/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:32:10,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:32:10,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:32:10,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:32:10,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:32:10,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:32:10,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:32:10,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:32:10,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:32:10,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:32:10,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:32:10,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:32:10,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:32:10,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:32:10,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:32:10,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:32:10,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:32:10,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:32:10,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:32:10,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:32:10,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:32:10,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:32:10,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:32:10,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:32:10,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:32:10,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:32:10,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:32:10,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:32:10,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:32:10,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:32:10,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:32:10,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:32:10,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:32:10,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:32:10,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:32:10,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:32:10,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:32:10,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:32:10,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:32:10,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:32:10,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:32:10,465 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 18:32:10,491 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:32:10,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:32:10,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:32:10,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:32:10,495 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:32:10,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:32:10,496 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:32:10,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:32:10,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:32:10,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:32:10,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:32:10,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:32:10,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:32:10,497 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:32:10,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:32:10,498 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:32:10,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:32:10,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:32:10,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:32:10,499 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:32:10,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:32:10,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:32:10,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:32:10,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:32:10,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:32:10,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:32:10,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:32:10,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:32:10,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:32:10,502 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:32:10,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:32:10,858 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:32:10,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:32:10,863 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:32:10,864 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:32:10,865 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2020-10-12 18:32:10,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d34bd3af0/f035724e1a4d4da18e90be0e756d2218/FLAG7a44d056a [2020-10-12 18:32:11,468 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:32:11,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2020-10-12 18:32:11,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d34bd3af0/f035724e1a4d4da18e90be0e756d2218/FLAG7a44d056a [2020-10-12 18:32:11,805 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d34bd3af0/f035724e1a4d4da18e90be0e756d2218 [2020-10-12 18:32:11,813 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:32:11,815 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:32:11,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:32:11,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:32:11,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:32:11,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:32:11" (1/1) ... [2020-10-12 18:32:11,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aedcf03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:32:11, skipping insertion in model container [2020-10-12 18:32:11,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:32:11" (1/1) ... [2020-10-12 18:32:11,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:32:11,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:32:12,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:32:12,206 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:32:12,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:32:12,311 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:32:12,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:32:12 WrapperNode [2020-10-12 18:32:12,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:32:12,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:32:12,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:32:12,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:32:12,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:32:12" (1/1) ... [2020-10-12 18:32:12,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:32:12" (1/1) ... [2020-10-12 18:32:12,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:32:12" (1/1) ... [2020-10-12 18:32:12,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:32:12" (1/1) ... [2020-10-12 18:32:12,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:32:12" (1/1) ... [2020-10-12 18:32:12,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:32:12" (1/1) ... [2020-10-12 18:32:12,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:32:12" (1/1) ... [2020-10-12 18:32:12,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:32:12,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:32:12,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:32:12,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:32:12,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:32:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:32:12,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:32:12,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:32:12,489 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:32:12,489 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:32:12,489 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:32:12,490 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:32:12,490 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:32:12,491 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:32:12,491 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:32:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:32:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:32:12,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:32:12,492 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:32:12,492 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:32:12,492 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:32:12,494 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:32:12,495 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:32:12,495 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:32:12,495 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:32:12,496 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:32:12,496 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:32:12,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:32:12,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:32:12,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:32:13,215 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:32:13,216 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:32:13,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:32:13 BoogieIcfgContainer [2020-10-12 18:32:13,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:32:13,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:32:13,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:32:13,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:32:13,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:32:11" (1/3) ... [2020-10-12 18:32:13,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d05960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:32:13, skipping insertion in model container [2020-10-12 18:32:13,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:32:12" (2/3) ... [2020-10-12 18:32:13,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d05960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:32:13, skipping insertion in model container [2020-10-12 18:32:13,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:32:13" (3/3) ... [2020-10-12 18:32:13,231 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.1.ufo.BOUNDED-6.pals.c [2020-10-12 18:32:13,243 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:32:13,251 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:32:13,266 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:32:13,293 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:32:13,294 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:32:13,294 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:32:13,294 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:32:13,294 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:32:13,295 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:32:13,295 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:32:13,295 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:32:13,320 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2020-10-12 18:32:13,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-12 18:32:13,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:32:13,332 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] [2020-10-12 18:32:13,332 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:32:13,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:32:13,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1236741439, now seen corresponding path program 1 times [2020-10-12 18:32:13,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:32:13,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051906049] [2020-10-12 18:32:13,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:32:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:13,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:14,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:14,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 18:32:14,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:14,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-10-12 18:32:14,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:14,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:32:14,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-12 18:32:14,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:32:14,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:32:14,342 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:32:14,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:32:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:14,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:14,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:14,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:32:14,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:14,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 18:32:14,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:14,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:32:14,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:32:14,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:32:14,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:14,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:32:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:14,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:14,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:14,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 18:32:14,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:14,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 18:32:14,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:14,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:32:14,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:32:14,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:32:14,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:32:14,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:32:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:14,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:14,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:14,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:14,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:14,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:32:14,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:14,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:32:14,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:32:14,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:32:14,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:32:14,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:32:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:14,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:14,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:14,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:14,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:14,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:32:14,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:14,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:32:14,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:32:14,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:32:14,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:14,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 18:32:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:14,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:14,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:14,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:14,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:14,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:32:14,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:14,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:32:14,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:32:14,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:32:14,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-12 18:32:14,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 18:32:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:14,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:14,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:14,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:14,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:14,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:32:14,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:14,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:32:14,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:32:14,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:32:14,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:32:14,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:32:14,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051906049] [2020-10-12 18:32:14,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:32:14,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 18:32:14,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545157684] [2020-10-12 18:32:14,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 18:32:14,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:32:14,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 18:32:14,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 18:32:14,694 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 6 states. [2020-10-12 18:32:15,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:32:15,705 INFO L93 Difference]: Finished difference Result 252 states and 399 transitions. [2020-10-12 18:32:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 18:32:15,707 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-10-12 18:32:15,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:32:15,721 INFO L225 Difference]: With dead ends: 252 [2020-10-12 18:32:15,722 INFO L226 Difference]: Without dead ends: 156 [2020-10-12 18:32:15,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:32:15,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-12 18:32:15,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 144. [2020-10-12 18:32:15,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-12 18:32:15,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 231 transitions. [2020-10-12 18:32:15,809 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 231 transitions. Word has length 