/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_lcr.8.ufo.BOUNDED-16.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:48:49,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:48:49,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:48:49,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:48:49,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:48:49,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:48:49,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:48:49,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:48:49,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:48:49,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:48:49,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:48:49,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:48:49,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:48:49,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:48:49,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:48:49,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:48:49,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:48:49,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:48:49,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:48:49,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:48:49,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:48:49,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:48:49,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:48:49,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:48:49,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:48:49,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:48:49,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:48:49,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:48:49,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:48:49,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:48:49,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:48:49,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:48:49,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:48:49,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:48:49,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:48:49,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:48:49,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:48:49,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:48:49,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:48:49,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:48:49,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:48:49,423 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 18:48:49,461 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:48:49,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:48:49,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:48:49,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:48:49,464 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:48:49,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:48:49,464 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:48:49,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:48:49,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:48:49,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:48:49,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:48:49,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:48:49,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:48:49,467 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:48:49,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:48:49,467 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:48:49,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:48:49,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:48:49,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:48:49,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:48:49,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:48:49,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:48:49,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:48:49,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:48:49,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:48:49,469 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:48:49,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:48:49,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:48:49,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:48:49,470 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 18:48:49,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:48:49,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:48:49,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:48:49,763 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:48:49,763 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:48:49,764 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.8.ufo.BOUNDED-16.pals.c [2020-10-12 18:48:49,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78c5d738a/74f3039ecc7946e7974d7ceb938afa3a/FLAG5d9289637 [2020-10-12 18:48:50,327 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:48:50,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.8.ufo.BOUNDED-16.pals.c [2020-10-12 18:48:50,351 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78c5d738a/74f3039ecc7946e7974d7ceb938afa3a/FLAG5d9289637 [2020-10-12 18:48:50,658 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78c5d738a/74f3039ecc7946e7974d7ceb938afa3a [2020-10-12 18:48:50,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:48:50,670 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:48:50,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:48:50,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:48:50,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:48:50,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:48:50" (1/1) ... [2020-10-12 18:48:50,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750e1b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:50, skipping insertion in model container [2020-10-12 18:48:50,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:48:50" (1/1) ... [2020-10-12 18:48:50,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:48:50,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:48:51,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:48:51,241 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:48:51,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:48:51,322 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:48:51,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:51 WrapperNode [2020-10-12 18:48:51,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:48:51,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:48:51,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:48:51,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:48:51,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:51" (1/1) ... [2020-10-12 18:48:51,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:51" (1/1) ... [2020-10-12 18:48:51,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:51" (1/1) ... [2020-10-12 18:48:51,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:51" (1/1) ... [2020-10-12 18:48:51,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:51" (1/1) ... [2020-10-12 18:48:51,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:51" (1/1) ... [2020-10-12 18:48:51,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:51" (1/1) ... [2020-10-12 18:48:51,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:48:51,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:48:51,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:48:51,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:48:51,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:51" (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 18:48:51,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:48:51,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:48:51,485 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:48:51,485 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:48:51,485 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:48:51,485 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:48:51,485 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:48:51,486 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-12 18:48:51,487 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-12 18:48:51,487 INFO L138 BoogieDeclarations]: Found implementation of procedure node7 [2020-10-12 18:48:51,487 INFO L138 BoogieDeclarations]: Found implementation of procedure node8 [2020-10-12 18:48:51,487 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:48:51,488 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:48:51,488 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:48:51,488 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:48:51,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:48:51,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:48:51,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:48:51,489 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:48:51,489 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:48:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:48:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:48:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:48:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:48:51,490 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:48:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:48:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:48:51,491 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 18:48:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-12 18:48:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2020-10-12 18:48:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure node8 [2020-10-12 18:48:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:48:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:48:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:48:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:48:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:48:52,325 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:48:52,325 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:48:52,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:48:52 BoogieIcfgContainer [2020-10-12 18:48:52,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:48:52,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:48:52,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:48:52,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:48:52,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:48:50" (1/3) ... [2020-10-12 18:48:52,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309b9e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:48:52, skipping insertion in model container [2020-10-12 18:48:52,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:51" (2/3) ... [2020-10-12 18:48:52,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309b9e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:48:52, skipping insertion in model container [2020-10-12 18:48:52,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:48:52" (3/3) ... [2020-10-12 18:48:52,340 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.BOUNDED-16.pals.c [2020-10-12 18:48:52,351 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:48:52,359 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:48:52,373 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:48:52,398 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:48:52,398 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:48:52,398 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:48:52,398 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:48:52,399 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:48:52,399 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:48:52,399 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:48:52,399 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:48:52,423 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states. [2020-10-12 18:48:52,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-12 18:48:52,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:48:52,436 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 18:48:52,436 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:48:52,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:48:52,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1837959040, now seen corresponding path program 1 times [2020-10-12 18:48:52,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:48:52,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113465763] [2020-10-12 18:48:52,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:48:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:52,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:53,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:53,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 18:48:53,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:53,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 536 [2020-10-12 18:48:53,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:53,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:53,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 18:48:53,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:53,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:48:53,694 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:48:53,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:48:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:53,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:53,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:53,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:48:53,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:53,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:48:53,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:53,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:53,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:53,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:53,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:53,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:48:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:53,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:53,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:53,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:48:53,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:53,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:48:53,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:53,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:53,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:53,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:53,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:53,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:48:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:53,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:53,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:53,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:48:53,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:53,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:48:53,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:53,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:53,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:48:53,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:53,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:53,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:48:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:53,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:53,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:53,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:53,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:53,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:48:53,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:53,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:53,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:53,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:53,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:53,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 