/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-var-start-time.6.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:54:31,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:54:31,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:54:31,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:54:31,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:54:31,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:54:31,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:54:31,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:54:31,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:54:31,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:54:31,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:54:31,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:54:31,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:54:31,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:54:31,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:54:31,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:54:31,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:54:31,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:54:31,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:54:31,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:54:31,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:54:31,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:54:31,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:54:31,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:54:31,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:54:31,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:54:31,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:54:31,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:54:31,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:54:31,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:54:31,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:54:31,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:54:31,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:54:31,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:54:31,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:54:31,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:54:31,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:54:31,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:54:31,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:54:31,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:54:31,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:54:31,346 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 18:54:31,367 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:54:31,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:54:31,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:54:31,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:54:31,369 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:54:31,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:54:31,370 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:54:31,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:54:31,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:54:31,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:54:31,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:54:31,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:54:31,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:54:31,371 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:54:31,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:54:31,372 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:54:31,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:54:31,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:54:31,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:54:31,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:54:31,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:54:31,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:54:31,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:54:31,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:54:31,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:54:31,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:54:31,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:54:31,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:54:31,375 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:54:31,375 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 18:54:31,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:54:31,682 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:54:31,686 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:54:31,687 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:54:31,688 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:54:31,688 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c [2020-10-12 18:54:31,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc224ca96/e1f27394dbea47879c65f32864e7f6c0/FLAG38022d942 [2020-10-12 18:54:32,258 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:54:32,259 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c [2020-10-12 18:54:32,270 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc224ca96/e1f27394dbea47879c65f32864e7f6c0/FLAG38022d942 [2020-10-12 18:54:32,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc224ca96/e1f27394dbea47879c65f32864e7f6c0 [2020-10-12 18:54:32,600 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:54:32,602 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:54:32,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:54:32,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:54:32,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:54:32,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:54:32" (1/1) ... [2020-10-12 18:54:32,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63a45b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:32, skipping insertion in model container [2020-10-12 18:54:32,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:54:32" (1/1) ... [2020-10-12 18:54:32,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:54:32,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:54:32,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:54:33,014 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:54:33,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:54:33,134 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:54:33,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:33 WrapperNode [2020-10-12 18:54:33,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:54:33,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:54:33,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:54:33,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:54:33,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:33" (1/1) ... [2020-10-12 18:54:33,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:33" (1/1) ... [2020-10-12 18:54:33,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:33" (1/1) ... [2020-10-12 18:54:33,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:33" (1/1) ... [2020-10-12 18:54:33,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:33" (1/1) ... [2020-10-12 18:54:33,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:33" (1/1) ... [2020-10-12 18:54:33,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:33" (1/1) ... [2020-10-12 18:54:33,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:54:33,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:54:33,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:54:33,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:54:33,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:33" (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 18:54:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:54:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:54:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:54:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:54:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:54:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:54:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:54:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-12 18:54:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-12 18:54:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:54:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:54:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:54:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:54:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:54:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:54:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:54:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 18:54:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:54:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:54:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:54:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:54:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:54:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:54:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:54:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:54:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:54:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 18:54:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-12 18:54:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:54:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:54:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:54:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:54:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:54:34,030 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:54:34,030 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:54:34,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:54:34 BoogieIcfgContainer [2020-10-12 18:54:34,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:54:34,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:54:34,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:54:34,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:54:34,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:54:32" (1/3) ... [2020-10-12 18:54:34,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245800bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:54:34, skipping insertion in model container [2020-10-12 18:54:34,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:54:33" (2/3) ... [2020-10-12 18:54:34,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245800bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:54:34, skipping insertion in model container [2020-10-12 18:54:34,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:54:34" (3/3) ... [2020-10-12 18:54:34,047 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c [2020-10-12 18:54:34,058 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:54:34,066 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:54:34,081 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:54:34,107 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:54:34,107 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:54:34,108 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:54:34,108 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:54:34,108 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:54:34,108 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:54:34,109 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:54:34,109 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:54:34,134 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-10-12 18:54:34,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-12 18:54:34,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:54:34,148 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] [2020-10-12 18:54:34,148 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:54:34,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:54:34,156 INFO L82 PathProgramCache]: Analyzing trace with hash 383071194, now seen corresponding path program 1 times [2020-10-12 18:54:34,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:54:34,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118971833] [2020-10-12 18:54:34,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:54:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:34,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:34,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:34,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 18:54:34,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:34,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-10-12 18:54:34,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:34,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:34,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 18:54:34,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:34,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:54:35,076 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:54:35,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:35,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:35,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:35,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:35,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:35,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:54:35,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:35,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:35,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:35,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:35,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:35,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:35,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:35,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:35,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:35,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:35,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:35,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:35,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:35,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:54:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:35,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:35,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:35,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:35,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:35,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:35,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:35,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:35,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:54:35,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:35,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:35,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:54:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:35,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:35,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:35,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:35,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:35,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:54:35,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:35,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:35,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:54:35,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:35,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:35,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:54:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:35,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:35,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:35,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:35,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:35,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:54:35,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:35,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:35,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:35,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:35,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:35,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 18:54:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:35,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:35,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:35,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:35,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:35,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:54:35,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:35,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:35,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:35,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:35,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:35,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 18:54:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:35,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:35,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:35,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:35,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:35,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:54:35,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:35,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:35,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:35,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:35,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:35,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 18:54:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:35,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:35,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:35,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:35,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:35,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 