/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:47:30,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:47:30,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:47:30,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:47:30,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:47:30,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:47:30,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:47:30,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:47:30,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:47:30,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:47:30,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:47:30,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:47:30,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:47:30,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:47:30,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:47:30,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:47:30,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:47:30,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:47:30,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:47:30,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:47:30,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:47:30,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:47:30,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:47:30,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:47:30,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:47:30,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:47:30,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:47:30,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:47:30,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:47:30,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:47:30,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:47:30,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:47:30,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:47:30,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:47:30,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:47:30,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:47:30,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:47:30,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:47:30,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:47:30,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:47:30,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:47:30,159 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 [2020-10-15 02:47:30,200 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:47:30,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:47:30,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:47:30,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:47:30,203 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:47:30,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:47:30,204 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:47:30,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:47:30,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:47:30,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:47:30,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:47:30,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:47:30,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:47:30,207 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:47:30,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:47:30,207 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:47:30,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:47:30,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:47:30,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:47:30,208 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:47:30,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:47:30,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:47:30,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:47:30,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:47:30,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:47:30,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:47:30,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:47:30,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:47:30,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:47:30,210 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:47:30,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:47:30,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:47:30,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:47:30,571 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:47:30,572 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:47:30,573 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c [2020-10-15 02:47:30,636 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f05b0a8e9/7c2259319b37486392d60578b71d7c81/FLAG1b604f387 [2020-10-15 02:47:31,260 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:47:31,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c [2020-10-15 02:47:31,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f05b0a8e9/7c2259319b37486392d60578b71d7c81/FLAG1b604f387 [2020-10-15 02:47:31,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f05b0a8e9/7c2259319b37486392d60578b71d7c81 [2020-10-15 02:47:31,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:47:31,487 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:47:31,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:47:31,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:47:31,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:47:31,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:47:31" (1/1) ... [2020-10-15 02:47:31,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dadf5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:31, skipping insertion in model container [2020-10-15 02:47:31,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:47:31" (1/1) ... [2020-10-15 02:47:31,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:47:31,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:47:32,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:47:32,252 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:47:32,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:47:32,406 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:47:32,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:32 WrapperNode [2020-10-15 02:47:32,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:47:32,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:47:32,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:47:32,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:47:32,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:32" (1/1) ... [2020-10-15 02:47:32,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:32" (1/1) ... [2020-10-15 02:47:32,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:32" (1/1) ... [2020-10-15 02:47:32,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:32" (1/1) ... [2020-10-15 02:47:32,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:32" (1/1) ... [2020-10-15 02:47:32,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:32" (1/1) ... [2020-10-15 02:47:32,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:32" (1/1) ... [2020-10-15 02:47:32,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:47:32,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:47:32,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:47:32,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:47:32,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:32" (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 [2020-10-15 02:47:32,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:47:32,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:47:32,681 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:47:32,681 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:47:32,681 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:47:32,682 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:47:32,682 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-15 02:47:32,682 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-15 02:47:32,682 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:47:32,682 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:47:32,683 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:47:32,683 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:47:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:47:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:47:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:47:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:47:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:47:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:47:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:47:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:47:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:47:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:47:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:47:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 02:47:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-15 02:47:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:47:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:47:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:47:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:47:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:47:35,042 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:47:35,043 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:47:35,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:47:35 BoogieIcfgContainer [2020-10-15 02:47:35,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:47:35,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:47:35,062 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:47:35,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:47:35,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:47:31" (1/3) ... [2020-10-15 02:47:35,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5861cddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:47:35, skipping insertion in model container [2020-10-15 02:47:35,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:47:32" (2/3) ... [2020-10-15 02:47:35,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5861cddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:47:35, skipping insertion in model container [2020-10-15 02:47:35,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:47:35" (3/3) ... [2020-10-15 02:47:35,069 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c [2020-10-15 02:47:35,079 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:47:35,089 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:47:35,103 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:47:35,133 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:47:35,134 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:47:35,134 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:47:35,134 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:47:35,134 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:47:35,134 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:47:35,134 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:47:35,135 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:47:35,170 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states. [2020-10-15 02:47:35,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-15 02:47:35,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:47:35,201 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:47:35,201 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:47:35,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:47:35,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1964386708, now seen corresponding path program 1 times [2020-10-15 02:47:35,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:47:35,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921120687] [2020-10-15 02:47:35,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:47:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:36,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:36,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:36,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-15 02:47:36,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:36,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1138 [2020-10-15 02:47:36,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:36,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:36,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:36,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-15 02:47:36,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:36,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-15 02:47:38,039 WARN L193 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-15 02:47:38,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:47:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:38,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:38,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:38,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:47:38,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:38,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-15 02:47:38,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:38,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:38,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:38,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:38,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:38,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:38,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:47:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:38,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:38,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:38,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-15 