:14,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:41:14,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:41:14,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:14,700 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 19:41:14,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299405582] [2020-10-12 19:41:14,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:41:14,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:41:14,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521806412] [2020-10-12 19:41:14,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:41:14,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:41:14,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:41:14,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:41:14,742 INFO L87 Difference]: Start difference. First operand 1136 states. Second operand 7 states. [2020-10-12 19:41:16,014 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 491 [2020-10-12 19:41:26,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:41:26,791 INFO L93 Difference]: Finished difference Result 3568 states and 6006 transitions. [2020-10-12 19:41:26,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:41:26,794 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-12 19:41:26,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:41:26,844 INFO L225 Difference]: With dead ends: 3568 [2020-10-12 19:41:26,845 INFO L226 Difference]: Without dead ends: 2831 [2020-10-12 19:41:26,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:41:26,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2020-10-12 19:41:27,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 1845. [2020-10-12 19:41:27,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1845 states. [2020-10-12 19:41:27,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1845 states to 1845 states and 2527 transitions. [2020-10-12 19:41:27,146 INFO L78 Accepts]: Start accepts. Automaton has 1845 states and 2527 transitions. Word has length 90 [2020-10-12 19:41:27,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:41:27,147 INFO L479 AbstractCegarLoop]: Abstraction has 1845 states and 2527 transitions. [2020-10-12 19:41:27,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:41:27,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1845 states and 2527 transitions. [2020-10-12 19:41:27,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 19:41:27,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:41:27,160 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] [2020-10-12 19:41:27,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 19:41:27,161 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:41:27,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:41:27,162 INFO L82 PathProgramCache]: Analyzing trace with hash -89586992, now seen corresponding path program 1 times [2020-10-12 19:41:27,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:41:27,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215095697] [2020-10-12 19:41:27,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:41:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:27,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:27,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:27,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:27,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:27,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:28,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:28,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:29,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:32,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:32,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 19:41:32,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:41:32,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 19:41:32,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:32,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:41:32,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:41:32,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 19:41:32,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-12 19:41:33,565 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:41:33,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:41:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:33,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:33,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:33,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:41:33,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:41:33,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 19:41:33,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:33,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:41:33,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:41:33,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:41:33,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:33,649 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 19:41:33,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215095697] [2020-10-12 19:41:33,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:41:33,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:41:33,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22396804] [2020-10-12 19:41:33,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:41:33,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:41:33,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:41:33,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:41:33,653 INFO L87 Difference]: Start difference. First operand 1845 states and 2527 transitions. Second operand 7 states. [2020-10-12 19:41:34,814 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 491 [2020-10-12 19:41:42,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:41:42,800 INFO L93 Difference]: Finished difference Result 5864 states and 8308 transitions. [2020-10-12 19:41:42,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:41:42,806 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-12 19:41:42,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:41:42,840 INFO L225 Difference]: With dead ends: 5864 [2020-10-12 19:41:42,840 INFO L226 Difference]: Without dead ends: 4970 [2020-10-12 19:41:42,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:41:42,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4970 states. [2020-10-12 19:41:43,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4970 to 2831. [2020-10-12 19:41:43,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2831 states. [2020-10-12 19:41:43,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 4029 transitions. [2020-10-12 19:41:43,016 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 4029 transitions. Word has length 91 [2020-10-12 19:41:43,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:41:43,018 INFO L479 AbstractCegarLoop]: Abstraction has 2831 states and 4029 transitions. [2020-10-12 19:41:43,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:41:43,018 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 4029 transitions. [2020-10-12 19:41:43,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-12 19:41:43,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:41:43,028 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] [2020-10-12 19:41:43,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 19:41:43,028 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:41:43,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:41:43,029 INFO L82 PathProgramCache]: Analyzing trace with hash 319760600, now seen corresponding path program 1 times [2020-10-12 19:41:43,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:41:43,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194534421] [2020-10-12 19:41:43,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:41:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:43,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:43,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:43,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:43,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:43,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:44,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:44,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:44,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:44,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:44,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:48,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:48,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 