/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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:17:03,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:17:03,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:17:03,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:17:03,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:17:03,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:17:03,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:17:03,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:17:03,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:17:03,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:17:03,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:17:03,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:17:03,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:17:03,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:17:03,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:17:03,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:17:03,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:17:03,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:17:03,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:17:03,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:17:03,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:17:03,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:17:03,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:17:03,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:17:03,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:17:03,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:17:03,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:17:03,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:17:03,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:17:03,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:17:03,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:17:03,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:17:03,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:17:03,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:17:03,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:17:03,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:17:03,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:17:03,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:17:03,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:17:03,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:17:03,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:17:03,274 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 [2020-10-13 13:17:03,297 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:17:03,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:17:03,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:17:03,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:17:03,299 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:17:03,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:17:03,299 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:17:03,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:17:03,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:17:03,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:17:03,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:17:03,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:17:03,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:17:03,301 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:17:03,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:17:03,301 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:17:03,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:17:03,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:17:03,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:17:03,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:17:03,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:17:03,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:17:03,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:17:03,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:17:03,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:17:03,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:17:03,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:17:03,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:17:03,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:17:03,304 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 13:17:03,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:17:03,642 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:17:03,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:17:03,647 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:17:03,648 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:17:03,648 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-13 13:17:03,727 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f731f6fbd/b917204e0f254662afabfbce45b2e169/FLAG840427a8d [2020-10-13 13:17:04,346 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:17:04,347 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-13 13:17:04,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f731f6fbd/b917204e0f254662afabfbce45b2e169/FLAG840427a8d [2020-10-13 13:17:04,588 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f731f6fbd/b917204e0f254662afabfbce45b2e169 [2020-10-13 13:17:04,598 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:17:04,600 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:17:04,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:17:04,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:17:04,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:17:04,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:17:04" (1/1) ... [2020-10-13 13:17:04,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217e3fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:04, skipping insertion in model container [2020-10-13 13:17:04,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:17:04" (1/1) ... [2020-10-13 13:17:04,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:17:04,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:17:05,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:17:05,163 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:17:05,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:17:05,297 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:17:05,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:05 WrapperNode [2020-10-13 13:17:05,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:17:05,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:17:05,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:17:05,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:17:05,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:05" (1/1) ... [2020-10-13 13:17:05,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:05" (1/1) ... [2020-10-13 13:17:05,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:05" (1/1) ... [2020-10-13 13:17:05,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:05" (1/1) ... [2020-10-13 13:17:05,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:05" (1/1) ... [2020-10-13 13:17:05,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:05" (1/1) ... [2020-10-13 13:17:05,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:05" (1/1) ... [2020-10-13 13:17:05,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:17:05,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:17:05,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:17:05,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:17:05,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:05" (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 [2020-10-13 13:17:05,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:17:05,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:17:05,486 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:17:05,486 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:17:05,487 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:17:05,487 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:17:05,487 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:17:05,489 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:17:05,489 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:17:05,489 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:17:05,489 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:17:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:17:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:17:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-13 13:17:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:17:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:17:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:17:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:17:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:17:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:17:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:17:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:17:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:17:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:17:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:17:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:17:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:17:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:17:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:17:06,843 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:17:06,844 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:17:06,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:17:06 BoogieIcfgContainer [2020-10-13 13:17:06,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:17:06,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:17:06,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:17:06,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:17:06,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:17:04" (1/3) ... [2020-10-13 13:17:06,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3392273e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:17:06, skipping insertion in model container [2020-10-13 13:17:06,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:05" (2/3) ... [2020-10-13 13:17:06,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3392273e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:17:06, skipping insertion in model container [2020-10-13 13:17:06,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:17:06" (3/3) ... [2020-10-13 13:17:06,860 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-13 13:17:06,872 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:17:06,881 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:17:06,899 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:17:06,932 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:17:06,933 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:17:06,933 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:17:06,933 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:17:06,933 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:17:06,934 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:17:06,934 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:17:06,934 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:17:06,961 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2020-10-13 13:17:06,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-13 13:17:06,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:17:06,980 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] [2020-10-13 13:17:06,980 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:17:06,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:17:06,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1386901003, now seen corresponding path program 1 times [2020-10-13 13:17:06,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:17:07,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576894248] [2020-10-13 13:17:07,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:17:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:07,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:08,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:08,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-13 13:17:08,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:08,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 544 [2020-10-13 13:17:08,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:08,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:08,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 13:17:08,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:08,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:17:08,523 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:17:08,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:17:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:08,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:08,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:08,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:17:08,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:08,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 13:17:08,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:08,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:08,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:17:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:08,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:08,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:08,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 13:17:08,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:08,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-13 13:17:08,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:08,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:08,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:08,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:08,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:08,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-13 13:17:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:08,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:08,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:08,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:17:08,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:08,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:17:08,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:08,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:08,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:17:08,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:08,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:08,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 