18:48:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:53,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:53,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:53,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:53,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:53,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:48:53,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:53,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:53,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:53,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:53,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:53,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:48:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:53,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:53,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:53,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:53,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:53,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:48:53,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:53,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:53,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:53,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:53,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:53,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 18:48:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:53,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:53,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:53,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:53,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:53,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:48:53,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:53,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:53,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:53,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:53,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:53,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:48:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:53,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:53,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:53,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:53,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:53,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:48:53,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:53,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:53,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:53,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:53,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:53,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 18:48:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:54,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:54,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:54,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:54,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:54,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:48:54,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:54,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:54,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:54,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:54,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:54,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:48:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:54,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:54,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:54,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:54,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:54,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:48:54,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:54,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:54,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:54,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:54,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:48:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:54,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:54,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:54,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:54,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:54,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:48:54,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:54,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:54,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:54,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:54,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:48:54,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:48:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:54,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:54,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:54,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:48:54,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:54,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:48:54,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:54,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:54,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:48:54,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:54,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:54,158 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 18:48:54,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113465763] [2020-10-12 18:48:54,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:48:54,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:48:54,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122946882] [2020-10-12 18:48:54,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:48:54,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:48:54,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:48:54,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:48:54,192 INFO L87 Difference]: Start difference. First operand 193 states. Second operand 11 states. [2020-10-12 18:48:56,030 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:56,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:48:56,401 INFO L93 Difference]: Finished difference Result 310 states and 467 transitions. [2020-10-12 18:48:56,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 18:48:56,404 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2020-10-12 18:48:56,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:48:56,418 INFO L225 Difference]: With dead ends: 310 [2020-10-12 18:48:56,419 INFO L226 Difference]: Without dead ends: 188 [2020-10-12 18:48:56,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:48:56,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-12 18:48:56,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-10-12 18:48:56,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-12 18:48:56,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 294 transitions. [2020-10-12 18:48:56,489 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 294 transitions. Word has length 88 [2020-10-12 18:48:56,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:48:56,489 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 294 transitions. [2020-10-12 18:48:56,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:48:56,490 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 294 transitions. [2020-10-12 18:48:56,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-12 18:48:56,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:48:56,495 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 18:48:56,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:48:56,495 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:48:56,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:48:56,496 INFO L82 PathProgramCache]: Analyzing trace with hash -73083518, now seen corresponding path program 1 times [2020-10-12 18:48:56,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:48:56,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913550220] [2020-10-12 18:48:56,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:48:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:56,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:57,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:57,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 18:48:57,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:57,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1039 [2020-10-12 18:48:57,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:57,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:48:57,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:48:57,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:48:57,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:57,834 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:48:57,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:48:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:57,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:57,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:57,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:48:57,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:57,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:48:57,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:57,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:57,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:57,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:57,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:57,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:48:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:57,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:57,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:57,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:48:57,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:57,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:48:57,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:57,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:57,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:48:57,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:57,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:48:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:57,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:57,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:57,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:48:57,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:57,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:48:57,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:57,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:57,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:48:57,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:48:57,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:57,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:48:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:58,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:58,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:58,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:58,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:58,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:48:58,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:58,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:58,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:58,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:58,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:58,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 18:48:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:58,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:58,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:58,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:58,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:58,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:48:58,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:58,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:58,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:58,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:58,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:58,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:48:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:58,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:58,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:58,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:58,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:58,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:48:58,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:58,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:58,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:58,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:58,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:58,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 18:48:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:58,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:58,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:58,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:58,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:58,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:48:58,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:58,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:58,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:58,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:58,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:58,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:48:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:58,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:58,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:58,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:58,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:58,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:48:58,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:58,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:58,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:58,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:58,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:58,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 