18:54:35,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:35,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:35,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:35,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:35,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:35,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 18:54:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:35,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:35,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:35,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:35,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:35,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:35,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:35,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:35,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:35,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:35,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:35,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-12 18:54:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:35,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:35,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:35,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:35,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:35,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:35,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:35,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:35,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:54:35,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:35,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:35,425 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 18:54:35,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118971833] [2020-10-12 18:54:35,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:54:35,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:54:35,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090645822] [2020-10-12 18:54:35,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:54:35,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:35,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:54:35,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:54:35,454 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 9 states. [2020-10-12 18:54:37,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:54:37,026 INFO L93 Difference]: Finished difference Result 318 states and 482 transitions. [2020-10-12 18:54:37,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 18:54:37,028 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2020-10-12 18:54:37,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:54:37,042 INFO L225 Difference]: With dead ends: 318 [2020-10-12 18:54:37,043 INFO L226 Difference]: Without dead ends: 188 [2020-10-12 18:54:37,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:54:37,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-12 18:54:37,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 181. [2020-10-12 18:54:37,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-12 18:54:37,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 280 transitions. [2020-10-12 18:54:37,110 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 280 transitions. Word has length 75 [2020-10-12 18:54:37,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:54:37,110 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 280 transitions. [2020-10-12 18:54:37,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:54:37,111 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 280 transitions. [2020-10-12 18:54:37,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-12 18:54:37,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:54:37,115 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] [2020-10-12 18:54:37,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:54:37,115 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:54:37,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:54:37,116 INFO L82 PathProgramCache]: Analyzing trace with hash 584895128, now seen corresponding path program 1 times [2020-10-12 18:54:37,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:54:37,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610051414] [2020-10-12 18:54:37,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:54:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:37,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:37,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:37,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 18:54:37,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:37,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 801 [2020-10-12 18:54:37,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:37,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:54:37,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:54:37,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:54:37,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:38,155 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:54:38,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:38,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:38,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:38,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:38,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:38,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:54:38,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:38,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:38,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:38,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:38,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:38,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:38,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:38,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:38,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:38,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:38,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:54:38,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:38,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:38,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:38,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:54:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:38,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:38,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:38,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:38,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:38,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:54:38,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:38,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:38,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:54:38,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:38,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:38,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:54:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:38,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:38,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:38,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:38,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:38,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:38,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:54:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:38,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:38,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 18:54:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:38,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:38,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:38,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:38,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:38,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:38,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:38,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:38,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:38,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:38,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:38,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-12 18:54:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:38,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:38,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:38,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:38,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:38,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:38,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:38,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:38,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:38,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:38,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:38,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-12 18:54:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:38,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:38,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:38,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:38,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:38,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:38,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:38,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:38,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:38,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:38,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:38,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 18:54:38,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:38,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:38,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:38,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:38,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:38,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:38,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:38,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:38,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:38,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:38,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-12 18:54:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:38,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:38,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:38,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:38,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:38,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:54:38,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:38,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:38,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:54:38,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:38,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:38,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-12 18:54:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:38,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:38,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:38,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:38,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:38,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:54:38,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:38,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:38,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:54:38,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:38,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:38,486 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 18:54:38,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610051414] [2020-10-12 18:54:38,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:54:38,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 18:54:38,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350359612] [2020-10-12 18:54:38,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 18:54:38,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:38,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 18:54:38,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:54:38,490 INFO L87 Difference]: Start difference. First operand 181 states and 280 transitions. Second operand 15 states. [2020-10-12 18:54:38,716 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:54:38,892 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:54:39,173 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:54:39,371 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:54:41,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:54:41,364 INFO L93 Difference]: Finished difference Result 316 states and 474 transitions. [2020-10-12 18:54:41,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 18:54:41,370 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 75 [2020-10-12 18:54:41,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:54:41,373 INFO L225 Difference]: With dead ends: 316 [2020-10-12 18:54:41,373 INFO L226 Difference]: Without dead ends: 188 [2020-10-12 18:54:41,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2020-10-12 18:54:41,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-12 18:54:41,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 181. [2020-10-12 18:54:41,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-12 18:54:41,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 239 transitions. [2020-10-12 18:54:41,418 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 239 transitions. Word has length 75 [2020-10-12 18:54:41,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:54:41,419 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 239 transitions. [2020-10-12 18:54:41,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 18:54:41,419 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 239 transitions. [2020-10-12 18:54:41,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 18:54:41,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:54:41,427 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] [2020-10-12 18:54:41,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:54:41,428 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:54:41,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:54:41,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1332407966, now seen corresponding path program 1 times [2020-10-12 18:54:41,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:54:41,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574997310] [2020-10-12 18:54:41,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:54:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:41,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:41,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:41,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:41,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:42,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:46,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:46,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-12 18:54:46,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:54:46,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-12 18:54:46,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:46,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-12 18:54:46,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:54:46,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-12 18:54:46,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:54:46,723 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:54:46,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:54:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:46,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:46,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:46,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:54:46,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:46,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:54:46,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:46,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:54:46,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:46,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:54:46,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:46,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:54:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:46,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:46,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:46,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:54:46,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:46,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-12 