13:17:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:08,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:08,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:08,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:08,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:08,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:17:08,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:08,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:08,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:08,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:08,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:08,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 13:17:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:08,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:08,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:08,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:08,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:08,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:17:08,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:08,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:08,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:08,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:08,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:08,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:17:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:08,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:08,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:08,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:08,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:08,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:08,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:08,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:08,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:08,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:08,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:08,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:17:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:09,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:09,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:09,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:09,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:09,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:09,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:09,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:09,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:09,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:09,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:09,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-13 13:17:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:09,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:09,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:09,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:09,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:09,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:17:09,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:09,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:09,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:09,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:09,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:09,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:17:09,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576894248] [2020-10-13 13:17:09,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:17:09,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 13:17:09,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005358439] [2020-10-13 13:17:09,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 13:17:09,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:17:09,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 13:17:09,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 13:17:09,071 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 7 states. [2020-10-13 13:17:10,635 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:17:10,989 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:17:11,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:17:11,434 INFO L93 Difference]: Finished difference Result 508 states and 855 transitions. [2020-10-13 13:17:11,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 13:17:11,436 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 104 [2020-10-13 13:17:11,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:17:11,454 INFO L225 Difference]: With dead ends: 508 [2020-10-13 13:17:11,454 INFO L226 Difference]: Without dead ends: 368 [2020-10-13 13:17:11,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:17:11,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-13 13:17:11,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 336. [2020-10-13 13:17:11,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-13 13:17:11,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 579 transitions. [2020-10-13 13:17:11,557 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 579 transitions. Word has length 104 [2020-10-13 13:17:11,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:17:11,558 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 579 transitions. [2020-10-13 13:17:11,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 13:17:11,558 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 579 transitions. [2020-10-13 13:17:11,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-13 13:17:11,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:17:11,564 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] [2020-10-13 13:17:11,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:17:11,565 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:17:11,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:17:11,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1810547725, now seen corresponding path program 1 times [2020-10-13 13:17:11,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:17:11,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95059555] [2020-10-13 13:17:11,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:17:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:11,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:12,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:12,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-13 13:17:12,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:12,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1286 [2020-10-13 13:17:12,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:12,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:17:12,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-13 13:17:12,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:12,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:13,398 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:17:13,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:17:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:13,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:13,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:13,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:17:13,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:13,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:17:13,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:13,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:13,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:13,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:13,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:13,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:17:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:13,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:13,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:13,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 13:17:13,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:13,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-13 13:17:13,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:13,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 13:17:13,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:13,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-13 13:17:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:13,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:13,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:13,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:17:13,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:13,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:17:13,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:13,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:13,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:17:13,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:17:13,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:13,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 13:17:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:13,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:13,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:13,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:13,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:13,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:17:13,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:13,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:13,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:13,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:13,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 13:17:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:13,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:13,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:13,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:13,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:13,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:13,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:13,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:13,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:13,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:13,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:14,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:17:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:14,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:14,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:14,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:14,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:14,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:17:14,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:14,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:14,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:14,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:14,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:14,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:17:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:14,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:14,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:14,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:14,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:14,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:17:14,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:14,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:14,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:14,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:14,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:14,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-13 13:17:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:14,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:14,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:14,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:14,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:14,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:17:14,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:14,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:14,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:14,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:17:14,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95059555] [2020-10-13 13:17:14,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:17:14,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-13 13:17:14,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032775766] [2020-10-13 13:17:14,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:17:14,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:17:14,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:17:14,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:17:14,165 INFO L87 Difference]: Start difference. First operand 336 states and 579 transitions. Second operand 13 states. [2020-10-13 13:17:16,458 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:17:16,821 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2020-10-13 13:17:17,288 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:17:17,648 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-13 13:17:20,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:17:20,572 INFO L93 Difference]: Finished difference Result 506 states and 847 transitions. [2020-10-13 13:17:20,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:17:20,573 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2020-10-13 13:17:20,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:17:20,580 INFO L225 Difference]: With dead ends: 506 [2020-10-13 13:17:20,581 INFO L226 Difference]: Without dead ends: 368 [2020-10-13 13:17:20,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:17:20,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-13 13:17:20,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 336. [2020-10-13 13:17:20,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-13 13:17:20,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 537 transitions. [2020-10-13 13:17:20,670 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 537 transitions. Word has length 104 [2020-10-13 13:17:20,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:17:20,672 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 537 transitions. [2020-10-13 13:17:20,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:17:20,672 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 537 transitions. [2020-10-13 13:17:20,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-13 13:17:20,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:17:20,678 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:17:20,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:17:20,679 