18:48:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:58,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:58,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:58,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:58,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:58,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:48:58,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:58,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:58,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:58,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:58,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:58,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:48:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:58,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:58,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:58,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:58,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:58,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:48:58,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:58,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:58,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:58,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:58,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:58,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:48:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:58,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:58,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:58,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:58,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:58,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:48:58,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:58,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:58,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:48:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:58,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:58,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:58,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:48:58,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:58,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:48:58,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:58,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:58,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:48:58,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:58,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:58,453 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 18:48:58,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913550220] [2020-10-12 18:48:58,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:48:58,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 18:48:58,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081459478] [2020-10-12 18:48:58,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:48:58,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:48:58,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:48:58,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:48:58,457 INFO L87 Difference]: Start difference. First operand 188 states and 294 transitions. Second operand 17 states. [2020-10-12 18:48:58,717 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:48:58,935 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:48:59,261 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:48:59,495 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:49:02,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:49:02,407 INFO L93 Difference]: Finished difference Result 317 states and 479 transitions. [2020-10-12 18:49:02,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 18:49:02,407 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 88 [2020-10-12 18:49:02,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:49:02,412 INFO L225 Difference]: With dead ends: 317 [2020-10-12 18:49:02,412 INFO L226 Difference]: Without dead ends: 202 [2020-10-12 18:49:02,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=203, Invalid=609, Unknown=0, NotChecked=0, Total=812 [2020-10-12 18:49:02,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-12 18:49:02,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 188. [2020-10-12 18:49:02,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-12 18:49:02,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 233 transitions. [2020-10-12 18:49:02,442 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 233 transitions. Word has length 88 [2020-10-12 18:49:02,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:49:02,442 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 233 transitions. [2020-10-12 18:49:02,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:49:02,442 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 233 transitions. [2020-10-12 18:49:02,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-12 18:49:02,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:49:02,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:49:02,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:49:02,449 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:49:02,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:49:02,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1715184750, now seen corresponding path program 1 times [2020-10-12 18:49:02,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:49:02,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542873989] [2020-10-12 18:49:02,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:49:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:02,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:02,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:03,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:03,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:07,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:07,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 18:49:07,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:49:07,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-12 18:49:07,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:07,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-12 18:49:07,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:49:07,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-12 18:49:07,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:49:07,882 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:49:07,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:49:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:07,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:07,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:07,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:49:07,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:07,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:49:07,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:07,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:49:07,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:07,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:49:07,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:07,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:49:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:07,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:08,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:08,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 18:49:08,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:08,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-12 18:49:08,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:08,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:49:08,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:08,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 18:49:08,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:49:08,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:49:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:08,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:08,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:08,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:49:08,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:08,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:49:08,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:08,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:08,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:08,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:49:08,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:08,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:49:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:08,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:08,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:08,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:08,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:08,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:49:08,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:08,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:08,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:08,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:08,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:08,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:49:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:08,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:08,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:08,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:08,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:08,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:49:08,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:08,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:08,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:49:08,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:49:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:08,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:08,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:08,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:08,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:08,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:49:08,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:08,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:08,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:49:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:08,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:08,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:08,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:08,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:08,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:49:08,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:08,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:08,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:08,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:08,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:08,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 18:49:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:08,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:08,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:08,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:08,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:08,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:49:08,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:08,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:08,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:08,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:08,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:08,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:49:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:08,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:08,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:08,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:08,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:08,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 18:49:08,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:08,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:08,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:08,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:08,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:08,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 18:49:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:08,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:08,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:08,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:08,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:08,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:49:08,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:08,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:08,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 18:49:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:08,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:09,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:09,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:09,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:09,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:49:09,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:09,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:09,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 18:49:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:09,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:09,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:09,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:49:09,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:09,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:49:09,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:09,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:09,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:49:09,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:49:09,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:09,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:49:09,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542873989] [2020-10-12 18:49:09,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:49:09,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-10-12 18:49:09,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593598124] [2020-10-12 18:49:09,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-12 18:49:09,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:49:09,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-12 18:49:09,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2020-10-12 18:49:09,239 INFO L87 Difference]: Start difference. First operand 188 states and 233 transitions. Second operand 28 states. [2020-10-12 18:49:09,816 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-10-12 18:49:10,058 