58 [2020-10-12 18:32:15,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:32:15,810 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 231 transitions. [2020-10-12 18:32:15,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 18:32:15,810 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 231 transitions. [2020-10-12 18:32:15,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-12 18:32:15,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:32:15,814 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] [2020-10-12 18:32:15,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:32:15,814 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:32:15,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:32:15,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1309127997, now seen corresponding path program 1 times [2020-10-12 18:32:15,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:32:15,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [123114726] [2020-10-12 18:32:15,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:32:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:15,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:16,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:16,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 18:32:16,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:16,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 410 [2020-10-12 18:32:16,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:16,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:32:16,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-12 18:32:16,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:32:16,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:32:16,485 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:32:16,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:32:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:16,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:16,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:16,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:32:16,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:16,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:32:16,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:16,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:32:16,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:32:16,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:32:16,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:32:16,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:32:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:16,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:16,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:16,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 18:32:16,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:16,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 18:32:16,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:16,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:32:16,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:32:16,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:32:16,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:16,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:32:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:16,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:16,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:16,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:16,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:16,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:32:16,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:16,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:32:16,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:32:16,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:32:16,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:32:16,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:32:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:16,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:16,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:16,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:16,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:16,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:32:16,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:16,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:32:16,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:32:16,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:32:16,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:16,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 18:32:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:16,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:16,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:16,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:16,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:16,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:32:16,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:16,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:32:16,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:32:16,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:32:16,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:16,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 18:32:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:16,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:16,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:16,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:16,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:16,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:32:16,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:16,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:32:16,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:32:16,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:32:16,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:32:16,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [123114726] [2020-10-12 18:32:16,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:32:16,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:32:16,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945729151] [2020-10-12 18:32:16,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:32:16,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:32:16,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:32:16,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:32:16,759 INFO L87 Difference]: Start difference. First operand 144 states and 231 transitions. Second operand 10 states. [2020-10-12 18:32:17,161 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:32:17,318 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:32:18,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:32:18,461 INFO L93 Difference]: Finished difference Result 256 states and 402 transitions. [2020-10-12 18:32:18,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 18:32:18,467 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2020-10-12 18:32:18,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:32:18,471 INFO L225 Difference]: With dead ends: 256 [2020-10-12 18:32:18,471 INFO L226 Difference]: Without dead ends: 165 [2020-10-12 18:32:18,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:32:18,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-10-12 18:32:18,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 144. [2020-10-12 18:32:18,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-12 18:32:18,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 210 transitions. [2020-10-12 18:32:18,497 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 210 transitions. Word has length 58 [2020-10-12 18:32:18,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:32:18,498 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 210 transitions. [2020-10-12 18:32:18,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:32:18,498 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 210 transitions. [2020-10-12 18:32:18,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-12 18:32:18,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:32:18,501 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] [2020-10-12 18:32:18,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:32:18,501 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:32:18,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:32:18,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1560697247, now seen corresponding path program 1 times [2020-10-12 18:32:18,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:32:18,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124768701] [2020-10-12 18:32:18,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:32:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:18,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:18,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:18,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:19,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:23,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:23,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 18:32:23,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:32:23,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-12 18:32:23,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:23,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:32:23,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-12 18:32:23,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 18:32:23,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:32:23,741 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:32:23,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:32:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:23,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:23,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:23,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:32:23,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:23,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:32:23,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:32:23,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:32:23,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:32:23,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:23,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:32:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:23,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:23,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:23,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 18:32:23,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:23,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 18:32:23,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:23,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:32:23,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:32:23,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:32:23,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:23,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:32:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:23,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:23,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:23,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:23,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:23,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:32:23,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:23,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:32:23,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:32:23,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:32:23,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:23,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:32:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:23,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:23,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:23,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:23,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:32:23,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:23,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:32:23,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:32:23,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:32:23,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:24,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:32:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:24,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:24,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:24,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:24,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:24,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:32:24,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:24,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:32:24,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:32:24,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:32:24,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:24,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:32:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:24,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:24,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:24,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:24,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:24,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:32:24,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:32:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:32:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:32:24,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:32:24,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:32:24,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [124768701] [2020-10-12 18:32:24,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:32:24,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:32:24,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270924765] [2020-10-12 18:32:24,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:32:24,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:32:24,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:32:24,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:32:24,102 INFO L87 Difference]: Start difference. First operand 144 states and 210 transitions. Second operand 13 states. [2020-10-12 18:32:24,296 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:32:24,718 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:32:24,899 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:32:26,666 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:32:26,862 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:32:27,036 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:32:29,563 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-12 18:32:30,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:32:30,496 INFO L93 Difference]: Finished difference Result 847 states and 1315 transitions. [2020-10-12 18:32:30,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-12 18:32:30,497 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 78 [2020-10-12 18:32:30,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:32:30,508 INFO L225 Difference]: With dead ends: 847 [2020-10-12 18:32:30,508 INFO L226 Difference]: Without dead ends: 762 [2020-10-12 18:32:30,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=639, Invalid=2223, Unknown=0, NotChecked=0, Total=2862 [2020-10-12 18:32:30,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2020-10-12 18:32:30,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 630. [2020-10-12 18:32:30,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2020-10-12 18:32:30,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 969 transitions. [2020-10-12 18:32:30,592 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 969 transitions. Word has length 78 [2020-10-12 18:32:30,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:32:30,593 INFO L479 AbstractCegarLoop]: Abstraction has 630 states and 969 transitions. [2020-10-12 18:32:30,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:32:30,593 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 969 transitions. [2020-10-12 18:32:30,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-12 18:32:30,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:32:30,603 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] [2020-10-12 18:32:30,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:32:30,604 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:32:30,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:32:30,604 INFO L82 PathProgramCache]: Analyzing trace with hash 442182854, now seen corresponding path program 1 times [2020-10-12 18:32:30,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:32:30,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489593518] [2020-10-12 18:32:30,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:32:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:30,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:30,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:30,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:31,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:33,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:35,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:35,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-12 18:32:35,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:32:35,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:32:35,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:35,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:32:35,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-12 18:32:35,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 18:32:35,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:35,824 