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:17:20,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:17:20,680 INFO L82 PathProgramCache]: Analyzing trace with hash -348312971, now seen corresponding path program 1 times [2020-10-13 13:17:20,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:17:20,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999956653] [2020-10-13 13:17:20,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:17:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:20,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:21,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:21,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:22,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:23,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:25,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:25,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-13 13:17:25,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:17:25,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-13 13:17:25,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:25,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:25,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 13:17:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 13:17:25,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-13 13:17:26,366 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:17:26,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:17:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:26,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:26,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:26,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:17:26,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:26,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:17:26,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:26,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:17:26,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:17:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:26,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:26,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:26,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:17:26,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:26,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-13 13:17:26,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:26,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:26,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:26,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:17:26,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:26,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:17:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:26,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:26,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:26,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:17:26,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:26,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:17:26,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:26,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:17:26,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:26,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:17:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:26,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:26,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:26,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:26,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:26,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:17:26,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:26,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:26,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:26,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:26,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:26,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-13 13:17:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:26,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:26,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:26,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:26,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:26,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:26,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:26,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:26,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:26,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:26,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:26,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:17:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:26,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:26,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:26,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:26,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:26,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:26,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:26,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:26,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:26,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:26,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:26,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:17:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:26,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:26,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:26,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:26,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:26,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:17:26,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:26,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:26,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:26,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:26,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:26,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 13:17:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:26,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:26,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:26,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:26,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:26,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:17:26,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:26,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:26,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:26,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:26,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:26,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:17:26,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999956653] [2020-10-13 13:17:26,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:17:26,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:17:26,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382905472] [2020-10-13 13:17:26,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:17:26,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:17:26,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:17:26,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:17:26,919 INFO L87 Difference]: Start difference. First operand 336 states and 537 transitions. Second operand 10 states. [2020-10-13 13:17:27,315 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:17:29,221 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:17:30,715 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:17:31,760 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-13 13:17:32,302 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:17:32,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:17:32,541 INFO L93 Difference]: Finished difference Result 674 states and 1074 transitions. [2020-10-13 13:17:32,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:17:32,542 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 145 [2020-10-13 13:17:32,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:17:32,549 INFO L225 Difference]: With dead ends: 674 [2020-10-13 13:17:32,550 INFO L226 Difference]: Without dead ends: 542 [2020-10-13 13:17:32,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:17:32,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-10-13 13:17:32,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 469. [2020-10-13 13:17:32,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-10-13 13:17:32,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 745 transitions. [2020-10-13 13:17:32,607 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 745 transitions. Word has length 145 [2020-10-13 13:17:32,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:17:32,607 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 745 transitions. [2020-10-13 13:17:32,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:17:32,608 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 745 transitions. [2020-10-13 13:17:32,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-13 13:17:32,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:17:32,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:17:32,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:17:32,612 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:17:32,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:17:32,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1727718356, now seen corresponding path program 1 times [2020-10-13 13:17:32,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:17:32,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601167599] [2020-10-13 13:17:32,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:17:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:32,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:32,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:33,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:33,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:34,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:35,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:37,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:37,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 13:17:37,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:17:37,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-13 13:17:37,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:37,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:37,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-13 13:17:37,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-13 13:17:37,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:38,106 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:17:38,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:17:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:38,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:38,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:38,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:17:38,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:38,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:17:38,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:38,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:38,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:38,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:38,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:38,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:17:38,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:38,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:38,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:38,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:17:38,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:38,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-13 13:17:38,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:38,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:38,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:38,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 13:17:38,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:38,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:17:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:38,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:38,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:38,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:17:38,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:38,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:17:38,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:38,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:38,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:38,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:17:38,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:38,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:17:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:38,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:38,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:38,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:38,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:38,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:17:38,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:38,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:38,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:38,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:38,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:38,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:17:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:38,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:38,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:38,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:38,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:38,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:17:38,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:38,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:38,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:38,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:38,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:38,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 13:17:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:38,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:38,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:38,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:38,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:38,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:17:38,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:38,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:38,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:38,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:38,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:38,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 