19:41:48,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:41:48,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-12 19:41:48,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:48,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:41:48,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:41:48,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-12 19:41:48,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:49,538 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:41:49,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:41:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:49,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:49,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:41:49,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:41:49,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:41:49,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 19:41:49,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:41:49,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:41:49,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:41:49,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:41:49,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:41:49,619 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 19:41:49,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194534421] [2020-10-12 19:41:49,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:41:49,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:41:49,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397105464] [2020-10-12 19:41:49,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:41:49,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:41:49,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:41:49,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:41:49,622 INFO L87 Difference]: Start difference. First operand 2831 states and 4029 transitions. Second operand 7 states. [2020-10-12 19:41:50,773 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 491 [2020-10-12 19:41:57,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:41:57,428 INFO L93 Difference]: Finished difference Result 11120 states and 16177 transitions. [2020-10-12 19:41:57,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:41:57,429 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-12 19:41:57,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:41:57,472 INFO L225 Difference]: With dead ends: 11120 [2020-10-12 19:41:57,473 INFO L226 Difference]: Without dead ends: 9313 [2020-10-12 19:41:57,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:41:57,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9313 states. [2020-10-12 19:41:57,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9313 to 6578. [2020-10-12 19:41:57,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6578 states. [2020-10-12 19:41:57,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6578 states to 6578 states and 9621 transitions. [2020-10-12 19:41:57,847 INFO L78 Accepts]: Start accepts. Automaton has 6578 states and 9621 transitions. Word has length 91 [2020-10-12 19:41:57,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:41:57,852 INFO L479 AbstractCegarLoop]: Abstraction has 6578 states and 9621 transitions. [2020-10-12 19:41:57,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:41:57,852 INFO L276 IsEmpty]: Start isEmpty. Operand 6578 states and 9621 transitions. [2020-10-12 19:41:57,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-12 19:41:57,870 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:41:57,870 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] [2020-10-12 19:41:57,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 19:41:57,870 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:41:57,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:41:57,871 INFO L82 PathProgramCache]: Analyzing trace with hash -156181339, now seen corresponding path program 1 times [2020-10-12 19:41:57,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:41:57,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948048253] [2020-10-12 19:41:57,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:41:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:41:57,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:58,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:58,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:58,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:58,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:59,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:41:59,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:02,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:02,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 19:42:02,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 19:42:02,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 19:42:02,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:02,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:42:02,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-12 19:42:02,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 19:42:02,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:42:04,164 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:42:04,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:42:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:04,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:04,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:04,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:42:04,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:42:04,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 19:42:04,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:04,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:42:04,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:42:04,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:42:04,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:42:04,247 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 19:42:04,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1948048253] [2020-10-12 19:42:04,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:42:04,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 19:42:04,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115612010] [2020-10-12 19:42:04,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 19:42:04,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:42:04,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 19:42:04,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 19:42:04,251 INFO L87 Difference]: Start difference. First operand 6578 states and 9621 transitions. Second operand 7 states. [2020-10-12 19:42:05,400 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 491 [2020-10-12 19:42:12,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:42:12,555 INFO L93 Difference]: Finished difference Result 32049 states and 47167 transitions. [2020-10-12 19:42:12,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 19:42:12,555 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-10-12 19:42:12,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:42:12,637 INFO L225 Difference]: With dead ends: 32049 [2020-10-12 19:42:12,637 INFO L226 Difference]: Without dead ends: 25750 [2020-10-12 19:42:12,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:42:12,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25750 states. [2020-10-12 19:42:13,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25750 to 16527. [2020-10-12 19:42:13,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16527 states. [2020-10-12 19:42:13,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16527 states to 16527 states and 24214 transitions. [2020-10-12 19:42:13,450 INFO L78 Accepts]: Start accepts. Automaton has 16527 states and 24214 transitions. Word has length 92 [2020-10-12 19:42:13,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:42:13,451 INFO L479 AbstractCegarLoop]: Abstraction has 16527 states and 24214 transitions. [2020-10-12 19:42:13,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 19:42:13,452 INFO L276 IsEmpty]: Start isEmpty. Operand 16527 states and 24214 transitions. [2020-10-12 19:42:13,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-12 19:42:13,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:42:13,484 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] [2020-10-12 19:42:13,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:42:13,486 