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 18:49:10,279 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:49:10,508 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 18:49:10,755 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:49:11,036 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:49:11,304 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:49:11,580 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 18:49:12,104 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2020-10-12 18:49:12,618 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-12 18:49:13,489 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-12 18:49:14,600 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-12 18:49:16,039 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 120 [2020-10-12 18:49:16,278 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:16,791 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:17,326 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:49:17,848 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-12 18:49:18,211 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:18,352 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:49:18,884 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:49:20,126 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-12 18:49:20,399 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:20,556 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:21,208 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:21,538 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:49:21,683 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:21,974 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:49:22,668 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 120 [2020-10-12 18:49:22,985 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:49:23,149 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:49:23,308 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:23,458 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:23,602 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:49:23,741 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:24,025 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:49:24,383 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:24,527 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:49:24,662 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:25,931 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-12 18:49:26,198 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 18:49:26,470 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 18:49:26,765 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:49:27,035 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:49:27,268 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:49:27,496 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:49:27,717 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:49:29,641 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:29,812 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:29,981 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:30,152 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:30,312 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:49:30,475 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:30,664 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:49:31,131 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:49:31,311 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:31,493 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:49:31,671 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:31,834 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:49:32,310 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:49:33,293 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:49:33,499 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:49:33,678 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:49:33,856 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:34,024 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:34,187 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:34,351 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:49:34,506 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:34,812 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:34,996 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:35,191 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:35,360 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:35,522 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:49:35,678 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:35,998 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:36,791 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:49:36,984 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:49:37,149 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:49:37,309 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:37,463 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:37,613 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:37,906 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:38,202 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:38,384 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:38,559 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:38,733 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:38,892 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:49:39,215 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:49:39,979 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:49:40,176 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:49:40,338 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:49:40,503 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:40,672 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:40,829 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:41,003 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:49:41,155 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:41,458 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:41,640 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:41,815 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:41,998 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:42,163 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:49:42,365 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:49:43,106 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:49:43,304 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:49:43,478 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:49:43,658 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:43,837 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:44,005 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:49:44,195 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:44,354 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:44,647 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:44,823 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:44,994 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:49:45,172 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:49:45,393 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:46,060 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:49:46,258 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:49:46,435 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:49:46,612 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:46,775 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:46,935 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:47,086 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:49:47,236 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:47,555 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:47,733 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:47,909 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:48,144 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:49:48,767 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:49:48,966 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:49:49,127 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:49:49,286 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:49,440 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:49,590 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:50,166 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:50,341 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:51,102 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 127 [2020-10-12 18:49:51,303 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 18:49:51,496 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:49:51,682 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:49:51,872 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:49:52,048 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:52,224 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:49:52,398 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:52,736 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:03,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:50:03,156 INFO L93 Difference]: Finished difference Result 2555 states and 4014 transitions. [2020-10-12 18:50:03,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 243 states. [2020-10-12 18:50:03,157 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 148 [2020-10-12 18:50:03,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:50:03,188 INFO L225 Difference]: With dead ends: 2555 [2020-10-12 18:50:03,188 INFO L226 Difference]: Without dead ends: 2446 [2020-10-12 18:50:03,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 28 SyntacticMatches, 7 SemanticMatches, 257 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27123 ImplicationChecksByTransitivity, 32.9s TimeCoverageRelationStatistics Valid=10291, Invalid=56531, Unknown=0, NotChecked=0, Total=66822 [2020-10-12 18:50:03,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2020-10-12 18:50:03,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 1994. [2020-10-12 18:50:03,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1994 states. [2020-10-12 18:50:03,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2835 transitions. [2020-10-12 18:50:03,488 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2835 transitions. Word has length 148 [2020-10-12 18:50:03,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:50:03,489 INFO L479 AbstractCegarLoop]: Abstraction has 1994 states and 2835 transitions. [2020-10-12 18:50:03,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-12 18:50:03,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2835 transitions. [2020-10-12 18:50:03,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-12 18:50:03,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:50:03,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:50:03,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:50:03,505 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:50:03,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:50:03,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1152204650, now seen corresponding path program 1 times [2020-10-12 18:50:03,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:50:03,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133777348] [2020-10-12 18:50:03,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:50:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:03,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:03,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:03,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:06,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:08,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:08,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:50:08,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:50:08,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 18:50:08,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:08,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-12 18:50:08,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:50:08,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-12 18:50:08,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:08,949 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:50:08,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:50:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:08,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:08,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:08,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:50:08,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:08,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:50:08,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:08,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:08,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:08,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:08,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:08,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:50:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:08,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:09,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:09,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 18:50:09,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:09,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-12 18:50:09,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:09,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:50:09,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:09,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 