18:54:46,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:46,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:54:46,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:46,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:54:46,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:46,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:54:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:46,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:46,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:46,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:54:46,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:46,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:54:46,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:54:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:54:46,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:47,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:54:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:47,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:47,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:47,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:54:47,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:47,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:54:47,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:47,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:47,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:47,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:54:47,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:47,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:54:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:47,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:47,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:47,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:47,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:47,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:54:47,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:47,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:47,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:47,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:47,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:47,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:54:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:47,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:47,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:47,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:47,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:47,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:54:47,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:47,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:47,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:47,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:47,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:47,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 18:54:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:47,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:47,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:47,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:47,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:47,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:54:47,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:47,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:47,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:47,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:54:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:47,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:47,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:47,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:47,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:47,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:54:47,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:47,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:47,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:47,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:47,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:47,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 18:54:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:47,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:47,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:47,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:54:47,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:47,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:54:47,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:47,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:54:47,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:54:47,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:54:47,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:54:47,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:54:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:54:47,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:54:47,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:54:47,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:54:47,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:54:47,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:54:47,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:54:47,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:54:47,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:54:47,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:54:47,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:54:47,643 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 18:54:47,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574997310] [2020-10-12 18:54:47,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:54:47,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-10-12 18:54:47,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490504528] [2020-10-12 18:54:47,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-12 18:54:47,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:54:47,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-12 18:54:47,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2020-10-12 18:54:47,650 INFO L87 Difference]: Start difference. First operand 181 states and 239 transitions. Second operand 23 states. [2020-10-12 18:54:47,929 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:54:48,138 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:54:48,332 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:54:48,531 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:54:48,738 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:54:48,947 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:54:55,608 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:54:55,808 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:54:56,046 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:54:56,288 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:54:56,476 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:54:56,658 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:55:04,466 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-12 18:55:07,728 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-12 18:55:08,115 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2020-10-12 18:55:14,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:55:14,742 INFO L93 Difference]: Finished difference Result 2210 states and 3465 transitions. [2020-10-12 18:55:14,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2020-10-12 18:55:14,743 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 115 [2020-10-12 18:55:14,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:55:14,768 INFO L225 Difference]: With dead ends: 2210 [2020-10-12 18:55:14,768 INFO L226 Difference]: Without dead ends: 2088 [2020-10-12 18:55:14,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10887 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=5066, Invalid=22656, Unknown=0, NotChecked=0, Total=27722 [2020-10-12 18:55:14,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2020-10-12 18:55:14,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 1687. [2020-10-12 18:55:14,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1687 states. [2020-10-12 18:55:14,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2491 transitions. [2020-10-12 18:55:14,978 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2491 transitions. Word has length 115 [2020-10-12 18:55:14,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:55:14,980 INFO L479 AbstractCegarLoop]: Abstraction has 1687 states and 2491 transitions. [2020-10-12 18:55:14,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-12 18:55:14,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2491 transitions. [2020-10-12 18:55:14,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-12 18:55:14,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:55:14,986 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] [2020-10-12 18:55:14,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:55:14,986 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:55:14,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:55:14,987 INFO L82 PathProgramCache]: Analyzing trace with hash -355350013, now seen corresponding path program 1 times [2020-10-12 18:55:14,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:55:14,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958812403] [2020-10-12 18:55:14,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:55:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:15,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:15,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:15,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:15,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:15,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:20,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:20,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-12 18:55:20,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:55:20,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-12 18:55:20,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:20,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:55:20,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-10-12 18:55:20,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:55:20,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:20,282 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:55:20,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:55:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:20,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:20,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:20,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:55:20,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:20,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:55:20,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:20,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:20,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:20,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:20,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:20,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:55:20,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:20,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:20,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:20,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:55:20,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:20,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:55:20,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:20,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:20,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:20,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:20,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:20,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:55:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:20,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:20,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:20,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:20,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:20,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:55:20,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:20,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:20,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:20,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:20,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:20,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:55:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:20,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:20,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:20,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:20,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:20,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:20,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:20,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:20,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:20,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:20,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:20,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:55:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:20,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:20,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:20,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:20,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:20,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:20,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:20,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:20,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:20,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:20,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:20,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:55:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:20,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:20,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:20,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:20,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:20,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:20,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:20,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:20,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:20,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:20,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:20,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 18:55:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:20,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:20,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:20,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:20,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:20,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:20,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:20,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:20,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:20,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:20,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:20,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:55:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:20,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:20,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:20,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:20,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:20,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:20,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:20,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:20,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 18:55:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:20,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:20,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:20,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:20,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:20,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:20,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:20,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:20,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:20,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:20,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:20,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:55:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:20,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:20,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:20,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:20,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:20,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:55:20,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:20,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:20,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:20,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:55:20,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:20,566 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 18:55:20,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958812403] [2020-10-12 18:55:20,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:55:20,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-12 18:55:20,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040229703] [2020-10-12 18:55:20,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 18:55:20,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:55:20,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 18:55:20,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-12 18:55:20,569 INFO L87 Difference]: Start difference. First operand 1687 states and 2491 transitions. Second operand 15 states. [2020-10-12 18:55:22,597 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:55:22,774 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:55:22,991 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:55:23,169 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:55:23,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:55:23,406 INFO L93 Difference]: Finished difference Result 1926 states and 2840 transitions. [2020-10-12 18:55:23,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 18:55:23,407 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 116 [2020-10-12 18:55:23,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:55:23,422 INFO L225 Difference]: With dead ends: 1926 [2020-10-12 18:55:23,422 INFO L226 Difference]: Without dead ends: 1924 [2020-10-12 18:55:23,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2020-10-12 18:55:23,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2020-10-12 18:55:23,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1750. [2020-10-12 18:55:23,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1750 states. [2020-10-12 18:55:23,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1750 states to 1750 states and 2554 transitions. [2020-10-12 18:55:23,571 INFO L78 Accepts]: Start accepts. Automaton has 1750 states and 2554 transitions. Word has length 116 [2020-10-12 18:55:23,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:55:23,572 INFO L479 AbstractCegarLoop]: Abstraction has 1750 states and 2554 