02:47:38,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:38,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-15 02:47:38,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:38,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:38,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:38,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:38,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:38,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:38,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-15 02:47:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:38,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:38,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:38,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:47:38,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:38,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:47:38,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:38,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:38,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:38,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:47:38,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:38,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:38,596 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-10-15 02:47:38,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-15 02:47:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:38,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:38,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:38,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:38,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:38,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:47:38,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:38,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:38,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:38,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:47:38,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:38,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-15 02:47:38,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-15 02:47:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:38,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:38,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:38,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:38,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:38,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:47:38,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:38,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:38,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:38,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:47:38,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:38,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:38,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-15 02:47:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:38,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:38,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:38,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:38,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:38,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:47:38,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:38,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:38,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:38,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:47:38,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:38,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:38,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-15 02:47:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:38,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:38,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:38,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:38,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:38,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:47:38,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:38,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:38,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:38,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:47:38,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:38,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:38,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-15 02:47:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:38,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:38,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:38,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:38,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:38,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:47:38,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:38,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:38,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:38,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:47:38,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:38,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:38,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-15 02:47:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:38,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:38,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:38,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:47:38,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:38,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:47:38,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:38,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:47:38,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:38,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:39,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:47:39,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1921120687] [2020-10-15 02:47:39,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:47:39,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 02:47:39,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669067682] [2020-10-15 02:47:39,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 02:47:39,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:47:39,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 02:47:39,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-15 02:47:39,065 INFO L87 Difference]: Start difference. First operand 773 states. Second operand 8 states. [2020-10-15 02:47:41,945 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:47:42,550 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:47:43,290 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:47:43,961 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:47:44,697 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:47:45,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:47:45,702 INFO L93 Difference]: Finished difference Result 1051 states and 1855 transitions. [2020-10-15 02:47:45,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 02:47:45,703 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-10-15 02:47:45,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:47:45,731 INFO L225 Difference]: With dead ends: 1051 [2020-10-15 02:47:45,732 INFO L226 Difference]: Without dead ends: 833 [2020-10-15 02:47:45,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:47:45,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2020-10-15 02:47:45,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 768. [2020-10-15 02:47:45,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2020-10-15 02:47:45,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1387 transitions. [2020-10-15 02:47:45,902 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1387 transitions. Word has length 187 [2020-10-15 02:47:45,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:47:45,903 INFO L479 AbstractCegarLoop]: Abstraction has 768 states and 1387 transitions. [2020-10-15 02:47:45,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 02:47:45,904 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1387 transitions. [2020-10-15 02:47:45,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-15 02:47:45,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:47:45,911 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:47:45,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:47:45,912 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:47:45,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:47:45,913 INFO L82 PathProgramCache]: Analyzing trace with hash -792240558, now seen corresponding path program 1 times [2020-10-15 02:47:45,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:47:45,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186271864] [2020-10-15 02:47:45,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:47:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:46,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:48,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:48,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-15 02:47:48,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:48,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2891 [2020-10-15 02:47:48,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:48,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:48,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:47:48,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-15 02:47:48,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:47:48,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:49,902 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-15 02:47:49,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:47:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:49,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:49,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:49,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:47:49,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:49,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:47:49,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:49,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:49,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:49,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:49,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:49,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:49,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:47:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:50,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:50,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:50,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-15 02:47:50,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:50,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 524 [2020-10-15 02:47:50,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:50,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:50,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:47:50,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:50,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-15 02:47:50,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:50,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-15 02:47:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:50,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:50,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:50,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:47:50,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:50,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:47:50,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:50,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:50,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:47:50,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:47:50,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:47:50,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:50,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-15 02:47:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:50,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:50,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:50,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:50,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:50,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:47:50,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:50,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:50,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:50,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:47:50,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:50,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:50,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-15 02:47:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:50,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:50,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:50,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:50,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:50,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:47:50,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:50,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:50,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:50,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:47:50,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:50,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:50,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-15 