18:50:09,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:09,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:50:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:09,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:09,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:09,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:50:09,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:09,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:50:09,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:09,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:09,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:09,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:50:09,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:09,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:50:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:09,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:09,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:09,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:09,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:09,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:50:09,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:09,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:50:09,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:09,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:50:09,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:09,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:50:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:09,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:09,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:09,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:09,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:09,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:50:09,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:09,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:50:09,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:09,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:50:09,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:50:09,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:50:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:09,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:09,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:09,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:09,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:09,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:50:09,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:50:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:50:09,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:09,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:50:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:09,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:09,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:09,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:09,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:09,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:50:09,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:09,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:50:09,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:09,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:50:09,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:09,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 18:50:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:09,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:09,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:09,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:09,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:09,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:50:09,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:09,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:50:09,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:09,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:50:09,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:09,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:50:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:09,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:09,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:09,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:09,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:09,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:50:09,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:09,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:50:09,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:09,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:50:09,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:09,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 18:50:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:09,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:09,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:09,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:09,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:09,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:50:09,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:09,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:50:09,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:09,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:50:09,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:09,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 18:50:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:09,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:09,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:09,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:09,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:09,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:50:09,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:09,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:50:09,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:09,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:50:09,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:09,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 18:50:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:09,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:09,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:09,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:50:09,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:09,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:50:09,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:09,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:09,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:50:09,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:50:09,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:10,119 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 18:50:10,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133777348] [2020-10-12 18:50:10,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:50:10,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-10-12 18:50:10,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2176530] [2020-10-12 18:50:10,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-12 18:50:10,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:50:10,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-12 18:50:10,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2020-10-12 18:50:10,123 INFO L87 Difference]: Start difference. First operand 1994 states and 2835 transitions. Second operand 28 states. [2020-10-12 18:50:10,803 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 198 [2020-10-12 18:50:11,072 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:50:11,319 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:50:11,586 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 18:50:11,855 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:50:12,149 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 18:50:12,459 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-12 18:50:13,008 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 197 [2020-10-12 18:50:13,642 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 126 [2020-10-12 18:50:14,217 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 129 [2020-10-12 18:50:14,438 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:50:14,756 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:15,439 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 130 [2020-10-12 18:50:15,679 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:50:15,887 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:16,032 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:16,192 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:17,244 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 130 [2020-10-12 18:50:17,516 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 18:50:17,804 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:17,962 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:18,117 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:18,286 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:18,582 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:50:18,893 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:50:19,691 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 129 [2020-10-12 18:50:19,988 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-12 18:50:20,333 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:50:20,498 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:50:20,748 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:21,020 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:50:21,328 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:50:21,799 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:50:21,948 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:50:22,773 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 129 [2020-10-12 18:50:23,077 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-12 18:50:23,506 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:50:23,675 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:50:23,837 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:50:23,985 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:24,129 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:24,300 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:24,651 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:24,801 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:50:25,251 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:50:25,408 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:50:25,552 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:50:26,392 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 129 [2020-10-12 18:50:26,707 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 18:50:27,158 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 18:50:27,325 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:50:27,491 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:50:27,650 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:50:27,803 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:27,947 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:28,171 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-12 18:50:28,498 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:28,665 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:28,833 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:50:28,985 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:50:29,317 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:29,486 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:50:29,651 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:50:29,808 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:50:29,963 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:50:30,742 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 129 [2020-10-12 18:50:31,094 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-12 18:50:31,656 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:50:31,847 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 18:50:32,034 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:50:32,264 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:50:32,436 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:50:32,601 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:32,758 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:33,130 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 132 [2020-10-12 18:50:33,503 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:33,683 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:33,863 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:34,032 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:50:34,195 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:50:34,563 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:34,740 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:34,912 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:50:35,089 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:50:35,254 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:50:35,429 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:50:36,674 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 203 [2020-10-12 18:50:39,434 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 131 [2020-10-12 18:50:39,626 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 18:50:39,806 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:50:39,981 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:40,148 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:50:40,309 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:40,461 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:50:40,646 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:50:41,316 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:41,512 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:41,700 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:50:41,884 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:50:42,063 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:50:42,868 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 134 [2020-10-12 18:50:43,064 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:50:43,242 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 18:50:43,411 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:50:43,581 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:50:43,739 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:50:43,893 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:44,926 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:50:45,124 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:45,316 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:45,507 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:45,690 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:50:46,357 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 135 [2020-10-12 18:50:46,560 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-12 18:50:46,749 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-12 18:50:46,930 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:47,105 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:50:47,290 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:47,755 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:50:47,983 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:50:48,274 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:48,493 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:50:48,693 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:48,896 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:49,127 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:50:49,610 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 135 [2020-10-12 18:50:49,809 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-12 18:50:49,996 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-12 18:50:50,174 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:50,349 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:50:50,750 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:50:50,972 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:50:51,261 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:51,478 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:50:51,678 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:51,879 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:52,333 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 134 [2020-10-12 18:50:52,531 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:50:52,710 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 18:50:52,880 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:50:53,293 