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:42:13,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:42:13,486 INFO L82 PathProgramCache]: Analyzing trace with hash -558520554, now seen corresponding path program 1 times [2020-10-12 19:42:13,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:42:13,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1465169783] [2020-10-12 19:42:13,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:42:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:13,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:13,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:13,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:13,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:14,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:14,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:15,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:16,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:18,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:18,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 19:42:18,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 19:42:18,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-12 19:42:18,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:18,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 19:42:18,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:42:18,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 19:42:18,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:19,857 WARN L193 SmtUtils]: Spent 995.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:42:19,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:42:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:19,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:19,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:19,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:42:19,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:42:19,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 19:42:19,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:19,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:42:19,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:42:19,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:42:19,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:19,957 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 19:42:19,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1465169783] [2020-10-12 19:42:19,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:42:19,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:42:19,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676014790] [2020-10-12 19:42:19,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:42:19,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:42:19,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:42:19,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:42:19,960 INFO L87 Difference]: Start difference. First operand 16527 states and 24214 transitions. Second operand 10 states. [2020-10-12 19:42:21,618 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 514 [2020-10-12 19:42:32,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:42:32,558 INFO L93 Difference]: Finished difference Result 33847 states and 49872 transitions. [2020-10-12 19:42:32,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 19:42:32,558 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 93 [2020-10-12 19:42:32,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:42:32,622 INFO L225 Difference]: With dead ends: 33847 [2020-10-12 19:42:32,622 INFO L226 Difference]: Without dead ends: 27969 [2020-10-12 19:42:32,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2020-10-12 19:42:32,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27969 states. [2020-10-12 19:42:33,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27969 to 15166. [2020-10-12 19:42:33,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15166 states. [2020-10-12 19:42:33,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15166 states to 15166 states and 22190 transitions. [2020-10-12 19:42:33,478 INFO L78 Accepts]: Start accepts. Automaton has 15166 states and 22190 transitions. Word has length 93 [2020-10-12 19:42:33,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:42:33,478 INFO L479 AbstractCegarLoop]: Abstraction has 15166 states and 22190 transitions. [2020-10-12 19:42:33,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:42:33,478 INFO L276 IsEmpty]: Start isEmpty. Operand 15166 states and 22190 transitions. [2020-10-12 19:42:33,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-12 19:42:33,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:42:33,499 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] [2020-10-12 19:42:33,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 19:42:33,500 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:42:33,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:42:33,500 INFO L82 PathProgramCache]: Analyzing trace with hash -560972078, now seen corresponding path program 1 times [2020-10-12 19:42:33,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:42:33,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321415987] [2020-10-12 19:42:33,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:42:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:33,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:33,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:33,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:33,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:34,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:35,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:35,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:35,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:35,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:37,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:38,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:38,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 19:42:38,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:42:38,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 19:42:38,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:38,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:42:38,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:42:38,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 19:42:38,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:40,289 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:42:40,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:42:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:40,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:40,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:40,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:42:40,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:42:40,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 19:42:40,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:40,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:42:40,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:42:40,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:42:40,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:42:40,383 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 19:42:40,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321415987] [2020-10-12 19:42:40,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:42:40,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:42:40,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979494974] [2020-10-12 19:42:40,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:42:40,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:42:40,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:42:40,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:42:40,386 INFO L87 Difference]: Start difference. First operand 15166 states and 22190 transitions. Second operand 12 states. [2020-10-12 19:42:41,537 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 496 [2020-10-12 19:42:52,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:42:52,849 INFO L93 Difference]: Finished difference Result 40779 states and 60233 transitions. [2020-10-12 19:42:52,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 19:42:52,849 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 93 [2020-10-12 19:42:52,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:42:52,924 INFO L225 Difference]: With dead ends: 40779 [2020-10-12 