transitions. [2020-10-12 18:55:23,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 18:55:23,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1750 states and 2554 transitions. [2020-10-12 18:55:23,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 18:55:23,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:55:23,581 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] [2020-10-12 18:55:23,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:55:23,581 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:55:23,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:55:23,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1448660826, now seen corresponding path program 1 times [2020-10-12 18:55:23,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:55:23,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242501069] [2020-10-12 18:55:23,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:55:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:23,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:23,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:23,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:23,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:24,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:28,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:28,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 18:55:28,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:55:28,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 18:55:28,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:28,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:28,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-12 18:55:28,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 18:55:28,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:28,823 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:55:28,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:55:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:28,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:28,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:28,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:55:28,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:28,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:55:28,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:28,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:28,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:28,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:28,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:28,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:55:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:28,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:28,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:28,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:55:28,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:28,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:55:28,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:28,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:28,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:28,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:55:28,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:28,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:55:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:28,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:28,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:28,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:28,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:28,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:28,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:28,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:28,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:55:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:28,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:28,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:28,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:28,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:28,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:55:28,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:28,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:28,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:28,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:28,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:28,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:55:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:28,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:28,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:28,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:28,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:28,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:55:28,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:28,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:28,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:28,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:28,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:28,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:55:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:28,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:28,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:28,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:28,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:28,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:55:28,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:28,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:28,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:28,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:55:28,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:29,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 18:55:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:29,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:29,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:29,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:29,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:29,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:29,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:29,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:29,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:29,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:29,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:29,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:55:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:29,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:29,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:29,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:29,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:29,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:29,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:29,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:29,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:29,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:29,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:29,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-12 18:55:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:29,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:29,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:29,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:29,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:29,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:29,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:29,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:29,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:29,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:29,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:29,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-12 18:55:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:29,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:29,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:29,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:29,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:29,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:29,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:29,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:29,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:55:29,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:29,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:29,134 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 18:55:29,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1242501069] [2020-10-12 18:55:29,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:55:29,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:55:29,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996421230] [2020-10-12 18:55:29,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:55:29,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:55:29,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:55:29,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:55:29,137 INFO L87 Difference]: Start difference. First operand 1750 states and 2554 transitions. Second operand 12 states. [2020-10-12 18:55:29,324 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:55:32,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:55:32,133 INFO L93 Difference]: Finished difference Result 5133 states and 7471 transitions. [2020-10-12 18:55:32,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 18:55:32,139 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2020-10-12 18:55:32,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:55:32,156 INFO L225 Difference]: With dead ends: 5133 [2020-10-12 18:55:32,157 INFO L226 Difference]: Without dead ends: 3442 [2020-10-12 18:55:32,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-12 18:55:32,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2020-10-12 18:55:32,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3271. [2020-10-12 18:55:32,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3271 states. [2020-10-12 18:55:32,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 3271 states and 4767 transitions. [2020-10-12 18:55:32,372 INFO L78 Accepts]: Start accepts. Automaton has 3271 states and 4767 transitions. Word has length 117 [2020-10-12 18:55:32,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:55:32,373 INFO L479 AbstractCegarLoop]: Abstraction has 3271 states and 4767 transitions. [2020-10-12 18:55:32,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:55:32,373 INFO L276 IsEmpty]: Start isEmpty. Operand 3271 states and 4767 transitions. [2020-10-12 18:55:32,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-12 18:55:32,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:55:32,377 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] [2020-10-12 18:55:32,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:55:32,378 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:55:32,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:55:32,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1326908818, now seen corresponding path program 1 times [2020-10-12 18:55:32,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:55:32,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117010677] [2020-10-12 18:55:32,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:55:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:32,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:32,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:32,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:32,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:33,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:37,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:37,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 18:55:37,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:55:37,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:55:37,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:37,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:37,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-12 18:55:37,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:55:37,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:37,602 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:55:37,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:55:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:37,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:37,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:37,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:55:37,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:37,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:55:37,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:37,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:37,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:37,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:37,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:37,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:55:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:37,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:37,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:37,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:55:37,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:37,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:55:37,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:37,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:37,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:37,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-12 18:55:37,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:37,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:55:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:37,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:37,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:37,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:37,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:37,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:55:37,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:37,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:37,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:37,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:37,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:37,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:55:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:37,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:37,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:37,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:37,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:37,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:55:37,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:37,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:37,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:37,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:37,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:37,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:55:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:37,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:37,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:37,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:37,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:37,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:55:37,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:37,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:37,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:37,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:55:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:37,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:37,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:37,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:37,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:37,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:55:37,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:37,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:37,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:37,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:37,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:37,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:55:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:37,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:37,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:37,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:37,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:37,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:55:37,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:37,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:55:37,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:37,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-12 18:55:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:37,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:37,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:37,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:37,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:37,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:55:37,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:37,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:37,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:37,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:37,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:37,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:55:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:37,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:37,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:37,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:37,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:37,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:55:37,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:37,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:37,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:55:37,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:37,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:37,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 