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:53,501 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:50:53,772 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:50:53,977 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:54,170 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:54,613 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 134 [2020-10-12 18:50:54,805 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:50:54,986 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 18:50:55,315 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:55,514 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:55,781 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:50:55,983 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:56,407 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 134 [2020-10-12 18:50:56,608 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 18:50:56,926 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:57,126 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:57,382 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:50:57,839 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 134 [2020-10-12 18:50:58,097 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:50:58,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:50:58,593 INFO L93 Difference]: Finished difference Result 5033 states and 7261 transitions. [2020-10-12 18:50:58,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2020-10-12 18:50:58,594 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 150 [2020-10-12 18:50:58,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:50:58,611 INFO L225 Difference]: With dead ends: 5033 [2020-10-12 18:50:58,611 INFO L226 Difference]: Without dead ends: 3118 [2020-10-12 18:50:58,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 27 SyntacticMatches, 7 SemanticMatches, 225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20466 ImplicationChecksByTransitivity, 35.6s TimeCoverageRelationStatistics Valid=7429, Invalid=43873, Unknown=0, NotChecked=0, Total=51302 [2020-10-12 18:50:58,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3118 states. [2020-10-12 18:50:58,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3118 to 2767. [2020-10-12 18:50:58,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2767 states. [2020-10-12 18:50:58,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2767 states to 2767 states and 3983 transitions. [2020-10-12 18:50:58,874 INFO L78 Accepts]: Start accepts. Automaton has 2767 states and 3983 transitions. Word has length 150 [2020-10-12 18:50:58,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:50:58,874 INFO L479 AbstractCegarLoop]: Abstraction has 2767 states and 3983 transitions. [2020-10-12 18:50:58,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-12 18:50:58,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2767 states and 3983 transitions. [2020-10-12 18:50:58,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-12 18:50:58,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:50:58,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:50:58,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:50:58,880 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:50:58,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:50:58,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1855060190, now seen corresponding path program 1 times [2020-10-12 18:50:58,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:50:58,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128659091] [2020-10-12 18:50:58,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:50:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:58,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:59,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:59,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:59,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:59,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:03,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:03,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:51:03,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:51:03,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 18:51:03,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:03,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-12 18:51:03,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 18:51:03,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:04,218 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:51:04,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:51:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:04,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:04,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:04,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:51:04,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:04,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:51:04,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:04,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:04,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:04,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:04,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:04,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:51:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:04,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:04,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:04,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 18:51:04,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:04,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 18:51:04,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:04,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:51:04,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:04,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:51:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:04,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:04,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:04,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:51:04,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:04,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:51:04,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:51:04,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:04,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:51:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:04,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:04,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:04,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:04,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:04,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:51:04,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:04,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:04,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:51:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:04,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:04,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:04,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:04,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:04,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:51:04,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:04,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:04,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:04,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:04,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:04,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:51:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:04,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:04,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:04,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:04,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:04,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:51:04,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:04,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:04,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:04,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:04,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:04,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:51:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:04,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:04,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:04,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:04,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:04,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:51:04,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:51:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:04,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:04,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 18:51:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:04,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:04,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:04,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:04,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:04,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:51:04,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:04,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:04,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:51:04,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:04,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:04,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:51:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:04,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:04,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:04,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:04,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:04,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:51:04,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:04,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:04,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:51:04,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:04,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:04,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 18:51:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:04,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:04,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:04,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:04,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:04,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:51:04,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:04,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:04,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:51:04,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:04,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:04,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 18:51:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:04,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:04,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:04,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:04,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:04,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:04,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:04,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:51:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:04,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:04,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 18:51:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:04,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:04,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:04,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:04,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:51:04,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:51:04,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:51:04,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:04,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:51:04,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:51:04,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:04,905 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 18:51:04,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128659091] [2020-10-12 18:51:04,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:51:04,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 18:51:04,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309114739] [2020-10-12 18:51:04,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 18:51:04,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:51:04,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 18:51:04,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:51:04,908 INFO L87 Difference]: Start difference. First operand 2767 states and 3983 transitions. Second operand 15 states. [2020-10-12 18:51:05,230 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 18:51:06,010 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:51:07,327 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:51:07,697 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 18:51:08,140 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 18:51:08,965 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:51:09,119 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:51:09,344 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:51:09,507 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:51:09,654 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:51:10,041 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:51:10,179 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:51:10,833 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:51:11,370 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:51:11,517 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:51:12,037 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:51:12,179 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:51:12,743 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:51:12,881 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:51:13,810 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:51:14,030 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:51:14,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:51:14,267 INFO L93 Difference]: Finished difference Result 12911 states and 18879 transitions. [2020-10-12 18:51:14,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-12 18:51:14,270 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 150 [2020-10-12 18:51:14,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:51:14,327 INFO L225 Difference]: With dead ends: 12911 [2020-10-12 18:51:14,327 INFO L226 Difference]: Without dead ends: 10223 [2020-10-12 18:51:14,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 686 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=578, Invalid=2178, Unknown=0, NotChecked=0, Total=2756 [2020-10-12 18:51:14,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10223 states. [2020-10-12 18:51:15,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10223 to 10217. [2020-10-12 18:51:15,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10217 