02:47:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:50,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:50,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:50,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:50,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:50,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:47:50,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:50,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:47:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:50,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:50,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-15 02:47:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:50,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:50,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:50,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:50,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:50,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:47:50,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:50,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:50,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:50,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:47:50,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:50,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:50,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-15 02:47:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:50,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:50,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:50,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:50,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:50,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:47:50,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:50,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:50,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:50,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:47:50,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:50,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:50,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-15 02:47:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:50,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:50,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:50,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:47:50,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:50,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:47:50,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:50,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:50,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:50,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:47:50,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:50,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:51,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:47:51,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [186271864] [2020-10-15 02:47:51,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:47:51,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:47:51,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381729697] [2020-10-15 02:47:51,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:47:51,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:47:51,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:47:51,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:47:51,055 INFO L87 Difference]: Start difference. First operand 768 states and 1387 transitions. Second operand 14 states. [2020-10-15 02:47:59,002 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-15 02:47:59,742 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2020-10-15 02:48:00,622 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-15 02:48:01,307 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 02:48:02,423 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:03,147 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:04,075 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:04,958 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:05,823 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:07,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:48:07,257 INFO L93 Difference]: Finished difference Result 1055 states and 1861 transitions. [2020-10-15 02:48:07,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:48:07,258 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 187 [2020-10-15 02:48:07,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:48:07,265 INFO L225 Difference]: With dead ends: 1055 [2020-10-15 02:48:07,266 INFO L226 Difference]: Without dead ends: 844 [2020-10-15 02:48:07,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:48:07,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2020-10-15 02:48:07,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 768. [2020-10-15 02:48:07,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2020-10-15 02:48:07,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1322 transitions. [2020-10-15 02:48:07,382 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1322 transitions. Word has length 187 [2020-10-15 02:48:07,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:48:07,382 INFO L479 AbstractCegarLoop]: Abstraction has 768 states and 1322 transitions. [2020-10-15 02:48:07,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:48:07,383 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1322 transitions. [2020-10-15 02:48:07,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-10-15 02:48:07,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:48:07,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:48:07,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:48:07,388 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:48:07,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:48:07,388 INFO L82 PathProgramCache]: Analyzing trace with hash 791940016, now seen corresponding path program 1 times [2020-10-15 02:48:07,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:48:07,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519033709] [2020-10-15 02:48:07,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:48:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:07,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:07,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:08,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:09,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:12,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:12,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-15 02:48:12,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:48:12,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5118 [2020-10-15 02:48:12,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:12,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:12,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:48:12,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-10-15 02:48:12,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-15 02:48:12,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:13,451 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-15 02:48:13,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:48:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:13,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:13,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:13,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:48:13,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:13,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:48:13,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:13,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:13,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:13,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:13,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:13,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:13,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:48:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:13,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:13,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:13,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-15 02:48:13,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:13,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-10-15 02:48:13,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:13,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:13,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:13,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:13,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-15 02:48:13,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:14,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-15 02:48:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:14,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:14,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:14,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:48:14,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:14,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:48:14,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:14,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:14,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:14,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:14,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:48:14,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:14,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-15 02:48:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:14,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:14,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:14,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:14,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:14,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:48:14,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:14,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:48:14,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:14,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-15 02:48:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:14,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:14,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:14,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:14,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:14,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:48:14,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:14,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:14,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:14,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:14,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:48:14,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:14,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-15 02:48:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:14,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:14,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:14,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:14,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:14,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:48:14,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:14,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:14,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:14,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:14,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:48:14,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:14,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-15 02:48:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:14,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:14,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:14,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:14,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:14,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:48:14,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:14,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:14,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:48:14,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:48:14,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:48:14,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:14,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-10-15 02:48:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:14,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:14,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:14,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:14,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:14,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:48:14,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:14,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:14,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:14,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:48:14,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:14,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:14,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-10-15 02:48:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:14,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:14,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:14,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:48:14,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:14,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:48:14,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:14,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:14,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:14,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:48:14,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:14,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:14,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:48:14,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [519033709] [2020-10-15 