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:32:35,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:32:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:35,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:35,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:35,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:32:35,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:35,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:32:35,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:35,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:32:35,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:32:35,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:32:35,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:35,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:32:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:35,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:35,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:35,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 18:32:35,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:35,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 18:32:35,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:32:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:32:35,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 18:32:35,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:35,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:32:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:35,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:35,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:35,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:35,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:35,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:32:35,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:35,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:32:35,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:32:35,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:32:35,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:35,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:32:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:35,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:36,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:36,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:36,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:36,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:32:36,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:36,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:32:36,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:32:36,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:32:36,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:36,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:32:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:36,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:36,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:36,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:36,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:36,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:32:36,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:36,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:32:36,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:32:36,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:32:36,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:36,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:32:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:36,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:36,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:36,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:32:36,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:36,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:32:36,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:36,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:32:36,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:32:36,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:32:36,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:36,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:32:36,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489593518] [2020-10-12 18:32:36,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:32:36,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:32:36,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972562579] [2020-10-12 18:32:36,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:32:36,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:32:36,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:32:36,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:32:36,143 INFO L87 Difference]: Start difference. First operand 630 states and 969 transitions. Second operand 14 states. [2020-10-12 18:32:36,413 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:32:36,838 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:32:37,001 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:32:37,172 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:32:38,902 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:32:39,073 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:32:39,264 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:32:39,449 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:32:42,540 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:32:42,769 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:32:45,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:32:45,547 INFO L93 Difference]: Finished difference Result 2852 states and 4476 transitions. [2020-10-12 18:32:45,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-12 18:32:45,548 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 79 [2020-10-12 18:32:45,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:32:45,590 INFO L225 Difference]: With dead ends: 2852 [2020-10-12 18:32:45,590 INFO L226 Difference]: Without dead ends: 2281 [2020-10-12 18:32:45,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1413 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=889, Invalid=3533, Unknown=0, NotChecked=0, Total=4422 [2020-10-12 18:32:45,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2281 states. [2020-10-12 18:32:45,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2281 to 1220. [2020-10-12 18:32:45,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1220 states. [2020-10-12 18:32:45,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1901 transitions. [2020-10-12 18:32:45,694 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1901 transitions. Word has length 79 [2020-10-12 18:32:45,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:32:45,695 INFO L479 AbstractCegarLoop]: Abstraction has 1220 states and 1901 transitions. [2020-10-12 18:32:45,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:32:45,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1901 transitions. [2020-10-12 18:32:45,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-12 18:32:45,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:32:45,697 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] [2020-10-12 18:32:45,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:32:45,698 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:32:45,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:32:45,698 INFO L82 PathProgramCache]: Analyzing trace with hash 76290102, now seen corresponding path program 1 times [2020-10-12 18:32:45,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:32:45,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473213632] [2020-10-12 18:32:45,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:32:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:45,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:45,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:45,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:46,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:46,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:50,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:50,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 18:32:50,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:32:50,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 18:32:50,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:50,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:32:50,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-12 18:32:50,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 18:32:50,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:50,898 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:32:50,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:32:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:50,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:50,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:50,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:32:50,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:50,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:32:50,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:50,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:32:50,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:32:50,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:32:50,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:50,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:32:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:50,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:50,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:50,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 18:32:50,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:50,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 18:32:50,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:50,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:32:50,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:32:50,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 18:32:50,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:51,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:32:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:51,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:51,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:51,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:51,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:51,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:32:51,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:51,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:32:51,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:32:51,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:32:51,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:51,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:32:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:51,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:51,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:51,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:51,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:51,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:32:51,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:51,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:32:51,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:32:51,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:32:51,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:51,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:32:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:51,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:51,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:51,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:32:51,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:51,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:32:51,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:51,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:32:51,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:32:51,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:32:51,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:51,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:32:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:32:51,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:32:51,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:32:51,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:32:51,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:32:51,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:32:51,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:32:51,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:32:51,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:32:51,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:32:51,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:32:51,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:32:51,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473213632] [2020-10-12 18:32:51,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:32:51,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:32:51,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195966200] [2020-10-12 18:32:51,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:32:51,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:32:51,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:32:51,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:32:51,245 INFO L87 Difference]: Start difference. First operand 1220 states and 1901 transitions. Second operand 14 states. [2020-10-12 18:32:51,473 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:32:51,871 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:32:52,041 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:32:52,209 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:32:53,486 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:32:54,642 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:32:54,818 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:32:54,990 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:32:55,202 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:32:55,385 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:33:00,256 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:33:00,471 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:33:01,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:33:01,916 INFO L93 Difference]: Finished difference Result 3909 states and 6107 transitions. [2020-10-12 18:33:01,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-10-12 18:33:01,921 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 80 [2020-10-12 18:33:01,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:33:01,936 INFO L225 Difference]: With dead ends: 3909 [2020-10-12 18:33:01,936 INFO L226 Difference]: Without dead ends: 2771 [2020-10-12 18:33:01,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1924 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1105, Invalid=4595, Unknown=0, NotChecked=0, Total=5700 [2020-10-12 18:33:01,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states. [2020-10-12 18:33:02,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 2205. [2020-10-12 18:33:02,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2205 states. [2020-10-12 18:33:02,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 3465 transitions. [2020-10-12 18:33:02,089 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 3465 transitions. Word has length 80 [2020-10-12 18:33:02,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:33:02,090 INFO L479 AbstractCegarLoop]: Abstraction has 2205 states and 3465 transitions. [2020-10-12 18:33:02,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:33:02,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 3465 transitions. [2020-10-12 18:33:02,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-12 18:33:02,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:33:02,092 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] [2020-10-12 18:33:02,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:33:02,093 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:33:02,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:33:02,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1781505125, now seen corresponding path program 1 times [2020-10-12 18:33:02,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:33:02,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528286496] [2020-10-12 18:33:02,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:33:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:02,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:02,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:02,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:02,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:02,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:02,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:05,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:07,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:07,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:33:07,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:33:07,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:33:07,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:07,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:33:07,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-12 18:33:07,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 18:33:07,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:07,301 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:33:07,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:33:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:07,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:07,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:07,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:33:07,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:07,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:33:07,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:07,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:33:07,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:33:07,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:33:07,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:07,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:33:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:07,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:07,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:07,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 