13:17:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:38,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:38,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:38,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:38,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:38,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:17:38,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:38,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:38,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:38,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:38,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:38,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-13 13:17:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:38,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:38,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:38,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:38,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:38,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:17:38,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:38,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:38,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:17:38,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:38,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:38,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:17:38,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601167599] [2020-10-13 13:17:38,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:17:38,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:17:38,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59796764] [2020-10-13 13:17:38,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:17:38,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:17:38,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:17:38,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:17:38,570 INFO L87 Difference]: Start difference. First operand 469 states and 745 transitions. Second operand 10 states. [2020-10-13 13:17:38,903 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:17:41,207 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:17:43,867 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-13 13:17:44,000 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:17:44,138 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:17:44,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:17:44,477 INFO L93 Difference]: Finished difference Result 1135 states and 1791 transitions. [2020-10-13 13:17:44,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:17:44,478 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2020-10-13 13:17:44,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:17:44,484 INFO L225 Difference]: With dead ends: 1135 [2020-10-13 13:17:44,484 INFO L226 Difference]: Without dead ends: 870 [2020-10-13 13:17:44,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:17:44,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2020-10-13 13:17:44,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 736. [2020-10-13 13:17:44,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 736 states. [2020-10-13 13:17:44,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1167 transitions. [2020-10-13 13:17:44,556 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1167 transitions. Word has length 148 [2020-10-13 13:17:44,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:17:44,557 INFO L479 AbstractCegarLoop]: Abstraction has 736 states and 1167 transitions. [2020-10-13 13:17:44,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:17:44,557 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1167 transitions. [2020-10-13 13:17:44,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-13 13:17:44,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:17:44,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:17:44,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:17:44,560 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:17:44,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:17:44,561 INFO L82 PathProgramCache]: Analyzing trace with hash -391598919, now seen corresponding path program 1 times [2020-10-13 13:17:44,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:17:44,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434608212] [2020-10-13 13:17:44,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:17:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:44,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:44,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:44,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:44,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:45,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:45,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:45,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:48,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:48,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:49,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:49,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-13 13:17:49,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:17:49,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-13 13:17:49,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:49,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:17:49,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 13:17:49,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:17:49,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:50,138 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:17:50,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:17:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:50,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:50,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:50,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:17:50,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:50,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:17:50,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:50,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:17:50,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:50,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:17:50,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:17:50,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:17:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:50,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:50,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:50,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:17:50,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:50,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-13 13:17:50,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:17:50,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:50,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 13:17:50,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:50,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:17:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:50,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:50,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:50,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:17:50,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:50,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:17:50,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:50,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:50,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:17:50,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:17:50,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:50,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:17:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:50,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:50,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:50,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:50,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:50,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:17:50,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:50,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:50,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:50,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:17:50,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:50,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:17:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:50,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:50,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:50,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:17:50,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:50,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 13:17:50,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:50,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:50,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:50,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:17:50,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:50,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:17:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:50,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:50,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:50,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:50,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:50,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 13:17:50,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:50,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:50,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:50,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:50,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:51,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:17:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:51,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:51,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:51,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:51,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:51,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 13:17:51,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:17:51,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:17:51,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:17:51,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:51,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:17:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:17:51,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:17:51,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:17:51,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:17:51,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:17:51,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:17:51,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:17:51,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:17:51,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:17:51,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:17:51,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:17:51,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:17:51,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434608212] [2020-10-13 13:17:51,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:17:51,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-13 13:17:51,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879263031] [2020-10-13 13:17:51,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-13 13:17:51,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:17:51,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-13 13:17:51,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2020-10-13 13:17:51,288 INFO L87 Difference]: Start difference. First operand 736 states and 1167 transitions. Second operand 17 states. [2020-10-13 13:17:51,784 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-13 13:17:54,018 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:17:54,389 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:17:54,736 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-13 13:17:54,996 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:17:55,519 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:17:56,432 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:17:57,301 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:17:57,876 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:17:58,045 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 13:17:58,805 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:17:58,949 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:17:59,921 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:18:00,291 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-13 13:18:00,949 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-13 13:18:01,292 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-13 13:18:03,425 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:18:03,576 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:03,886 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:18:04,925 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:18:05,828 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:18:05,991 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:06,253 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:18:06,662 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:18:06,927 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:18:08,057 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:18:08,214 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:08,424 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:08,643 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:18:08,814 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:18:08,968 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:18:10,111 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2020-10-13 13:18:10,284 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 13:18:10,438 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:18:10,688 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:18:12,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:18:12,138 INFO L93 Difference]: Finished difference Result 5499 states and 8873 transitions. [2020-10-13 13:18:12,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-10-13 13:18:12,139 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 151 [2020-10-13 13:18:12,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:18:12,173 INFO L225 Difference]: With dead ends: 5499 [2020-10-13 13:18:12,174 INFO L226 Difference]: Without dead ends: 4967 [2020-10-13 