02:48:14,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:48:14,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:48:14,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196179770] [2020-10-15 02:48:14,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:48:14,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:48:14,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:48:14,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:48:14,559 INFO L87 Difference]: Start difference. First operand 768 states and 1322 transitions. Second operand 11 states. [2020-10-15 02:48:15,225 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-15 02:48:20,885 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-15 02:48:21,441 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-15 02:48:22,138 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-15 02:48:22,852 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:23,390 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 02:48:23,852 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-15 02:48:24,076 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:25,605 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:26,026 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:26,471 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:27,402 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2020-10-15 02:48:27,638 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-15 02:48:27,959 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 02:48:28,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:48:28,004 INFO L93 Difference]: Finished difference Result 1301 states and 2205 transitions. [2020-10-15 02:48:28,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:48:28,005 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 251 [2020-10-15 02:48:28,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:48:28,013 INFO L225 Difference]: With dead ends: 1301 [2020-10-15 02:48:28,013 INFO L226 Difference]: Without dead ends: 1096 [2020-10-15 02:48:28,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:48:28,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2020-10-15 02:48:28,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 961. [2020-10-15 02:48:28,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2020-10-15 02:48:28,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1640 transitions. [2020-10-15 02:48:28,148 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1640 transitions. Word has length 251 [2020-10-15 02:48:28,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:48:28,148 INFO L479 AbstractCegarLoop]: Abstraction has 961 states and 1640 transitions. [2020-10-15 02:48:28,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:48:28,149 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1640 transitions. [2020-10-15 02:48:28,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-15 02:48:28,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:48:28,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:48:28,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:48:28,155 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:48:28,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:48:28,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1819277368, now seen corresponding path program 1 times [2020-10-15 02:48:28,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:48:28,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450549279] [2020-10-15 02:48:28,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:48:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:28,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:28,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:29,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:29,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:30,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:30,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:30,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:33,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:33,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-15 02:48:33,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:48:33,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-15 02:48:33,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:33,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:48:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:48:33,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 233 [2020-10-15 02:48:33,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:34,271 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-15 02:48:34,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:48:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:34,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:34,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:34,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:48:34,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:34,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:48:34,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:34,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:34,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:34,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:34,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:34,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:48:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:34,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:34,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:34,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-15 02:48:34,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:34,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 555 [2020-10-15 02:48:34,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:34,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:34,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:48:34,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:34,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-15 02:48:34,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:35,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-15 02:48:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:35,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:35,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:35,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:48:35,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:35,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:48:35,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:35,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:35,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:35,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:35,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:48:35,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:35,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-15 02:48:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:35,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:35,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:35,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:35,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:35,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:48:35,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:35,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:35,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:35,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:35,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:48:35,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:35,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-15 02:48:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:35,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:35,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:35,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:35,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:35,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:48:35,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:35,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:35,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:35,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:35,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:48:35,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:35,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-15 02:48:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:35,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:35,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:35,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:35,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:35,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:48:35,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:35,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:35,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:35,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:35,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:48:35,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:35,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-15 02:48:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:35,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:35,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:35,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:48:35,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:35,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 02:48:35,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:35,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:35,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:35,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:48:35,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:48:35,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:35,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-15 02:48:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:35,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:35,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:35,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:35,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:35,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:48:35,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:35,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:35,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:35,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:48:35,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:35,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:35,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-10-15 02:48:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:35,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:35,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:35,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:48:35,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:35,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:48:35,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:35,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:35,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:35,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:48:35,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:35,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:48:35,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:48:35,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450549279] [2020-10-15 02:48:35,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:48:35,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:48:35,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200953782] [2020-10-15 02:48:35,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:48:35,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:48:35,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:48:35,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:48:35,790 INFO L87 Difference]: Start difference. First operand 961 states and 1640 transitions. Second operand 11 states. [2020-10-15 02:48:36,478 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-15 02:48:37,178 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 380 [2020-10-15 02:48:38,990 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 382 DAG size of output: 378 [2020-10-15 02:48:39,727 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 384 [2020-10-15 02:48:55,963 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 02:48:56,422 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:48:56,769 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:57,301 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:48:57,744 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:48:58,378 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:48:59,345 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:48:59,653 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:49:00,350 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:49:01,411 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:49:01,729 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:49:02,415 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:49:03,412 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:49:04,416 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:49:04,741 