states. [2020-10-12 18:51:15,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10217 states to 10217 states and 14686 transitions. [2020-10-12 18:51:15,225 INFO L78 Accepts]: Start accepts. Automaton has 10217 states and 14686 transitions. Word has length 150 [2020-10-12 18:51:15,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:51:15,226 INFO L479 AbstractCegarLoop]: Abstraction has 10217 states and 14686 transitions. [2020-10-12 18:51:15,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 18:51:15,226 INFO L276 IsEmpty]: Start isEmpty. Operand 10217 states and 14686 transitions. [2020-10-12 18:51:15,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-12 18:51:15,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:51:15,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:51:15,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:51:15,233 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:51:15,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:51:15,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1369544506, now seen corresponding path program 1 times [2020-10-12 18:51:15,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:51:15,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833339085] [2020-10-12 18:51:15,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:51:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:15,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:15,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:15,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:15,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:18,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:51:20,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:51:20,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:51:20,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-12 18:51:20,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:51:20,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-12 18:51:20,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:20,609 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:51:20,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:51:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:51:20,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:51:20,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:20,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:20,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:51:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 18:51:20,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 18:51:20,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:51:20,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:51:20,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:20,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:51:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:51:20,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:51:20,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:20,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:51:20,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:20,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:51:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:20,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:51:20,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:20,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:21,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:51:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:21,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:21,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:21,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:21,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:21,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:51:21,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:21,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:21,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:21,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:21,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:21,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:51:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:21,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:21,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:21,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:21,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:21,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:51:21,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:21,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:21,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:21,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:21,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:21,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:51:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:21,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:21,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:21,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:21,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:21,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:51:21,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:21,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:21,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:21,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:21,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:21,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 18:51:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:21,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:21,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:21,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:21,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:21,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:51:21,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:21,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:21,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:21,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:21,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:21,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:51:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:21,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:21,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:21,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:21,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:21,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:51:21,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:21,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:21,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:21,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 18:51:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:21,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:21,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:21,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:21,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:21,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:51:21,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:21,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:51:21,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:21,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:51:21,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:21,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 18:51:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:21,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:21,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:21,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:51:21,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:21,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:51:21,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:21,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:51:21,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:21,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:51:21,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:21,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 18:51:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:21,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:21,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:21,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:51:21,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:21,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:51:21,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:21,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:21,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:51:21,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:51:21,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:21,863 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 18:51:21,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833339085] [2020-10-12 18:51:21,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:51:21,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-10-12 18:51:21,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143446618] [2020-10-12 18:51:21,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-12 18:51:21,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:51:21,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-12 18:51:21,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2020-10-12 18:51:21,865 INFO L87 Difference]: Start difference. First operand 10217 states and 14686 transitions. Second operand 28 states. [2020-10-12 18:51:22,460 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-10-12 18:51:22,739 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 18:51:22,997 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 18:51:23,258 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:51:23,518 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:51:23,791 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 18:51:24,074 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:51:24,353 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 18:51:24,895 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2020-10-12 18:51:25,143 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-12 18:51:25,730 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2020-10-12 18:51:26,080 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 18:51:26,360 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:51:26,648 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:51:26,977 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:51:27,466 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 18:51:27,923 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2020-10-12 18:51:28,203 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:51:28,400 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:51:28,964 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2020-10-12 18:51:29,255 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:51:29,464 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:51:29,689 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:51:30,046 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:51:30,246 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:51:30,694 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2020-10-12 18:51:30,963 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 18:51:31,201 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:51:31,345 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:51:31,487 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:51:31,639 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:51:31,935 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:51:32,077 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:51:32,674 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2020-10-12 18:51:32,952 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:51:33,282 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:51:33,455 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:51:33,622 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:51:33,786 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:51:33,942 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:51:34,271 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:51:34,423 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:51:34,572 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:51:35,201 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2020-10-12 18:51:35,502 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 18:51:35,879 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:51:36,041 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:51:36,205 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:51:36,355 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:51:36,503 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:51:36,681 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:51:37,050 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:51:37,213 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:51:37,370 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:51:37,520 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:51:37,666 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:51:38,193 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2020-10-12 18:51:38,506 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 18:51:38,937 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:51:39,158 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:51:39,318 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:51:39,479 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:51:39,624 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:51:40,758 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-12 18:51:41,044 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-12 18:51:41,319 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 18:51:41,590 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 18:51:41,840 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:51:42,080 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:51:43,980 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:51:44,157 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:51:44,325 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:51:44,527 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:51:44,786 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:51:44,978 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:51:45,290 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:51:45,474 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:51:45,650 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:51:45,825 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:51:47,025 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:51:47,197 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:51:47,362 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:51:47,521 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:51:47,689 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:51:47,855 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:51:48,167 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:51:48,354 