13:18:12,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2127 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=1330, Invalid=5312, Unknown=0, NotChecked=0, Total=6642 [2020-10-13 13:18:12,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4967 states. [2020-10-13 13:18:12,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4967 to 3943. [2020-10-13 13:18:12,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3943 states. [2020-10-13 13:18:12,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3943 states to 3943 states and 6298 transitions. [2020-10-13 13:18:12,505 INFO L78 Accepts]: Start accepts. Automaton has 3943 states and 6298 transitions. Word has length 151 [2020-10-13 13:18:12,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:18:12,506 INFO L479 AbstractCegarLoop]: Abstraction has 3943 states and 6298 transitions. [2020-10-13 13:18:12,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-13 13:18:12,506 INFO L276 IsEmpty]: Start isEmpty. Operand 3943 states and 6298 transitions. [2020-10-13 13:18:12,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-13 13:18:12,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:18:12,511 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:18:12,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:18:12,512 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:18:12,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:18:12,512 INFO L82 PathProgramCache]: Analyzing trace with hash 2059106921, now seen corresponding path program 1 times [2020-10-13 13:18:12,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:18:12,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750644307] [2020-10-13 13:18:12,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:18:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:12,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:12,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:12,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:12,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:13,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:13,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:13,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:17,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:17,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-13 13:18:17,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:18:17,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-13 13:18:17,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:17,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:18:17,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-13 13:18:17,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 13:18:17,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:18,046 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:18:18,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:18:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:18,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:18,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:18,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:18:18,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:18,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:18:18,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:18,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:18,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:18,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:18,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:18:18,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:18:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:18,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:18,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:18,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:18:18,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:18,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-13 13:18:18,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:18:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 13:18:18,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:18:18,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:18:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:18,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:18,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:18,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:18:18,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:18,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:18:18,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:18,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:18,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:18,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:18:18,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:18,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:18:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:18,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:18,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:18,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:18,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:18,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:18:18,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:18,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:18,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:18:18,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:18:18,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:18:18,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:18:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:18,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:18,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:18,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:18,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:18,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:18:18,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:18,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:18,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:18,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:18:18,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:18:18,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:18:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:18,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:18,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:18,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:18:18,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:18,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:18:18,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:18,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:18,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:18,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:18:18,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:18:18,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:18:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:18,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:18,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:18,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:18:18,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:18,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:18:18,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:18,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:18,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:18,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:18:18,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:18:18,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:18:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:18,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:18,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:18,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:18:18,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:18,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:18:18,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:18,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:18,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:18:18,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:18:18,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:18:18,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:18:18,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750644307] [2020-10-13 13:18:18,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:18:18,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:18:18,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990895868] [2020-10-13 13:18:18,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:18:18,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:18:18,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:18:18,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:18:18,748 INFO L87 Difference]: Start difference. First operand 3943 states and 6298 transitions. Second operand 11 states. [2020-10-13 13:18:19,152 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:18:21,048 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:18:21,306 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:18:24,729 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:18:25,114 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-13 13:18:26,173 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 13:18:26,401 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:26,645 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:18:26,954 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-13 13:18:30,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:18:30,108 INFO L93 Difference]: Finished difference Result 13372 states and 21349 transitions. [2020-10-13 13:18:30,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:18:30,109 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 152 [2020-10-13 13:18:30,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:18:30,168 INFO L225 Difference]: With dead ends: 13372 [2020-10-13 13:18:30,168 INFO L226 Difference]: Without dead ends: 9633 [2020-10-13 13:18:30,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 13:18:30,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9633 states. [2020-10-13 13:18:30,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9633 to 7829. [2020-10-13 13:18:30,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7829 states. [2020-10-13 13:18:30,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7829 states to 7829 states and 12591 transitions. [2020-10-13 13:18:30,764 INFO L78 Accepts]: Start accepts. Automaton has 7829 states and 12591 transitions. Word has length 152 [2020-10-13 13:18:30,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:18:30,765 INFO L479 AbstractCegarLoop]: Abstraction has 7829 states and 12591 transitions. [2020-10-13 13:18:30,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:18:30,765 INFO L276 IsEmpty]: Start isEmpty. Operand 7829 states and 12591 transitions. [2020-10-13 13:18:30,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-13 13:18:30,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:18:30,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:18:30,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:18:30,772 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:18:30,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:18:30,772 INFO L82 PathProgramCache]: Analyzing trace with hash 669891696, now seen corresponding path program 1 times [2020-10-13 13:18:30,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:18:30,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336153874] [2020-10-13 13:18:30,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:18:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:30,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:30,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:30,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:31,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:31,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:31,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:31,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:35,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:35,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-13 13:18:35,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:18:35,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 13:18:35,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:35,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:18:35,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-13 13:18:35,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 13:18:35,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:36,227 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:18:36,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:18:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:36,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:36,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:36,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:18:36,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:36,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-13 13:18:36,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:36,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:36,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:36,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:36,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:36,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:18:36,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:36,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:36,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:36,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:18:36,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:36,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-13 13:18:36,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:36,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:18:36,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:36,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 