18:55:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:37,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:37,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:37,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:37,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:37,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:37,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:55:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:37,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:38,017 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 18:55:38,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117010677] [2020-10-12 18:55:38,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:55:38,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:55:38,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022299601] [2020-10-12 18:55:38,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:55:38,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:55:38,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:55:38,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:55:38,024 INFO L87 Difference]: Start difference. First operand 3271 states and 4767 transitions. Second operand 12 states. [2020-10-12 18:55:38,278 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:55:41,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:55:41,445 INFO L93 Difference]: Finished difference Result 9665 states and 14007 transitions. [2020-10-12 18:55:41,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 18:55:41,446 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 118 [2020-10-12 18:55:41,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:55:41,476 INFO L225 Difference]: With dead ends: 9665 [2020-10-12 18:55:41,477 INFO L226 Difference]: Without dead ends: 6453 [2020-10-12 18:55:41,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-12 18:55:41,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6453 states. [2020-10-12 18:55:41,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6453 to 6139. [2020-10-12 18:55:41,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6139 states. [2020-10-12 18:55:41,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6139 states to 6139 states and 8908 transitions. [2020-10-12 18:55:41,858 INFO L78 Accepts]: Start accepts. Automaton has 6139 states and 8908 transitions. Word has length 118 [2020-10-12 18:55:41,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:55:41,859 INFO L479 AbstractCegarLoop]: Abstraction has 6139 states and 8908 transitions. [2020-10-12 18:55:41,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:55:41,859 INFO L276 IsEmpty]: Start isEmpty. Operand 6139 states and 8908 transitions. [2020-10-12 18:55:41,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-12 18:55:41,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:55:41,861 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] [2020-10-12 18:55:41,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:55:41,862 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:55:41,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:55:41,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1571254382, now seen corresponding path program 1 times [2020-10-12 18:55:41,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:55:41,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278249754] [2020-10-12 18:55:41,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:55:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:41,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:41,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:42,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:42,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:46,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:46,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 18:55:46,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:55:46,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 18:55:46,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:46,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:46,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:55:46,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 18:55:46,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:47,130 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:55:47,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:55:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:47,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:47,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:47,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:55:47,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:47,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:55:47,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:47,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:47,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:47,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:47,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:47,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:55:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:47,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:47,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:47,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:55:47,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:47,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 18:55:47,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:47,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:47,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:47,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 18:55:47,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:47,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:55:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:47,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:47,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:47,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:47,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:47,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:47,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:47,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:47,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:55:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:47,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:47,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:47,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:47,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:47,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:55:47,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:47,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:55:47,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:47,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:55:47,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:47,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:55:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:47,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:47,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:47,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:47,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:47,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:55:47,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:47,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:47,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:47,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:47,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:47,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:55:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:47,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:47,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:47,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:47,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:47,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:55:47,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:47,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:47,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:47,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:47,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:47,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:55:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:47,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:47,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:47,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:47,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:47,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:55:47,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:47,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:47,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:47,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:47,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:47,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:55:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:47,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:47,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:47,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:47,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:47,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:55:47,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:47,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:47,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:47,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:47,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:55:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:47,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:47,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:47,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:47,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:47,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:55:47,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:47,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:47,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:47,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:47,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:47,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:55:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:47,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:47,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:47,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:47,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:47,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:55:47,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:47,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:47,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:55:47,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:47,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:47,605 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 18:55:47,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278249754] [2020-10-12 18:55:47,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:55:47,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:55:47,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410399020] [2020-10-12 18:55:47,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:55:47,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:55:47,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:55:47,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:55:47,609 INFO L87 Difference]: Start difference. First operand 6139 states and 8908 transitions. Second operand 12 states. [2020-10-12 18:55:47,840 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:55:50,159 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:55:52,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:55:52,466 INFO L93 Difference]: Finished difference Result 23251 states and 33747 transitions. [2020-10-12 18:55:52,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 18:55:52,467 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 119 [2020-10-12 18:55:52,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:55:52,567 INFO L225 Difference]: With dead ends: 23251 [2020-10-12 18:55:52,567 INFO L226 Difference]: Without dead ends: 17171 [2020-10-12 18:55:52,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=262, Invalid=794, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 18:55:52,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17171 states. [2020-10-12 18:55:53,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17171 to 16227. [2020-10-12 18:55:53,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16227 states. [2020-10-12 18:55:53,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16227 states to 16227 states and 23648 transitions. [2020-10-12 18:55:53,548 INFO L78 Accepts]: Start accepts. Automaton has 16227 states and 23648 transitions. Word has length 119 [2020-10-12 18:55:53,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:55:53,549 INFO L479 AbstractCegarLoop]: Abstraction has 16227 states and 23648 transitions. [2020-10-12 18:55:53,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:55:53,549 INFO L276 IsEmpty]: Start isEmpty. Operand 16227 states and 23648 transitions. [2020-10-12 18:55:53,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-12 18:55:53,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:55:53,552 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] [2020-10-12 18:55:53,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:55:53,552 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:55:53,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:55:53,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1365657603, now seen corresponding path program 1 times [2020-10-12 18:55:53,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:55:53,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648019259] [2020-10-12 18:55:53,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:55:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:53,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:53,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:57,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:58,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:58,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-12 18:55:58,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:55:58,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 18:55:58,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:55:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:55:58,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 18:55:58,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:58,800 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:55:58,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:55:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:58,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:58,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:58,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:55:58,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:58,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:55:58,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:58,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:55:58,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:58,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:55:58,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:58,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:55:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:58,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:58,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:58,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:55:58,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:58,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 18:55:58,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:58,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:58,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:58,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 18:55:58,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:58,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:55:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:58,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:58,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:58,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:55:58,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:58,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:58,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:58,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:58,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:58,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:58,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:58,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:55:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:58,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:58,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:58,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:55:58,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:58,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:55:58,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:58,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:55:58,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:55:58,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:55:58,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:59,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:55:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:59,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:59,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:59,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:59,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:59,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:55:59,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:59,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:59,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:59,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:59,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:59,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-12 