18:33:07,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:07,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:33:07,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:07,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:33:07,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:33:07,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 18:33:07,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:07,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:33:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:07,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:07,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:07,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:33:07,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:07,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:33:07,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:07,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:33:07,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:33:07,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:33:07,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:07,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:33:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:07,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:07,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:07,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:33:07,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:07,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:33:07,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:33:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:33:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:33:07,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:07,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:33:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:07,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:07,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:07,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:33:07,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:07,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:33:07,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:07,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:33:07,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:33:07,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:33:07,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:07,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:33:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:07,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:07,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:07,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:33:07,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:07,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:33:07,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:07,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:33:07,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:33:07,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:33:07,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:07,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:33:07,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528286496] [2020-10-12 18:33:07,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:33:07,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:33:07,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072098351] [2020-10-12 18:33:07,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:33:07,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:33:07,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:33:07,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:33:07,601 INFO L87 Difference]: Start difference. First operand 2205 states and 3465 transitions. Second operand 13 states. [2020-10-12 18:33:07,951 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 150 [2020-10-12 18:33:08,394 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:33:08,555 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:33:08,746 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-12 18:33:09,302 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:33:09,695 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-10-12 18:33:10,019 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:33:10,773 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:33:11,018 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:33:12,890 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-12 18:33:13,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:33:13,953 INFO L93 Difference]: Finished difference Result 3781 states and 5917 transitions. [2020-10-12 18:33:13,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-12 18:33:13,954 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2020-10-12 18:33:13,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:33:13,969 INFO L225 Difference]: With dead ends: 3781 [2020-10-12 18:33:13,969 INFO L226 Difference]: Without dead ends: 2463 [2020-10-12 18:33:13,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=453, Invalid=1527, Unknown=0, NotChecked=0, Total=1980 [2020-10-12 18:33:13,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2020-10-12 18:33:14,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 1859. [2020-10-12 18:33:14,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1859 states. [2020-10-12 18:33:14,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2910 transitions. [2020-10-12 18:33:14,110 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2910 transitions. Word has length 81 [2020-10-12 18:33:14,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:33:14,111 INFO L479 AbstractCegarLoop]: Abstraction has 1859 states and 2910 transitions. [2020-10-12 18:33:14,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:33:14,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2910 transitions. [2020-10-12 18:33:14,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-12 18:33:14,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:33:14,114 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] [2020-10-12 18:33:14,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:33:14,114 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:33:14,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:33:14,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1566831741, now seen corresponding path program 1 times [2020-10-12 18:33:14,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:33:14,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077893872] [2020-10-12 18:33:14,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:33:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:14,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:14,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:14,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:14,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:14,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:19,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:19,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:33:19,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:33:19,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:33:19,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:19,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:33:19,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-12 18:33:19,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 18:33:19,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:19,370 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:33:19,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:33:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:19,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:19,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:19,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:33:19,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:19,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:33:19,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:19,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:33:19,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:33:19,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:33:19,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:19,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:33:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:19,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:19,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:19,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 18:33:19,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:19,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 18:33:19,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:19,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:33:19,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:33:19,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-12 18:33:19,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:33:19,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:33:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:19,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:19,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:19,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:33:19,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:19,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:33:19,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:19,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:33:19,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:33:19,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:33:19,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:33:19,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:33:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:19,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:19,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:19,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:33:19,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:19,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:33:19,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:19,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:33:19,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:33:19,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:33:19,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:33:19,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:33:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:19,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:19,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:19,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:33:19,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:19,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:33:19,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:19,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:33:19,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:33:19,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:33:19,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:33:19,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:33:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:19,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:19,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:19,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:33:19,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:19,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:33:19,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:19,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:33:19,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:33:19,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:33:19,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:19,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:33:19,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077893872] [2020-10-12 18:33:19,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:33:19,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:33:19,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790667212] [2020-10-12 18:33:19,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:33:19,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:33:19,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:33:19,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:33:19,811 INFO L87 Difference]: Start difference. First operand 1859 states and 2910 transitions. Second operand 14 states. [2020-10-12 18:33:20,024 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:33:20,479 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:33:20,641 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:33:20,809 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:33:22,655 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:33:22,847 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:33:23,016 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:33:23,282 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:33:23,471 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:33:27,123 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-12 18:33:28,498 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:33:28,754 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:33:31,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:33:31,295 INFO L93 Difference]: Finished difference Result 5962 states and 9497 transitions. [2020-10-12 18:33:31,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-10-12 18:33:31,296 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 81 [2020-10-12 18:33:31,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:33:31,329 INFO L225 Difference]: With dead ends: 5962 [2020-10-12 18:33:31,330 INFO L226 Difference]: Without dead ends: 4185 [2020-10-12 18:33:31,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1957 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1172, Invalid=4528, Unknown=0, NotChecked=0, Total=5700 [2020-10-12 18:33:31,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4185 states. [2020-10-12 18:33:31,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4185 to 3380. [2020-10-12 18:33:31,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3380 states. [2020-10-12 18:33:31,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3380 states to 3380 states and 5320 transitions. [2020-10-12 18:33:31,817 INFO L78 Accepts]: Start accepts. Automaton has 3380 states and 5320 transitions. Word has length 81 [2020-10-12 18:33:31,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:33:31,817 INFO L479 AbstractCegarLoop]: Abstraction has 3380 states and 5320 transitions. [2020-10-12 18:33:31,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:33:31,818 INFO L276 IsEmpty]: Start isEmpty. Operand 3380 states and 5320 transitions. [2020-10-12 18:33:31,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-12 18:33:31,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:33:31,822 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] [2020-10-12 18:33:31,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:33:31,823 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:33:31,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:33:31,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1521298681, now seen corresponding path program 1 times [2020-10-12 18:33:31,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:33:31,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848076275] [2020-10-12 18:33:31,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:33:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:31,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:31,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:31,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:32,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:32,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:32,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:35,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:36,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:36,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-12 18:33:36,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:33:36,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 18:33:36,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:36,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:33:36,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-12 18:33:36,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 18:33:36,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:37,059 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:33:37,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:33:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:37,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:37,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:37,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:33:37,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:37,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:33:37,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:37,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:33:37,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:33:37,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:33:37,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:33:37,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:33:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:37,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:37,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:37,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 18:33:37,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:37,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 18:33:37,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:37,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:33:37,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:33:37,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:33:37,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:37,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:33:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:37,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:37,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:37,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:33:37,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:37,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:33:37,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:33:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:33:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:33:37,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:37,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 