19:42:52,924 INFO L226 Difference]: Without dead ends: 32636 [2020-10-12 19:42:52,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=188, Invalid=514, Unknown=0, NotChecked=0, Total=702 [2020-10-12 19:42:52,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32636 states. [2020-10-12 19:42:54,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32636 to 19062. [2020-10-12 19:42:54,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19062 states. [2020-10-12 19:42:54,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19062 states to 19062 states and 28113 transitions. [2020-10-12 19:42:54,311 INFO L78 Accepts]: Start accepts. Automaton has 19062 states and 28113 transitions. Word has length 93 [2020-10-12 19:42:54,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:42:54,312 INFO L479 AbstractCegarLoop]: Abstraction has 19062 states and 28113 transitions. [2020-10-12 19:42:54,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:42:54,312 INFO L276 IsEmpty]: Start isEmpty. Operand 19062 states and 28113 transitions. [2020-10-12 19:42:54,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-12 19:42:54,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:42:54,326 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] [2020-10-12 19:42:54,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 19:42:54,327 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:42:54,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:42:54,327 INFO L82 PathProgramCache]: Analyzing trace with hash 607702484, now seen corresponding path program 1 times [2020-10-12 19:42:54,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:42:54,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450568014] [2020-10-12 19:42:54,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:42:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:42:54,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:54,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:54,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:54,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:55,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:55,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:57,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:57,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:57,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:58,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:42:59,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:42:59,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 19:42:59,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:42:59,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 19:42:59,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:42:59,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:42:59,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:42:59,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 19:42:59,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:00,783 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:43:00,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:43:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:00,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:00,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:00,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:43:00,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:43:00,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 19:43:00,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:00,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:43:00,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:43:00,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:43:00,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:00,876 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 19:43:00,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450568014] [2020-10-12 19:43:00,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:43:00,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:43:00,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453451970] [2020-10-12 19:43:00,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:43:00,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:43:00,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:43:00,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:43:00,879 INFO L87 Difference]: Start difference. First operand 19062 states and 28113 transitions. Second operand 11 states. [2020-10-12 19:43:02,180 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 514 [2020-10-12 19:43:14,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:43:14,603 INFO L93 Difference]: Finished difference Result 50031 states and 74555 transitions. [2020-10-12 19:43:14,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-12 19:43:14,603 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2020-10-12 19:43:14,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:43:14,680 INFO L225 Difference]: With dead ends: 50031 [2020-10-12 19:43:14,680 INFO L226 Difference]: Without dead ends: 40640 [2020-10-12 19:43:14,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=196, Invalid=674, Unknown=0, NotChecked=0, Total=870 [2020-10-12 19:43:14,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40640 states. [2020-10-12 19:43:16,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40640 to 19062. [2020-10-12 19:43:16,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19062 states. [2020-10-12 19:43:16,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19062 states to 19062 states and 28104 transitions. [2020-10-12 19:43:16,140 INFO L78 Accepts]: Start accepts. Automaton has 19062 states and 28104 transitions. Word has length 93 [2020-10-12 19:43:16,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:43:16,141 INFO L479 AbstractCegarLoop]: Abstraction has 19062 states and 28104 transitions. [2020-10-12 19:43:16,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:43:16,141 INFO L276 IsEmpty]: Start isEmpty. Operand 19062 states and 28104 transitions. [2020-10-12 19:43:16,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-12 19:43:16,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:43:16,155 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] [2020-10-12 19:43:16,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 19:43:16,155 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:43:16,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:43:16,156 INFO L82 PathProgramCache]: Analyzing trace with hash 912389784, now seen corresponding path program 1 times [2020-10-12 19:43:16,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:43:16,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389440354] [2020-10-12 19:43:16,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:43:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:16,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:16,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:16,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:16,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:16,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:16,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:17,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:18,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:18,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:21,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:21,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 19:43:21,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 19:43:21,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5100 [2020-10-12 19:43:21,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:21,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:43:21,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:43:21,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 19:43:21,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:22,592 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:43:22,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:43:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:22,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:22,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:22,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:43:22,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:43:22,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 