13:18:36,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:36,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:18:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:36,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:36,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:36,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:18:36,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:36,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:18:36,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:36,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:36,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:36,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:18:36,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:36,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:18:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:36,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:36,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:36,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:36,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:36,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:18:36,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:36,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:36,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:36,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:18:36,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:36,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:18:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:36,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:36,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:36,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:36,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:36,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:18:36,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:36,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:36,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:18:36,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:18:36,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:36,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:18:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:36,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:36,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:36,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:18:36,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:36,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:18:36,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:36,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:36,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:36,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:18:36,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:36,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:18:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:36,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:36,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:36,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:18:36,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:36,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:18:36,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:36,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:36,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:36,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:18:36,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:36,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:18:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:36,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:36,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:36,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:18:36,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:36,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:18:36,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:36,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:36,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:18:36,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:18:36,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:36,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:18:36,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336153874] [2020-10-13 13:18:36,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:18:36,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:18:36,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826213988] [2020-10-13 13:18:36,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:18:36,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:18:36,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:18:36,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:18:36,762 INFO L87 Difference]: Start difference. First operand 7829 states and 12591 transitions. Second operand 11 states. [2020-10-13 13:18:37,133 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:18:39,039 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:18:39,692 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:18:41,007 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:18:42,653 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-13 13:18:42,985 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:18:46,413 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:18:46,646 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:18:48,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:18:48,224 INFO L93 Difference]: Finished difference Result 28465 states and 45680 transitions. [2020-10-13 13:18:48,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:18:48,224 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 153 [2020-10-13 13:18:48,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:18:48,314 INFO L225 Difference]: With dead ends: 28465 [2020-10-13 13:18:48,314 INFO L226 Difference]: Without dead ends: 20840 [2020-10-13 13:18:48,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 13:18:48,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20840 states. [2020-10-13 13:18:49,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20840 to 16734. [2020-10-13 13:18:49,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16734 states. [2020-10-13 13:18:49,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16734 states to 16734 states and 27014 transitions. [2020-10-13 13:18:49,236 INFO L78 Accepts]: Start accepts. Automaton has 16734 states and 27014 transitions. Word has length 153 [2020-10-13 13:18:49,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:18:49,237 INFO L479 AbstractCegarLoop]: Abstraction has 16734 states and 27014 transitions. [2020-10-13 13:18:49,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:18:49,237 INFO L276 IsEmpty]: Start isEmpty. Operand 16734 states and 27014 transitions. [2020-10-13 13:18:49,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 13:18:49,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:18:49,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:18:49,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:18:49,244 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:18:49,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:18:49,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1670002757, now seen corresponding path program 1 times [2020-10-13 13:18:49,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:18:49,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005322457] [2020-10-13 13:18:49,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:18:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:49,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:49,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:49,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:49,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:50,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:50,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:50,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:50,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:50,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:54,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:54,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 13:18:54,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:18:54,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5148 [2020-10-13 13:18:54,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:54,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:54,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-13 13:18:54,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:18:54,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:54,801 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:18:54,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:18:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:54,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:54,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:54,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:18:54,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:54,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:18:54,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:54,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:54,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:54,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:54,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:54,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:18:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:54,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:54,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:54,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:18:54,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:54,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 13:18:54,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:54,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:54,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:54,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 13:18:54,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:54,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:18:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:54,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:54,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:54,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:18:54,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:54,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:18:54,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:54,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:18:54,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:18:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:18:54,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:54,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:18:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:54,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:54,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:54,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 13:18:54,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:54,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:18:54,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:54,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:18:54,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:18:54,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 13:18:54,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:55,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:18:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:55,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:55,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:55,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:18:55,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:55,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:18:55,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:55,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:55,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:18:55,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:55,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:55,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 13:18:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:55,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:55,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:55,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:18:55,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:55,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:18:55,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:55,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:55,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:18:55,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:55,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:55,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 13:18:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:55,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:55,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:55,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:18:55,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:55,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:18:55,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:55,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:55,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:18:55,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:55,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:55,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-13 13:18:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:18:55,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:18:55,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:18:55,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:18:55,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:18:55,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:18:55,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:18:55,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:18:55,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:18:55,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:18:55,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:18:55,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:18:55,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2005322457] [2020-10-13 13:18:55,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:18:55,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:18:55,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604648196] [2020-10-13 13:18:55,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:18:55,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:18:55,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:18:55,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:18:55,133 INFO L87 Difference]: Start difference. First operand 16734 states and 27014 transitions. Second operand 9 states. [2020-10-13 13:18:55,493 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:18:57,318 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:18:59,283 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-13 13:18:59,427 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:18:59,634 