18:33:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:37,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:37,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:37,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:33:37,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:37,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:33:37,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:37,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:33:37,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:33:37,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:33:37,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:37,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:33:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:37,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:37,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:37,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:33:37,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:37,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:33:37,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:37,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:33:37,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:33:37,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:33:37,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:37,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:33:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:37,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:37,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:37,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:33:37,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:37,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:33:37,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:37,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:33:37,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:33:37,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:33:37,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:33:37,422 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 18:33:37,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848076275] [2020-10-12 18:33:37,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:33:37,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:33:37,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631922777] [2020-10-12 18:33:37,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:33:37,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:33:37,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:33:37,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:33:37,425 INFO L87 Difference]: Start difference. First operand 3380 states and 5320 transitions. Second operand 13 states. [2020-10-12 18:33:37,608 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:33:38,008 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:33:38,165 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:33:39,131 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-12 18:33:39,275 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2020-10-12 18:33:39,453 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-12 18:33:39,680 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-12 18:33:40,084 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 151 [2020-10-12 18:33:40,818 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-12 18:33:41,181 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2020-10-12 18:33:41,314 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-12 18:33:41,679 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-12 18:33:41,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:33:41,910 INFO L93 Difference]: Finished difference Result 5925 states and 9308 transitions. [2020-10-12 18:33:41,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 18:33:41,910 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2020-10-12 18:33:41,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:33:41,930 INFO L225 Difference]: With dead ends: 5925 [2020-10-12 18:33:41,931 INFO L226 Difference]: Without dead ends: 4245 [2020-10-12 18:33:41,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=248, Invalid=744, Unknown=0, NotChecked=0, Total=992 [2020-10-12 18:33:41,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4245 states. [2020-10-12 18:33:42,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4245 to 3683. [2020-10-12 18:33:42,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3683 states. [2020-10-12 18:33:42,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3683 states to 3683 states and 5814 transitions. [2020-10-12 18:33:42,290 INFO L78 Accepts]: Start accepts. Automaton has 3683 states and 5814 transitions. Word has length 81 [2020-10-12 18:33:42,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:33:42,292 INFO L479 AbstractCegarLoop]: Abstraction has 3683 states and 5814 transitions. [2020-10-12 18:33:42,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:33:42,292 INFO L276 IsEmpty]: Start isEmpty. Operand 3683 states and 5814 transitions. [2020-10-12 18:33:42,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-12 18:33:42,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:33:42,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:33:42,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:33:42,295 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:33:42,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:33:42,296 INFO L82 PathProgramCache]: Analyzing trace with hash -472453803, now seen corresponding path program 1 times [2020-10-12 18:33:42,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:33:42,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431192036] [2020-10-12 18:33:42,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:33:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:42,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:42,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:42,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:42,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:42,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:42,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:44,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:45,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:47,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:47,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 18:33:47,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:33:47,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:33:47,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:47,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:33:47,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-12 18:33:47,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 18:33:47,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:47,488 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:33:47,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:33:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:47,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:47,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:47,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:33:47,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:47,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:33:47,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:47,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:33:47,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:33:47,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:33:47,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:47,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:33:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:47,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:47,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:47,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 18:33:47,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:47,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 18:33:47,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:47,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:33:47,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:33:47,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 18:33:47,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:47,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:33:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:47,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:47,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:47,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:33:47,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:47,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:33:47,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:47,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:33:47,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:33:47,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:33:47,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:47,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:33:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:47,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:47,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:47,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:33:47,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:47,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:33:47,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:47,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:33:47,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:33:47,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:33:47,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:47,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:33:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:47,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:47,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:47,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:33:47,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:47,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:33:47,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:47,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:33:47,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:33:47,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:33:47,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:47,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:33:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:33:47,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:33:47,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:33:47,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:33:47,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:33:47,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:33:47,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:33:47,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:33:47,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:33:47,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:33:47,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:33:47,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:33:47,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431192036] [2020-10-12 18:33:47,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:33:47,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:33:47,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319429016] [2020-10-12 18:33:47,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:33:47,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:33:47,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:33:47,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:33:47,796 INFO L87 Difference]: Start difference. First operand 3683 states and 5814 transitions. Second operand 14 states. [2020-10-12 18:33:48,016 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:33:48,539 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:33:48,705 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:33:49,991 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:33:50,630 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:33:51,326 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:33:51,479 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:33:51,659 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:33:51,812 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:33:51,979 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:33:52,177 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:33:52,401 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:33:52,627 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:33:52,807 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:33:53,091 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:33:58,390 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:33:58,780 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:34:00,158 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:34:00,700 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:34:07,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:34:07,035 INFO L93 Difference]: Finished difference Result 11442 states and 18063 transitions. [2020-10-12 18:34:07,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2020-10-12 18:34:07,036 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 82 [2020-10-12 18:34:07,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:34:07,094 INFO L225 Difference]: With dead ends: 11442 [2020-10-12 18:34:07,094 INFO L226 Difference]: Without dead ends: 10044 [2020-10-12 18:34:07,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5482 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=1978, Invalid=11828, Unknown=0, NotChecked=0, Total=13806 [2020-10-12 18:34:07,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10044 states. [2020-10-12 18:34:07,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10044 to 7799. [2020-10-12 18:34:07,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7799 states. [2020-10-12 18:34:07,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7799 states to 7799 states and 12388 transitions. [2020-10-12 18:34:07,852 INFO L78 Accepts]: Start accepts. Automaton has 7799 states and 12388 transitions. Word has length 82 [2020-10-12 18:34:07,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:34:07,853 INFO L479 AbstractCegarLoop]: Abstraction has 7799 states and 12388 transitions. [2020-10-12 18:34:07,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:34:07,853 INFO L276 IsEmpty]: Start isEmpty. Operand 7799 states and 12388 transitions. [2020-10-12 18:34:07,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-12 18:34:07,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:34:07,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:34:07,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:34:07,858 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:34:07,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:34:07,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1302707520, now seen corresponding path program 1 times [2020-10-12 18:34:07,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:34:07,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341105259] [2020-10-12 18:34:07,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:34:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:07,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:07,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:07,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:07,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:08,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:08,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:10,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:10,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:12,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:12,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 18:34:12,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:34:12,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 18:34:12,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:12,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:34:12,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-12 18:34:12,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 18:34:12,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:13,070 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:34:13,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:34:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:13,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:13,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:13,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:34:13,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:13,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:34:13,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:13,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:13,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:13,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:13,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:13,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:34:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:13,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:13,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:13,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 18:34:13,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:13,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 18:34:13,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:34:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 