18:55:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:59,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:59,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:59,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:59,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:59,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:55:59,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:59,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:59,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:59,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:59,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:59,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:55:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:59,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:59,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:59,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:59,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:59,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:55:59,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:55:59,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:55:59,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 18:55:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:59,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:59,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:59,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:59,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:59,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:55:59,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:59,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:59,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:59,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:59,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 18:55:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:59,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:59,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:59,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:55:59,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:59,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:55:59,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:55:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:55:59,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:59,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 18:55:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:55:59,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:55:59,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:55:59,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:55:59,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:55:59,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:55:59,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:55:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:55:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:55:59,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:55:59,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:55:59,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:55:59,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648019259] [2020-10-12 18:55:59,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:55:59,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:55:59,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486492396] [2020-10-12 18:55:59,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:55:59,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:55:59,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:55:59,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:55:59,250 INFO L87 Difference]: Start difference. First operand 16227 states and 23648 transitions. Second operand 14 states. [2020-10-12 18:55:59,433 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:56:00,271 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:56:04,002 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:56:05,398 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-12 18:56:06,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:56:06,688 INFO L93 Difference]: Finished difference Result 35225 states and 51212 transitions. [2020-10-12 18:56:06,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-12 18:56:06,690 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 120 [2020-10-12 18:56:06,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:56:06,816 INFO L225 Difference]: With dead ends: 35225 [2020-10-12 18:56:06,816 INFO L226 Difference]: Without dead ends: 23667 [2020-10-12 18:56:06,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=392, Invalid=1500, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 18:56:06,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23667 states. [2020-10-12 18:56:07,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23667 to 22505. [2020-10-12 18:56:07,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22505 states. [2020-10-12 18:56:07,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22505 states to 22505 states and 32896 transitions. [2020-10-12 18:56:07,853 INFO L78 Accepts]: Start accepts. Automaton has 22505 states and 32896 transitions. Word has length 120 [2020-10-12 18:56:07,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:56:07,854 INFO L479 AbstractCegarLoop]: Abstraction has 22505 states and 32896 transitions. [2020-10-12 18:56:07,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:56:07,854 INFO L276 IsEmpty]: Start isEmpty. Operand 22505 states and 32896 transitions. [2020-10-12 18:56:07,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-12 18:56:07,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:56:07,858 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] [2020-10-12 18:56:07,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:56:07,859 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:56:07,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:56:07,859 INFO L82 PathProgramCache]: Analyzing trace with hash 601343028, now seen corresponding path program 1 times [2020-10-12 18:56:07,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:56:07,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201977193] [2020-10-12 18:56:07,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:56:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:07,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:07,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:08,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:08,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:09,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:11,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:12,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:12,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-12 18:56:12,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:56:12,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 18:56:12,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:12,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:56:12,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:56:12,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 18:56:12,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:13,115 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:56:13,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:56:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:13,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:13,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:13,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:56:13,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:13,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:56:13,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:13,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:13,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:13,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:13,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:13,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:56:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:13,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:13,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:13,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:56:13,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:13,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 18:56:13,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:13,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:56:13,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:13,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:56:13,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:13,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:56:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:13,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:13,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:13,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:56:13,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:13,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:13,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:13,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:13,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:13,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:56:13,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:13,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:56:13,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:13,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:13,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:13,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:56:13,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:13,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:56:13,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:13,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:13,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:13,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:56:13,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:13,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:56:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:13,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:13,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:13,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:13,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:13,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:56:13,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:13,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:13,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:13,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:56:13,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:13,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:56:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:13,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:13,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:13,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:56:13,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:13,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:56:13,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:13,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:13,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:13,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:56:13,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:13,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:56:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:13,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:13,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:13,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:56:13,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:13,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:56:13,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:13,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:13,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:13,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:56:13,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:13,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:56:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:13,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:13,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:13,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:56:13,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:13,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:56:13,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:56:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:56:13,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:13,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:56:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:13,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:13,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:13,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:13,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:13,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:56:13,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:13,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:13,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:13,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:56:13,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:13,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:56:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:13,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:13,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:13,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:56:13,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:13,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:56:13,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:13,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:13,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:56:13,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:56:13,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:13,685 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 18:56:13,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201977193] [2020-10-12 18:56:13,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:56:13,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-12 18:56:13,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19269112] [2020-10-12 18:56:13,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 18:56:13,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:56:13,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 18:56:13,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:56:13,687 INFO L87 Difference]: Start difference. First operand 22505 states and 32896 transitions. Second operand 22 states. [2020-10-12 18:56:14,178 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 167 [2020-10-12 18:56:14,403 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:56:14,620 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:56:14,847 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:56:15,078 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:56:15,309 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:56:15,695 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-12 18:56:16,134 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-10-12 18:56:16,404 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-12 18:56:16,790 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-10-12 18:56:17,540 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 167 [2020-10-12 18:56:17,759 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-10-12 18:56:18,061 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:56:18,497 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-10-12 18:56:18,802 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:56:19,141 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-12 18:56:19,484 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-10-12 18:56:20,024 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2020-10-12 18:56:20,574 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:56:20,724 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-12 18:56:20,918 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-12 18:56:22,326 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-12 18:56:22,940 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-12 18:56:23,309 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:56:23,580 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:56:24,916 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-12 18:56:25,096 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2020-10-12 18:56:25,417 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-10-12 18:56:26,170 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-12 18:56:26,349 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:56:26,554 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2020-10-12 18:56:27,403 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-12 18:56:27,638 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2020-10-12 