19:43:22,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:22,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:43:22,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:43:22,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:43:22,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:22,728 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 19:43:22,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389440354] [2020-10-12 19:43:22,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:43:22,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:43:22,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925729399] [2020-10-12 19:43:22,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:43:22,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:43:22,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:43:22,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:43:22,731 INFO L87 Difference]: Start difference. First operand 19062 states and 28104 transitions. Second operand 12 states. [2020-10-12 19:43:24,296 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 503 [2020-10-12 19:43:35,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:43:35,935 INFO L93 Difference]: Finished difference Result 39126 states and 58312 transitions. [2020-10-12 19:43:35,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 19:43:35,935 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 93 [2020-10-12 19:43:35,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:43:35,997 INFO L225 Difference]: With dead ends: 39126 [2020-10-12 19:43:35,998 INFO L226 Difference]: Without dead ends: 26959 [2020-10-12 19:43:36,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2020-10-12 19:43:36,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26959 states. [2020-10-12 19:43:37,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26959 to 10459. [2020-10-12 19:43:37,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10459 states. [2020-10-12 19:43:37,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10459 states to 10459 states and 15314 transitions. [2020-10-12 19:43:37,509 INFO L78 Accepts]: Start accepts. Automaton has 10459 states and 15314 transitions. Word has length 93 [2020-10-12 19:43:37,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:43:37,510 INFO L479 AbstractCegarLoop]: Abstraction has 10459 states and 15314 transitions. [2020-10-12 19:43:37,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:43:37,510 INFO L276 IsEmpty]: Start isEmpty. Operand 10459 states and 15314 transitions. [2020-10-12 19:43:37,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-12 19:43:37,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:43:37,521 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] [2020-10-12 19:43:37,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 19:43:37,522 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:43:37,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:43:37,522 INFO L82 PathProgramCache]: Analyzing trace with hash 252192934, now seen corresponding path program 1 times [2020-10-12 19:43:37,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:43:37,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297251113] [2020-10-12 19:43:37,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:43:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:37,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:37,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:37,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:38,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:38,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:38,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:38,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:38,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:39,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:39,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:39,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:40,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:40,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:40,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:40,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:42,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:42,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:42,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:42,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 19:43:42,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-12 19:43:42,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-12 19:43:42,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:42,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:43:42,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:43:42,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 19:43:42,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:43,924 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:43:43,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:43:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:43,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:43,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:43:43,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:43:43,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:43:43,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 19:43:43,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:43:43,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:43:43,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:43:43,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:43:43,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:43:44,006 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 19:43:44,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297251113] [2020-10-12 19:43:44,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:43:44,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:43:44,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663592812] [2020-10-12 19:43:44,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:43:44,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:43:44,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:43:44,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:43:44,009 INFO L87 Difference]: Start difference. First operand 10459 states and 15314 transitions. Second operand 12 states. [2020-10-12 19:43:46,600 WARN L193 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 512 DAG size of output: 511 [2020-10-12 19:43:57,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:43:57,711 INFO L93 Difference]: Finished difference Result 22779 states and 33733 transitions. [2020-10-12 19:43:57,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 19:43:57,712 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 93 [2020-10-12 19:43:57,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:43:57,743 INFO L225 Difference]: With dead ends: 22779 [2020-10-12 19:43:57,743 INFO L226 Difference]: Without dead ends: 18875 [2020-10-12 19:43:57,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=134, Invalid=516, Unknown=0, NotChecked=0, Total=650 [2020-10-12 19:43:57,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18875 states. [2020-10-12 19:43:58,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18875 to 10459. [2020-10-12 19:43:58,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10459 states. [2020-10-12 19:43:58,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10459 states to 10459 states and 15312 transitions. [2020-10-12 19:43:58,812 INFO L78 Accepts]: Start accepts. Automaton has 10459 states and 15312 transitions. Word has length 93 [2020-10-12 19:43:58,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:43:58,812 INFO L479 AbstractCegarLoop]: Abstraction has 10459 states and 15312 transitions. [2020-10-12 19:43:58,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:43:58,812 INFO L276 IsEmpty]: Start isEmpty. Operand 10459 states and 15312 transitions. [2020-10-12 19:43:58,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-12 19:43:58,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:43:58,820 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] [2020-10-12 19:43:58,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 19:43:58,820 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:43:58,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:43:58,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1918708118, now seen corresponding path program 1 times [2020-10-12 19:43:58,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:43:58,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648004072] [2020-10-12 