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:51:48,535 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:51:48,753 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:51:48,961 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:51:49,807 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:51:50,008 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:51:50,196 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:51:50,377 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:51:50,544 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:51:50,710 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:51:51,156 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:51:51,341 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:51:51,521 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:51:51,732 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:51:52,055 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:51:52,233 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:51:52,375 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-12 18:51:53,163 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:51:53,444 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:51:53,645 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:51:53,822 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:51:54,001 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:51:54,185 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:51:54,349 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:51:54,682 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:51:54,858 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:51:55,045 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:51:55,228 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:51:55,438 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:51:55,716 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:51:56,181 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:51:56,743 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:51:56,957 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:51:57,143 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:51:57,407 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:51:57,571 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:51:57,739 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:51:58,070 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:51:58,245 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:51:58,436 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:51:58,626 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:51:58,953 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:51:59,412 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:51:59,971 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:52:00,201 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-12 18:52:00,410 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 18:52:00,608 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 18:52:00,803 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:52:00,996 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:52:01,394 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:52:01,561 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:52:01,778 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:52:02,099 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:52:02,571 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:52:03,032 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:52:03,232 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:52:03,410 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:52:03,590 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:52:03,760 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:52:03,927 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:52:04,391 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:52:04,564 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:52:05,127 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:52:05,484 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:52:05,654 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:52:05,820 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:52:05,982 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:52:06,133 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:52:06,290 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:52:06,596 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:52:07,441 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:52:08,278 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:52:08,468 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:52:08,765 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:52:08,995 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:52:09,351 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:52:09,577 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:52:09,788 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:52:10,119 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:52:10,558 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:52:10,880 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:52:11,196 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:52:13,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:52:13,518 INFO L93 Difference]: Finished difference Result 21011 states and 31259 transitions. [2020-10-12 18:52:13,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2020-10-12 18:52:13,519 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 150 [2020-10-12 18:52:13,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:52:13,593 INFO L225 Difference]: With dead ends: 21011 [2020-10-12 18:52:13,593 INFO L226 Difference]: Without dead ends: 11349 [2020-10-12 18:52:13,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19927 ImplicationChecksByTransitivity, 33.8s TimeCoverageRelationStatistics Valid=7780, Invalid=43070, Unknown=0, NotChecked=0, Total=50850 [2020-10-12 18:52:13,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11349 states. [2020-10-12 18:52:14,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11349 to 10175. [2020-10-12 18:52:14,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10175 states. [2020-10-12 18:52:14,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10175 states to 10175 states and 14624 transitions. [2020-10-12 18:52:14,366 INFO L78 Accepts]: Start accepts. Automaton has 10175 states and 14624 transitions. Word has length 150 [2020-10-12 18:52:14,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:52:14,366 INFO L479 AbstractCegarLoop]: Abstraction has 10175 states and 14624 transitions. [2020-10-12 18:52:14,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-12 18:52:14,367 INFO L276 IsEmpty]: Start isEmpty. Operand 10175 states and 14624 transitions. [2020-10-12 18:52:14,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-12 18:52:14,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:14,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:52:14,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:52:14,371 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:14,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:14,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1090482990, now seen corresponding path program 1 times [2020-10-12 18:52:14,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:14,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357125248] [2020-10-12 18:52:14,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:14,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:14,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:14,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:15,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:16,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:19,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:19,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:52:19,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:52:19,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 18:52:19,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:19,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-12 18:52:19,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:52:19,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-12 18:52:19,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:19,708 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:52:19,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:52:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:19,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:19,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:19,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:52:19,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:19,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:52:19,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:19,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:19,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:19,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:19,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:19,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:52:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:19,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:19,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:19,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 18:52:19,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:19,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 18:52:19,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:19,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:52:19,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:19,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 18:52:19,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:52:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:52:20,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:52:20,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:20,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:20,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:52:20,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:52:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:20,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:52:20,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:20,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:20,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:20,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:52:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:20,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:52:20,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:20,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:20,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:20,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:52:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:20,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:52:20,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:20,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:20,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:20,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:52:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:20,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:52:20,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:20,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 18:52:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:20,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:52:20,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:20,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:20,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:20,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:52:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:20,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:52:20,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:20,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:20,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:20,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 18:52:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:52:20,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:52:20,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:52:20,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:20,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:52:20,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 18:52:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:20,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:52:20,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:52:20,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:20,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:52:20,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 18:52:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:20,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:20,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:20,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:20,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:20,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:20,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:20,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:20,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:52:20,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:52:20,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:20,820 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 18:52:20,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357125248] [2020-10-12 18:52:20,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:52:20,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-10-12 18:52:20,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781454981] [2020-10-12 18:52:20,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-12 18:52:20,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:52:20,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-12 18:52:20,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2020-10-12 18:52:20,822 INFO L87 Difference]: Start difference. First operand 10175 states and 14624 transitions. Second operand 28 states. [2020-10-12 18:52:21,526 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 195 [2020-10-12 18:52:21,828 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:52:22,113 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 18:52:22,405 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:52:22,703 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 18:52:23,097 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 18:52:23,667 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-10-12 18:52:24,219 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 194 [2020-10-12 18:52:24,819 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 123 [2020-10-12 18:52:25,015 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:52:25,475 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 126 [2020-10-12 18:52:25,753 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-12 18:52:25,979 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 125