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:18:59,853 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:19:00,406 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:19:00,957 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:19:02,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:19:02,109 INFO L93 Difference]: Finished difference Result 46627 states and 75008 transitions. [2020-10-13 13:19:02,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:19:02,110 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 154 [2020-10-13 13:19:02,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:19:02,238 INFO L225 Difference]: With dead ends: 46627 [2020-10-13 13:19:02,239 INFO L226 Difference]: Without dead ends: 32975 [2020-10-13 13:19:02,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:19:02,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32975 states. [2020-10-13 13:19:04,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32975 to 27122. [2020-10-13 13:19:04,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27122 states. [2020-10-13 13:19:04,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27122 states to 27122 states and 43404 transitions. [2020-10-13 13:19:04,718 INFO L78 Accepts]: Start accepts. Automaton has 27122 states and 43404 transitions. Word has length 154 [2020-10-13 13:19:04,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:19:04,719 INFO L479 AbstractCegarLoop]: Abstraction has 27122 states and 43404 transitions. [2020-10-13 13:19:04,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:19:04,719 INFO L276 IsEmpty]: Start isEmpty. Operand 27122 states and 43404 transitions. [2020-10-13 13:19:04,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 13:19:04,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:19:04,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:19:04,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:19:04,722 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:19:04,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:19:04,723 INFO L82 PathProgramCache]: Analyzing trace with hash 502207744, now seen corresponding path program 1 times [2020-10-13 13:19:04,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:19:04,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204960947] [2020-10-13 13:19:04,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:19:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:04,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:04,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:04,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:04,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:05,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:05,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:05,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:09,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:09,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 13:19:09,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:19:09,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 13:19:09,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:09,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:19:09,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-13 13:19:09,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 13:19:09,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:10,122 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:19:10,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:19:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:10,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:10,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:10,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:19:10,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:10,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:19:10,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:10,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:10,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:10,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:10,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:10,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:19:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:10,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:10,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:10,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:19:10,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:10,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 13:19:10,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:19:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:19:10,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:10,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:19:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:10,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:10,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:10,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:19:10,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:10,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:19:10,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:10,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:10,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:10,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:19:10,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:10,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:19:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:10,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:10,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:10,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:10,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:10,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:19:10,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:10,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:10,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:10,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:10,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:10,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:19:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:10,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:10,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:10,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:10,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:10,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:19:10,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:10,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:10,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:10,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:10,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:10,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:19:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:10,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:10,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:10,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:10,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:10,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:19:10,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:10,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:19:10,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:19:10,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:10,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:10,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:19:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:10,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:10,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:10,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:10,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:10,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:19:10,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:19:10,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:10,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:19:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:10,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:10,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:10,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:10,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:10,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:19:10,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:10,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:10,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:19:10,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:19:10,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:10,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:19:10,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204960947] [2020-10-13 13:19:10,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:19:10,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:19:10,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915177857] [2020-10-13 13:19:10,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:19:10,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:19:10,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:19:10,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:19:10,519 INFO L87 Difference]: Start difference. First operand 27122 states and 43404 transitions. Second operand 11 states. [2020-10-13 13:19:10,886 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:19:12,667 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:19:13,582 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:19:15,549 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-13 13:19:15,910 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:19:16,920 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:19:20,282 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:19:23,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:19:23,835 INFO L93 Difference]: Finished difference Result 140337 states and 223324 transitions. [2020-10-13 13:19:23,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 13:19:23,836 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 154 [2020-10-13 13:19:23,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:19:24,220 INFO L225 Difference]: With dead ends: 140337 [2020-10-13 13:19:24,220 INFO L226 Difference]: Without dead ends: 113422 [2020-10-13 13:19:24,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 13:19:24,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113422 states. [2020-10-13 13:19:29,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113422 to 93023. [2020-10-13 13:19:29,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93023 states. [2020-10-13 13:19:29,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93023 states to 93023 states and 148758 transitions. [2020-10-13 13:19:30,001 INFO L78 Accepts]: Start accepts. Automaton has 93023 states and 148758 transitions. Word has length 154 [2020-10-13 13:19:30,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:19:30,001 INFO L479 AbstractCegarLoop]: Abstraction has 93023 states and 148758 transitions. [2020-10-13 13:19:30,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:19:30,002 INFO L276 IsEmpty]: Start isEmpty. Operand 93023 states and 148758 transitions. [2020-10-13 13:19:30,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 13:19:30,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:19:30,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:19:30,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:19:30,006 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:19:30,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:19:30,006 INFO L82 PathProgramCache]: Analyzing trace with hash -506512015, now seen corresponding path program 1 times [2020-10-13 13:19:30,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:19:30,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1132383509] [2020-10-13 13:19:30,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:19:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:30,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:30,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:30,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:30,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:30,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:30,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:30,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:30,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:30,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:35,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:35,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 13:19:35,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:19:35,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-13 13:19:35,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:35,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:19:35,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-13 13:19:35,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:19:35,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:35,423 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:19:35,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:19:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:35,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:35,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:35,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:19:35,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:35,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:19:35,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:35,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:35,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:35,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:35,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:35,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:19:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:35,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:35,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:35,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:19:35,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:35,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 13:19:35,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:35,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:35,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:35,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 