18:56:28,189 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-12 18:56:28,910 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:56:29,244 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-12 18:56:29,611 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2020-10-12 18:56:30,028 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-12 18:56:30,589 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-12 18:56:31,658 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:56:31,966 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-12 18:56:32,466 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:56:32,871 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-12 18:56:33,826 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2020-10-12 18:56:34,339 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2020-10-12 18:56:34,762 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-12 18:56:36,045 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:56:36,442 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-12 18:56:36,854 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-12 18:56:38,038 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-12 18:56:38,250 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-12 18:56:38,603 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2020-10-12 18:56:39,160 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-12 18:56:39,363 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-12 18:56:39,697 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:56:40,356 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-12 18:56:40,584 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:56:40,858 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2020-10-12 18:56:41,655 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-12 18:56:41,892 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:56:42,263 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 18:56:42,486 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-10-12 18:56:43,141 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-10-12 18:56:43,372 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2020-10-12 18:56:44,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:56:44,782 INFO L93 Difference]: Finished difference Result 52559 states and 76595 transitions. [2020-10-12 18:56:44,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2020-10-12 18:56:44,783 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 120 [2020-10-12 18:56:44,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:56:44,890 INFO L225 Difference]: With dead ends: 52559 [2020-10-12 18:56:44,890 INFO L226 Difference]: Without dead ends: 31825 [2020-10-12 18:56:44,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 40 SyntacticMatches, 4 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7244 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=3312, Invalid=16710, Unknown=0, NotChecked=0, Total=20022 [2020-10-12 18:56:44,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31825 states. [2020-10-12 18:56:46,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31825 to 29045. [2020-10-12 18:56:46,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29045 states. [2020-10-12 18:56:46,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29045 states to 29045 states and 42628 transitions. [2020-10-12 18:56:46,383 INFO L78 Accepts]: Start accepts. Automaton has 29045 states and 42628 transitions. Word has length 120 [2020-10-12 18:56:46,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:56:46,383 INFO L479 AbstractCegarLoop]: Abstraction has 29045 states and 42628 transitions. [2020-10-12 18:56:46,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 18:56:46,383 INFO L276 IsEmpty]: Start isEmpty. Operand 29045 states and 42628 transitions. [2020-10-12 18:56:46,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-12 18:56:46,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:56:46,387 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] [2020-10-12 18:56:46,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:56:46,388 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:56:46,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:56:46,388 INFO L82 PathProgramCache]: Analyzing trace with hash 661006143, now seen corresponding path program 1 times [2020-10-12 18:56:46,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:56:46,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999838068] [2020-10-12 18:56:46,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:56:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:46,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:46,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:46,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:47,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:47,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:49,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-12 18:56:51,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:56:51,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 18:56:51,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:56:51,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:56:51,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 18:56:51,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:51,615 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:56:51,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:56:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:51,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:56:51,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:51,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:56:51,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:51,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:51,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:51,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:51,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:56:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:51,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:56:51,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:51,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:56:51,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:56:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 18:56:51,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:51,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:56:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:51,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:56:51,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:51,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:51,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:51,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:51,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:56:51,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:51,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:56:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:51,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:56:51,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:51,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:56:51,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:56:51,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:51,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:56:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:51,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:51,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:51,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:56:51,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:51,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:51,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:56:51,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:51,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:56:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:51,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:56:51,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:51,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:56:51,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:51,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:51,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:56:51,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:51,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:56:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:51,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:56:51,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:51,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:56:51,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:51,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:51,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:56:51,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:51,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:56:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:51,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:51,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:51,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:51,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:56:51,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:51,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:51,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:51,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:56:51,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:52,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:56:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:52,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:52,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:52,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:56:52,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:52,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:56:52,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:52,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:56:52,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:52,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:56:52,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:52,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:56:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:52,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:52,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:52,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:56:52,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:52,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:52,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:52,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:52,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:56:52,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:56:52,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:52,098 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 18:56:52,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999838068] [2020-10-12 18:56:52,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:56:52,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-12 18:56:52,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651958734] [2020-10-12 18:56:52,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 18:56:52,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:56:52,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 18:56:52,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:56:52,100 INFO L87 Difference]: Start difference. First operand 29045 states and 42628 transitions. Second operand 22 states. [2020-10-12 18:56:52,317 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:56:52,528 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:56:52,726 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:56:52,926 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:56:53,135 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:56:53,348 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:56:54,119 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:56:54,822 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:56:55,544 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-12 18:56:57,075 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:56:57,998 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:56:58,179 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:56:58,455 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:57:02,948 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:57:04,641 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:57:05,560 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:57:07,214 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:57:17,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:17,963 INFO L93 Difference]: Finished difference Result 59331 states and 90151 transitions. [2020-10-12 18:57:17,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2020-10-12 18:57:17,964 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 120 [2020-10-12 18:57:17,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:18,097 INFO L225 Difference]: With dead ends: 59331 [2020-10-12 18:57:18,097 INFO L226 Difference]: Without dead ends: 33853 [2020-10-12 18:57:18,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8332 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=3946, Invalid=17224, Unknown=0, NotChecked=0, Total=21170 [2020-10-12 18:57:18,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33853 states. [2020-10-12 18:57:19,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33853 to 28153. [2020-10-12 18:57:19,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28153 states. [2020-10-12 18:57:20,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28153 states to 28153 states and 41272 transitions. [2020-10-12 18:57:20,015 INFO L78 Accepts]: Start accepts. Automaton has 28153 states and 41272 transitions. Word has length 120 [2020-10-12 18:57:20,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:57:20,016 INFO L479 AbstractCegarLoop]: Abstraction has 28153 states and 41272 transitions. [2020-10-12 18:57:20,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 18:57:20,016 INFO L276 IsEmpty]: Start isEmpty. Operand 28153 states and 41272 transitions. [2020-10-12 18:57:20,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-12 18:57:20,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:57:20,018 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] [2020-10-12 18:57:20,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:57:20,018 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:57:20,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:57:20,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1125493818, now seen corresponding path program 1 times [2020-10-12 18:57:20,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:57:20,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463361352] [2020-10-12 18:57:20,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:57:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:20,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:20,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:20,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:20,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:20,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:23,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:25,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:25,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-12 18:57:25,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:57:25,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:57:25,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:25,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 18:57:25,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-12 18:57:25,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 18:57:25,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:25,271 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:25,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:25,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:25,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:25,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:25,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:25,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:57:25,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:25,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:25,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:25,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:25,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:25,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:25,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:25,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:25,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:57:25,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:25,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 18:57:25,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:25,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:57:25,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:25,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 