19:43:58,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:43:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:43:58,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:58,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:58,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:59,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:59,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:59,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:59,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:59,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:43:59,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:00,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:00,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:00,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:00,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:02,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:02,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:03,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:03,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 19:44:03,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-12 19:44:03,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 19:44:03,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:03,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:44:03,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:44:03,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 19:44:03,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:44:05,352 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:44:05,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:44:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:05,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:05,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:05,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:44:05,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:44:05,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 19:44:05,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:05,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:44:05,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:44:05,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:44:05,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:44:05,422 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 19:44:05,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648004072] [2020-10-12 19:44:05,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:44:05,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:44:05,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481391549] [2020-10-12 19:44:05,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:44:05,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:44:05,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:44:05,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:44:05,424 INFO L87 Difference]: Start difference. First operand 10459 states and 15312 transitions. Second operand 11 states. [2020-10-12 19:44:07,943 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 523 DAG size of output: 513 [2020-10-12 19:44:16,581 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2020-10-12 19:44:19,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:44:19,170 INFO L93 Difference]: Finished difference Result 29507 states and 43987 transitions. [2020-10-12 19:44:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 19:44:19,171 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2020-10-12 19:44:19,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:44:19,200 INFO L225 Difference]: With dead ends: 29507 [2020-10-12 19:44:19,200 INFO L226 Difference]: Without dead ends: 24255 [2020-10-12 19:44:19,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=321, Invalid=1085, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 19:44:19,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24255 states. [2020-10-12 19:44:20,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24255 to 9303. [2020-10-12 19:44:20,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9303 states. [2020-10-12 19:44:20,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9303 states to 9303 states and 13633 transitions. [2020-10-12 19:44:20,181 INFO L78 Accepts]: Start accepts. Automaton has 9303 states and 13633 transitions. Word has length 93 [2020-10-12 19:44:20,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:44:20,182 INFO L479 AbstractCegarLoop]: Abstraction has 9303 states and 13633 transitions. [2020-10-12 19:44:20,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:44:20,182 INFO L276 IsEmpty]: Start isEmpty. Operand 9303 states and 13633 transitions. [2020-10-12 19:44:20,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-12 19:44:20,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:44:20,189 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] [2020-10-12 19:44:20,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 19:44:20,189 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr19ASSERT_VIOLATIONERROR_FUNCTION, mainErr18ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr20ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr21ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:44:20,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:44:20,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1757498223, now seen corresponding path program 1 times [2020-10-12 19:44:20,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:44:20,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805899849] [2020-10-12 19:44:20,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:44:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:20,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:20,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:20,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:20,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:21,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:23,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:23,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:23,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:24,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:24,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:24,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:25,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:25,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 19:44:25,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 19:44:25,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-12 19:44:25,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:25,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:44:25,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:44:25,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 19:44:25,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:44:26,466 WARN L193 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 487 [2020-10-12 19:44:26,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:44:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:44:26,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:44:26,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:44:26,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:44:26,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:44:26,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 19:44:26,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:44:26,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:44:26,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:44:26,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:44:26,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:44:26,528 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 19:44:26,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805899849] [2020-10-12 19:44:26,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:44:26,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:44:26,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697767032] [2020-10-12 19:44:26,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:44:26,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:44:26,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:44:26,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:44:26,530 INFO L87 Difference]: Start difference. First operand 9303 states and 13633 transitions. Second operand 11 states. [2020-10-12 19:44:27,716 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 504