18:34:13,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:13,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:34:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:13,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:13,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:13,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:13,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:13,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:34:13,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:13,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:34:13,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:34:13,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:34:13,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:13,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:34:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:13,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:13,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:13,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:13,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:13,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:34:13,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:13,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:34:13,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:34:13,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:34:13,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:13,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:34:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:13,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:13,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:13,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:34:13,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:13,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:34:13,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:13,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:34:13,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:13,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:34:13,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:13,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:34:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:13,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:13,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:13,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:34:13,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:13,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:34:13,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:13,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:34:13,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:34:13,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:34:13,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:13,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:34:13,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1341105259] [2020-10-12 18:34:13,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:34:13,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:34:13,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746057811] [2020-10-12 18:34:13,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:34:13,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:34:13,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:34:13,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:34:13,339 INFO L87 Difference]: Start difference. First operand 7799 states and 12388 transitions. Second operand 14 states. [2020-10-12 18:34:13,561 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:34:14,073 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:34:14,248 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:34:16,234 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:34:16,539 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:34:16,720 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:34:16,896 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:34:17,059 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:34:17,256 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:34:17,437 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:34:17,670 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:34:17,909 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:34:18,099 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:34:18,327 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:34:18,523 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-12 18:34:22,885 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-12 18:34:24,109 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:34:25,432 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:34:25,938 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:34:26,170 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 18:34:32,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:34:32,231 INFO L93 Difference]: Finished difference Result 17158 states and 27195 transitions. [2020-10-12 18:34:32,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2020-10-12 18:34:32,232 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 82 [2020-10-12 18:34:32,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:34:32,300 INFO L225 Difference]: With dead ends: 17158 [2020-10-12 18:34:32,301 INFO L226 Difference]: Without dead ends: 13987 [2020-10-12 18:34:32,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5437 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=1978, Invalid=11828, Unknown=0, NotChecked=0, Total=13806 [2020-10-12 18:34:32,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13987 states. [2020-10-12 18:34:33,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13987 to 10843. [2020-10-12 18:34:33,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10843 states. [2020-10-12 18:34:33,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10843 states to 10843 states and 17276 transitions. [2020-10-12 18:34:33,148 INFO L78 Accepts]: Start accepts. Automaton has 10843 states and 17276 transitions. Word has length 82 [2020-10-12 18:34:33,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:34:33,149 INFO L479 AbstractCegarLoop]: Abstraction has 10843 states and 17276 transitions. [2020-10-12 18:34:33,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:34:33,149 INFO L276 IsEmpty]: Start isEmpty. Operand 10843 states and 17276 transitions. [2020-10-12 18:34:33,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-12 18:34:33,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:34:33,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:34:33,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:34:33,154 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:34:33,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:34:33,154 INFO L82 PathProgramCache]: Analyzing trace with hash 607030702, now seen corresponding path program 1 times [2020-10-12 18:34:33,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:34:33,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463362636] [2020-10-12 18:34:33,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:34:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:33,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:33,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:33,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:33,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:33,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:33,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:33,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:38,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:38,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 18:34:38,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:34:38,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 18:34:38,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:38,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:34:38,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-12 18:34:38,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:34:38,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:38,351 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:34:38,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:34:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:38,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:38,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:38,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:34:38,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:38,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:34:38,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:38,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:38,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:38,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:38,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:38,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:34:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:38,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:38,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:38,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 18:34:38,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:38,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:34:38,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:34:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 18:34:38,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:38,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:34:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:38,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:38,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:38,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:34:38,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:38,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:34:38,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:38,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:34:38,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:34:38,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:34:38,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:38,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-12 18:34:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:38,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:38,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:38,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:38,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:38,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:34:38,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:38,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:38,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:34:38,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:38,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:38,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-12 18:34:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:38,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:38,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:38,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:38,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:38,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:34:38,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:38,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:38,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:34:38,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:38,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:38,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-12 18:34:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:38,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:38,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:38,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:34:38,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:38,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:34:38,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:38,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:38,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:34:38,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:38,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:38,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:34:38,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463362636] [2020-10-12 18:34:38,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:34:38,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:34:38,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653731883] [2020-10-12 18:34:38,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:34:38,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:34:38,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:34:38,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:34:38,590 INFO L87 Difference]: Start difference. First operand 10843 states and 17276 transitions. Second operand 9 states. [2020-10-12 18:34:38,759 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:34:39,425 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-12 18:34:40,463 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:34:41,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:34:41,454 INFO L93 Difference]: Finished difference Result 25759 states and 40795 transitions. [2020-10-12 18:34:41,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 18:34:41,455 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-10-12 18:34:41,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:34:41,522 INFO L225 Difference]: With dead ends: 25759 [2020-10-12 18:34:41,523 INFO L226 Difference]: Without dead ends: 14991 [2020-10-12 18:34:41,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2020-10-12 18:34:41,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14991 states. [2020-10-12 18:34:43,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14991 to 12559. [2020-10-12 18:34:43,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12559 states. [2020-10-12 18:34:43,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12559 states to 12559 states and 19840 transitions. [2020-10-12 18:34:43,609 INFO L78 Accepts]: Start accepts. Automaton has 12559 states and 19840 transitions. Word has length 82 [2020-10-12 18:34:43,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:34:43,610 INFO L479 AbstractCegarLoop]: Abstraction has 12559 states and 19840 transitions. [2020-10-12 18:34:43,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:34:43,610 INFO L276 IsEmpty]: Start isEmpty. Operand 12559 states and 19840 transitions. [2020-10-12 18:34:43,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 18:34:43,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:34:43,613 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] [2020-10-12 18:34:43,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:34:43,613 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:34:43,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:34:43,613 INFO L82 PathProgramCache]: Analyzing trace with hash -36988010, now seen corresponding path program 1 times [2020-10-12 18:34:43,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:34:43,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257354355] [2020-10-12 18:34:43,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:34:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:43,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:43,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:43,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:43,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:43,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:44,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:45,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:45,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:45,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:48,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:48,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 18:34:48,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:34:48,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:34:48,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:48,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:34:48,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-12 18:34:48,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-12 18:34:48,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:48,818 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:34:48,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:34:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:48,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:48,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:48,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:34:48,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:48,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:34:48,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:48,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:34:48,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:48,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:34:48,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:48,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:34:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:48,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:48,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:48,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 18:34:48,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:48,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:34:48,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:48,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:34:48,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:48,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 18:34:48,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:48,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:34:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:48,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:48,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:48,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:34:48,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:48,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:34:48,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:48,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:34:48,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:48,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:34:48,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:48,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 