13:19:35,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:35,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:19:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:35,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:35,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:35,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:19:35,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:35,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:19:35,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:19:35,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:35,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:19:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:35,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:35,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:35,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:19:35,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:35,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:19:35,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:35,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:19:35,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:35,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:35,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:35,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:19:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:35,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:35,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:35,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 13:19:35,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:35,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:19:35,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:35,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:19:35,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:19:35,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 13:19:35,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:35,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 13:19:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:35,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:35,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:35,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:35,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:35,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:19:35,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:35,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:35,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:19:35,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:35,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:35,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-13 13:19:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:35,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:35,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:35,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:35,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:35,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:19:35,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:19:35,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:35,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:35,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-13 13:19:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:35,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:35,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:35,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:35,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:35,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:19:35,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:35,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:35,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:19:35,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:35,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:35,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:19:35,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1132383509] [2020-10-13 13:19:35,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:19:35,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:19:35,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442411542] [2020-10-13 13:19:35,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:19:35,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:19:35,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:19:35,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:19:35,761 INFO L87 Difference]: Start difference. First operand 93023 states and 148758 transitions. Second operand 9 states. [2020-10-13 13:19:36,137 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:19:38,315 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:19:38,611 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-13 13:19:40,385 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-13 13:19:40,520 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:19:40,712 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:19:40,907 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:19:41,302 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 13:19:49,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:19:49,545 INFO L93 Difference]: Finished difference Result 262692 states and 418780 transitions. [2020-10-13 13:19:49,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:19:49,546 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 154 [2020-10-13 13:19:49,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:19:50,155 INFO L225 Difference]: With dead ends: 262692 [2020-10-13 13:19:50,155 INFO L226 Difference]: Without dead ends: 184167 [2020-10-13 13:19:50,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:19:50,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184167 states. [2020-10-13 13:19:56,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184167 to 151899. [2020-10-13 13:19:56,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151899 states. [2020-10-13 13:19:56,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151899 states to 151899 states and 240488 transitions. [2020-10-13 13:19:56,478 INFO L78 Accepts]: Start accepts. Automaton has 151899 states and 240488 transitions. Word has length 154 [2020-10-13 13:19:56,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:19:56,478 INFO L479 AbstractCegarLoop]: Abstraction has 151899 states and 240488 transitions. [2020-10-13 13:19:56,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:19:56,478 INFO L276 IsEmpty]: Start isEmpty. Operand 151899 states and 240488 transitions. [2020-10-13 13:19:56,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-13 13:19:56,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:19:56,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:19:56,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:19:56,481 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:19:56,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:19:56,481 INFO L82 PathProgramCache]: Analyzing trace with hash -452712409, now seen corresponding path program 1 times [2020-10-13 13:19:56,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:19:56,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1474480103] [2020-10-13 13:19:56,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:19:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:56,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:56,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:56,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:56,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:57,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:57,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:57,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:04,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:04,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 13:20:04,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:20:04,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7499 [2020-10-13 13:20:04,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:04,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:20:04,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-13 13:20:04,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 13:20:04,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:04,360 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-13 13:20:04,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:20:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:04,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:04,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:04,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:20:04,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:04,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:20:04,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:20:04,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:04,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:04,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:20:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:04,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:04,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:04,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 13:20:04,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:04,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-13 13:20:04,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:04,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:20:04,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:20:04,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 13:20:04,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:04,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:20:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:04,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:04,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:04,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:20:04,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:04,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:20:04,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:20:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:20:04,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:20:04,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:04,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:20:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:04,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:04,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:04,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:20:04,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:04,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:20:04,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:04,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:20:04,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:20:04,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:20:04,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:04,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:20:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:04,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:04,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:04,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:20:04,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:04,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:20:04,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:04,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:20:04,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:20:04,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:20:04,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:04,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:20:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:04,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:04,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:04,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:04,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:04,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:20:04,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:04,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:20:04,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:20:04,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:20:04,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:04,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:20:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:04,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:04,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:04,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:04,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:04,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:20:04,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:20:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:20:04,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:20:04,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:04,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:20:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:04,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:04,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:04,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:20:04,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:04,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:20:04,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:04,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:20:04,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:04,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:20:04,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:04,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:20:04,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1474480103] [2020-10-13 13:20:04,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:20:04,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:20:04,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940818257] [2020-10-13 13:20:04,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:20:04,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:20:04,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:20:04,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:20:04,876 INFO L87 Difference]: Start difference. First operand 151899 states and 240488 transitions. Second operand 11 states. [2020-10-13 13:20:05,229 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2020-10-13 13:20:07,138 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-13 13:20:08,119 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:20:09,094 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-13 13:20:09,412 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-13 13:20:13,796 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:20:14,199 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118