18:57:25,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:25,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:57:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:25,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:25,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:25,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:25,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:25,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:57:25,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:25,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:25,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:25,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:25,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:25,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:57:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:25,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:25,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:25,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:57:25,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:25,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:57:25,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:25,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:57:25,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:25,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:57:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:25,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:25,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:25,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 18:57:25,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:25,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:57:25,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:25,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:57:25,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:25,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:25,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:25,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-12 18:57:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:25,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:25,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:25,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:57:25,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:25,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:57:25,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:57:25,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:25,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-12 18:57:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:25,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:25,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:25,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:57:25,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:25,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:57:25,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:57:25,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:25,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:57:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:25,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:25,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:25,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:25,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:25,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:57:25,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:25,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:25,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:25,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:25,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:25,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:57:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:25,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:25,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:25,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:25,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:25,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:57:25,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:25,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:25,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:25,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:25,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:25,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-12 18:57:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:25,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:25,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:25,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:57:25,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:25,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:25,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:25,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:25,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:57:25,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:57:25,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:25,801 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 18:57:25,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463361352] [2020-10-12 18:57:25,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:57:25,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-12 18:57:25,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415229919] [2020-10-12 18:57:25,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-12 18:57:25,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:25,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-12 18:57:25,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:57:25,803 INFO L87 Difference]: Start difference. First operand 28153 states and 41272 transitions. Second operand 22 states. [2020-10-12 18:57:26,041 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:57:26,261 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:57:26,463 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:57:26,939 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:57:27,161 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:57:27,381 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:57:28,181 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:57:31,008 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:57:31,264 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-12 18:57:31,498 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 18:57:37,123 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-12 18:57:38,382 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-12 18:57:39,881 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-12 18:57:51,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:51,413 INFO L93 Difference]: Finished difference Result 70659 states and 108899 transitions. [2020-10-12 18:57:51,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2020-10-12 18:57:51,415 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 120 [2020-10-12 18:57:51,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:51,654 INFO L225 Difference]: With dead ends: 70659 [2020-10-12 18:57:51,654 INFO L226 Difference]: Without dead ends: 61177 [2020-10-12 18:57:51,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7939 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=3850, Invalid=16172, Unknown=0, NotChecked=0, Total=20022 [2020-10-12 18:57:51,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61177 states. [2020-10-12 18:57:55,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61177 to 51053. [2020-10-12 18:57:55,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51053 states. [2020-10-12 18:57:55,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51053 states to 51053 states and 74980 transitions. [2020-10-12 18:57:55,573 INFO L78 Accepts]: Start accepts. Automaton has 51053 states and 74980 transitions. Word has length 120 [2020-10-12 18:57:55,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:57:55,574 INFO L479 AbstractCegarLoop]: Abstraction has 51053 states and 74980 transitions. [2020-10-12 18:57:55,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-12 18:57:55,574 INFO L276 IsEmpty]: Start isEmpty. Operand 51053 states and 74980 transitions. [2020-10-12 18:57:55,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-12 18:57:55,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:57:55,577 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] [2020-10-12 18:57:55,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:57:55,577 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:57:55,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:57:55,578 INFO L82 PathProgramCache]: Analyzing trace with hash 2141168337, now seen corresponding path program 1 times [2020-10-12 18:57:55,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:57:55,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152510523] [2020-10-12 18:57:55,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:57:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:55,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:55,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:55,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:56,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:56,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:56,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:00,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:00,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-12 18:58:00,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:58:00,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:58:00,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:00,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:58:00,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:58:00,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 18:58:00,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:00,889 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:58:00,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:58:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:00,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:00,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:00,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:58:00,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:00,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:58:00,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:00,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:00,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:00,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:58:00,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:00,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:58:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:00,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:00,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:00,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-12 18:58:00,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:00,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:58:00,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:00,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:58:00,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:00,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 18:58:00,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:00,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-12 18:58:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:00,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:00,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:00,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:58:00,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:00,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:58:00,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:00,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:00,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:00,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:58:00,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:00,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-12 18:58:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:00,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:01,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:01,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:58:01,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:01,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:58:01,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:01,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:58:01,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:01,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:58:01,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:01,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-12 18:58:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:01,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:01,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:01,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:01,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:01,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:58:01,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:01,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:01,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:58:01,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:01,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:01,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 18:58:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:01,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:01,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:01,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:58:01,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:01,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:58:01,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:01,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:01,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:58:01,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:01,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:01,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:58:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:01,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:01,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:01,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:58:01,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:01,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:58:01,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:58:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:01,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:01,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-12 18:58:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:01,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:01,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:01,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:01,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:01,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:58:01,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:01,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:01,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:58:01,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:01,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:01,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-12 18:58:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:01,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:01,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:01,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:01,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:01,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:58:01,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:01,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:01,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:58:01,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:01,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:01,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-12 18:58:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:01,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:01,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:01,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:58:01,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:01,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:58:01,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:01,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:01,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:58:01,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:01,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:01,226 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 18:58:01,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152510523] [2020-10-12 18:58:01,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:58:01,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:58:01,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891750004] [2020-10-12 18:58:01,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:58:01,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:58:01,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:58:01,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:58:01,228 INFO L87 Difference]: Start difference. First operand 51053 states and 74980 transitions. Second operand 16 states. [2020-10-12 18:58:01,624 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 163 [2020-10-12 18:58:01,839 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:58:02,545 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 165 [2020-10-12 18:58:02,958 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 167 [2020-10-12 18:58:03,165 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-12 18:58:03,433 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 18:58:03,776 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 18:58:04,039 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 18:58:04,274 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 18:58:04,591 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-12 18:58:05,050 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-12 18:58:05,250 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-12 18:58:05,489 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-12 18:58:05,694 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-12 18:58:05,998 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-10-12 18:58:06,386 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87