18:34:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:48,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:48,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:48,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:34:48,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:48,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:34:48,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:34:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:34:48,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:34:48,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:48,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 18:34:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:49,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:49,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:49,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:34:49,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:49,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:34:49,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:49,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:34:49,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:34:49,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:34:49,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:49,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-12 18:34:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:49,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:49,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:34:49,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:34:49,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:34:49,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:34:49,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:34:49,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:34:49,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:34:49,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:34:49,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:34:49,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:34:49,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257354355] [2020-10-12 18:34:49,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:34:49,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:34:49,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145035084] [2020-10-12 18:34:49,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:34:49,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:34:49,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:34:49,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:34:49,038 INFO L87 Difference]: Start difference. First operand 12559 states and 19840 transitions. Second operand 11 states. [2020-10-12 18:34:49,260 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-12 18:34:49,716 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:34:50,037 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 149 [2020-10-12 18:34:51,257 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:34:51,499 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:34:54,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:34:54,452 INFO L93 Difference]: Finished difference Result 31921 states and 50376 transitions. [2020-10-12 18:34:54,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 18:34:54,453 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 85 [2020-10-12 18:34:54,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:34:54,536 INFO L225 Difference]: With dead ends: 31921 [2020-10-12 18:34:54,536 INFO L226 Difference]: Without dead ends: 21094 [2020-10-12 18:34:54,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=240, Invalid=752, Unknown=0, NotChecked=0, Total=992 [2020-10-12 18:34:54,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21094 states. [2020-10-12 18:34:55,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21094 to 18043. [2020-10-12 18:34:55,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18043 states. [2020-10-12 18:34:55,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18043 states to 18043 states and 28327 transitions. [2020-10-12 18:34:55,759 INFO L78 Accepts]: Start accepts. Automaton has 18043 states and 28327 transitions. Word has length 85 [2020-10-12 18:34:55,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:34:55,759 INFO L479 AbstractCegarLoop]: Abstraction has 18043 states and 28327 transitions. [2020-10-12 18:34:55,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:34:55,759 INFO L276 IsEmpty]: Start isEmpty. Operand 18043 states and 28327 transitions. [2020-10-12 18:34:55,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-12 18:34:55,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:34:55,762 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] [2020-10-12 18:34:55,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 18:34:55,762 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:34:55,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:34:55,762 INFO L82 PathProgramCache]: Analyzing trace with hash 2094029766, now seen corresponding path program 1 times [2020-10-12 18:34:55,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:34:55,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190536134] [2020-10-12 18:34:55,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:34:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:34:55,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:55,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:55,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:55,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:34:56,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:00,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:00,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 18:35:00,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:35:00,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 18:35:00,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:00,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:35:00,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-12 18:35:00,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 18:35:00,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:00,948 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:35:00,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:35:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:00,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:00,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:00,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:35:00,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:00,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:35:00,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:00,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:00,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:00,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:00,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:00,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:35:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:00,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:00,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:00,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 18:35:00,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:00,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:35:00,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:00,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:00,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:00,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:35:00,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:01,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:35:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:01,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:01,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:01,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:35:01,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:01,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:35:01,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:01,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:01,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:01,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:35:01,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:01,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 18:35:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:01,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:01,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:01,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:01,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:01,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:35:01,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:01,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:01,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:01,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:01,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:01,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:35:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:01,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:01,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:01,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:01,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:01,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:35:01,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:01,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:35:01,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:01,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:35:01,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:01,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:35:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:01,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:01,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:01,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 18:35:01,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:01,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:35:01,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:01,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:35:01,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:35:01,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:35:01,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:01,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:35:01,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190536134] [2020-10-12 18:35:01,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:35:01,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:35:01,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521657351] [2020-10-12 18:35:01,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:35:01,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:35:01,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:35:01,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:35:01,210 INFO L87 Difference]: Start difference. First operand 18043 states and 28327 transitions. Second operand 13 states. [2020-10-12 18:35:01,414 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:35:01,879 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-12 18:35:02,041 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-12 18:35:02,873 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:35:03,548 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-12 18:35:05,080 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:35:08,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:35:08,294 INFO L93 Difference]: Finished difference Result 50728 states and 79839 transitions. [2020-10-12 18:35:08,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-12 18:35:08,295 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 85 [2020-10-12 18:35:08,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:35:08,424 INFO L225 Difference]: With dead ends: 50728 [2020-10-12 18:35:08,425 INFO L226 Difference]: Without dead ends: 32897 [2020-10-12 18:35:08,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=520, Invalid=1736, Unknown=0, NotChecked=0, Total=2256 [2020-10-12 18:35:08,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32897 states. [2020-10-12 18:35:10,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32897 to 28501. [2020-10-12 18:35:10,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28501 states. [2020-10-12 18:35:10,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28501 states to 28501 states and 45022 transitions. [2020-10-12 18:35:10,376 INFO L78 Accepts]: Start accepts. Automaton has 28501 states and 45022 transitions. Word has length 85 [2020-10-12 18:35:10,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:35:10,376 INFO L479 AbstractCegarLoop]: Abstraction has 28501 states and 45022 transitions. [2020-10-12 18:35:10,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:35:10,376 INFO L276 IsEmpty]: Start isEmpty. Operand 28501 states and 45022 transitions. [2020-10-12 18:35:10,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-12 18:35:10,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:35:10,378 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] [2020-10-12 18:35:10,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 18:35:10,379 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:35:10,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:35:10,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1870664957, now seen corresponding path program 1 times [2020-10-12 18:35:10,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:35:10,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854577706] [2020-10-12 18:35:10,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:35:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:10,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:10,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:10,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:10,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:10,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:10,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:10,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:10,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:10,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:10,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:15,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:15,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-12 18:35:15,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 18:35:15,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:35:15,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:15,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:35:15,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-12 18:35:15,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 18:35:15,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:15,569 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:35:15,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:35:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:15,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:15,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:15,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:35:15,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:15,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:35:15,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:15,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:15,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:15,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:15,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:15,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:35:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:15,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:15,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:15,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 18:35:15,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:15,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:35:15,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:15,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:35:15,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:15,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 18:35:15,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:15,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:35:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:15,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:15,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:15,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:35:15,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:15,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:35:15,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:15,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:35:15,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:15,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:35:15,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:15,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 18:35:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:15,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:15,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:15,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:35:15,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:15,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:35:15,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:15,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:35:15,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:15,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:35:15,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:15,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-12 18:35:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:15,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:15,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:15,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:35:15,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:15,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:35:15,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:35:15,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:15,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:15,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:35:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:15,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:15,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:15,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:35:15,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:15,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:35:15,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:15,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:15,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:35:15,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:15,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:15,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:35:15,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854577706] [2020-10-12 18:35:15,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:35:15,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:35:15,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643920188] [2020-10-12 18:35:15,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:35:15,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:35:15,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:35:15,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:35:15,753 INFO L87 Difference]: Start difference. First operand 28501 states and 45022 transitions. Second operand 9 states. [2020-10-12 18:35:15,916 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:35:17,737 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:35:19,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:35:19,410 INFO L93 Difference]: Finished difference Result 66782 states and 104494 transitions. [2020-10-12 18:35:19,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 18:35:19,411 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2020-10-12 18:35:19,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:35:19,543 INFO L225 Difference]: With dead ends: 66782 [2020-10-12 18:35:19,543 INFO L226 Difference]: Without dead ends: 38391 [2020-10-12 18:35:19,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2020-10-12 18:35:19,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38391 states. [2020-10-12 18:35:23,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38391 to 32645. [2020-10-12 18:35:23,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32645 states. [2020-10-12 18:35:23,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32645 states to 32645 states and 51238 transitions. [2020-10-12 18:35:23,101 INFO L78 Accepts]: Start accepts. Automaton has 32645 states and 51238 transitions. Word has length 86 [2020-10-12 18:35:23,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:35:23,101 INFO L479 AbstractCegarLoop]: Abstraction has 32645 states and 51238 transitions. [2020-10-12 18:35:23,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:35:23,102 INFO L276 IsEmpty]: Start isEmpty. Operand 32645 states and 51238 transitions. [2020-10-12 18:35:23,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-12 18:35:23,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:35:23,103 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] [2020-10-12 18:35:23,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 18:35:23,104 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:35:23,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:35:23,104 INFO L82 PathProgramCache]: Analyzing trace with hash 2141098349, now seen corresponding path program 1 times [2020-10-12 18:35:23,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:35:23,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480012518] [2020-10-12 18:35:23,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:35:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:23,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:23,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:23,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:23,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:23,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:23,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:23,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:23,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:25,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:25,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:25,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:28,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:28,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-12 18:35:28,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 18:35:28,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:35:28,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:28,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:35:28,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-12 18:35:28,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:35:28,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:28,292 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:35:28,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:35:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:28,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:28,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:28,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:35:28,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:28,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:35:28,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:28,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:28,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:28,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:35:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:28,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:28,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:28,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 18:35:28,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:28,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:35:28,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:28,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:35:28,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:28,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:35:28,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:28,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:35:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:28,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:28,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:28,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:35:28,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:28,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:35:28,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:28,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:35:28,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:28,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:35:28,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:28,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 18:35:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:28,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:28,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:28,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:35:28,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:28,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:35:28,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:28,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:35:28,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:28,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:35:28,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:28,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-12 18:35:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:28,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:28,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:28,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:35:28,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:28,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:35:28,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:28,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:35:28,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:28,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:35:28,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:28,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 18:35:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:28,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:28,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:28,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:35:28,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:28,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:35:28,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:28,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:28,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:35:28,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:28,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:28,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:35:28,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480012518] [2020-10-12 18:35:28,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:35:28,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:35:28,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338144798] [2020-10-12 18:35:28,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:35:28,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:35:28,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:35:28,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:35:28,490 INFO L87 Difference]: Start difference. First operand 32645 states and 51238 transitions. Second operand 9 states. [2020-10-12 18:35:28,662 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:35:30,460 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-12 18:35:32,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:35:32,845 INFO L93 Difference]: Finished difference Result 88993 states and 140480 transitions. [2020-10-12 18:35:32,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 18:35:32,848 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-10-12 18:35:32,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:35:33,097 INFO L225 Difference]: With dead ends: 88993 [2020-10-12 18:35:33,098 INFO L226 Difference]: Without dead ends: 56528 [2020-10-12 18:35:33,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2020-10-12 18:35:33,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56528 states. [2020-10-12 18:35:36,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56528 to 46926. [2020-10-12 18:35:36,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46926 states. [2020-10-12 18:35:36,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46926 states to 46926 states and 72782 transitions. [2020-10-12 18:35:36,107 INFO L78 Accepts]: Start accepts. Automaton has 46926 states and 72782 transitions. Word has length 88 [2020-10-12 18:35:36,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:35:36,107 INFO L479 AbstractCegarLoop]: Abstraction has 46926 states and 72782 transitions. [2020-10-12 18:35:36,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:35:36,107 INFO L276 IsEmpty]: Start isEmpty. Operand 46926 states and 72782 transitions. [2020-10-12 18:35:36,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-12 18:35:36,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:35:36,109 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 18:35:36,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 18:35:36,109 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:35:36,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:35:36,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1635644174, now seen corresponding path program 1 times [2020-10-12 18:35:36,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:35:36,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620380775] [2020-10-12 18:35:36,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:35:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:36,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:36,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:36,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:36,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:37,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:37,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:37,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:37,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:37,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:38,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:38,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:41,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:41,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 18:35:41,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-12 18:35:41,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5090 [2020-10-12 18:35:41,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:41,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:35:41,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-12 18:35:41,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 18:35:41,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:41,402 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-12 18:35:41,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:35:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:41,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:41,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:41,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:35:41,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:41,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:35:41,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:41,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:35:41,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:41,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:35:41,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:41,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:35:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:41,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:41,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:41,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 18:35:41,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:41,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:35:41,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:35:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 18:35:41,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:41,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:35:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:41,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:41,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:41,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:35:41,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:41,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:35:41,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:35:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:35:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:35:41,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:41,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 18:35:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:41,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:41,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:41,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:35:41,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:41,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:35:41,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:41,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:35:41,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:41,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:35:41,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:41,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-12 18:35:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:41,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:41,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:41,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:35:41,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:35:41,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:35:41,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:41,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:35:41,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:35:41,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:35:41,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:41,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:35:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:35:41,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:41,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:35:41,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:35:41,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:35:41,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:35:41,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:35:41,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:35:41,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:35:41,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:35:41,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:35:41,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:35:41,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:35:41,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1620380775] [2020-10-12 18:35:41,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:35:41,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:35:41,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708858678] [2020-10-12 18:35:41,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:35:41,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:35:41,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:35:41,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:35:41,601 INFO L87 Difference]: Start difference. First operand 46926 states and 72782 transitions. Second operand 10 states. [2020-10-12 18:35:41,768 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-12 18:35:42,517 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 147