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:49:05,034 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:49:07,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:49:07,037 INFO L93 Difference]: Finished difference Result 3895 states and 6652 transitions. [2020-10-15 02:49:07,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 02:49:07,038 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 255 [2020-10-15 02:49:07,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:49:07,055 INFO L225 Difference]: With dead ends: 3895 [2020-10-15 02:49:07,055 INFO L226 Difference]: Without dead ends: 3011 [2020-10-15 02:49:07,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:49:07,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2020-10-15 02:49:07,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 2664. [2020-10-15 02:49:07,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-10-15 02:49:07,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 4532 transitions. [2020-10-15 02:49:07,416 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 4532 transitions. Word has length 255 [2020-10-15 02:49:07,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:49:07,417 INFO L479 AbstractCegarLoop]: Abstraction has 2664 states and 4532 transitions. [2020-10-15 02:49:07,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:49:07,417 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 4532 transitions. [2020-10-15 02:49:07,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-15 02:49:07,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:49:07,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:49:07,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:49:07,427 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:49:07,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:49:07,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1363106257, now seen corresponding path program 1 times [2020-10-15 02:49:07,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:49:07,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1131550291] [2020-10-15 02:49:07,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:49:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:07,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:07,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:08,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:09,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:09,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:10,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:10,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:11,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:12,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:12,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-15 02:49:12,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:49:12,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5058 [2020-10-15 02:49:12,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:12,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:12,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:49:12,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:49:12,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 235 [2020-10-15 02:49:12,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:13,659 WARN L193 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-15 02:49:13,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:49:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:13,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:13,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:13,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:49:13,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:13,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:49:13,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:13,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:13,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:49:13,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:13,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:49:13,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:49:13,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:49:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:13,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:14,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:14,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-15 02:49:14,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:14,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-10-15 02:49:14,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:14,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:14,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:49:14,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:14,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-15 02:49:14,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:49:14,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-15 02:49:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:14,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:14,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:14,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:49:14,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:14,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:49:14,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:14,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:14,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:49:14,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:14,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:49:14,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:14,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-15 02:49:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:14,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:14,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:14,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:49:14,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:14,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:49:14,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:14,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:14,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:49:14,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:14,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:49:14,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:49:14,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-15 02:49:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:14,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:14,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:14,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:49:14,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:14,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:49:14,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:14,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:14,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:49:14,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:14,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:49:14,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:49:14,724 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-10-15 02:49:14,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-15 02:49:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:14,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:14,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:14,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:49:14,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:14,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:49:14,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:14,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:14,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:49:14,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:14,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:49:14,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:49:14,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-15 02:49:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:14,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:14,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:14,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:49:14,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:14,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:49:14,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:14,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:14,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:49:14,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:49:14,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:49:14,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:14,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-15 02:49:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:14,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:14,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:14,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:49:14,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:14,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:49:14,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:14,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:14,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:49:14,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:49:14,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:49:14,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:14,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2020-10-15 02:49:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:14,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:14,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:14,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:49:14,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:14,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:49:14,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:14,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:14,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:49:14,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:49:14,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:49:14,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:15,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:49:15,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1131550291] [2020-10-15 02:49:15,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:49:15,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:49:15,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492755233] [2020-10-15 02:49:15,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:49:15,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:49:15,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:49:15,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:49:15,129 INFO L87 Difference]: Start difference. First operand 2664 states and 4532 transitions. Second operand 11 states. [2020-10-15 02:49:15,824 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-15 02:49:16,527 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 381 [2020-10-15 02:49:17,568 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 384 [2020-10-15 02:49:18,961 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 383 DAG size of output: 381 [2020-10-15 02:49:36,004 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 02:49:36,469 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:49:36,826 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:49:37,404 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:49:37,930 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:49:38,612 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:49:39,516 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:49:40,146 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:49:40,897 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:49:41,879 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:49:42,472 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:49:43,208 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:49:44,056 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:49:45,365 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:49:45,931 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:49:46,184 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:49:48,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:49:48,194 INFO L93 Difference]: Finished difference Result 10715 states and 18273 transitions. [2020-10-15 02:49:48,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 02:49:48,201 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 256 [2020-10-15 02:49:48,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:49:48,240 INFO L225 Difference]: With dead ends: 10715 [2020-10-15 02:49:48,241 INFO L226 Difference]: Without dead ends: 8148 [2020-10-15 02:49:48,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:49:48,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8148 states. [2020-10-15 02:49:49,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8148 to 7316. [2020-10-15 02:49:49,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7316 states. [2020-10-15 02:49:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7316 states to 7316 states and 12415 transitions. [2020-10-15 02:49:49,516 INFO L78 Accepts]: Start accepts. Automaton has 7316 states and 12415 transitions. Word has length 256 [2020-10-15 02:49:49,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:49:49,516 INFO L479 AbstractCegarLoop]: Abstraction has 7316 states and 12415 transitions. [2020-10-15 02:49:49,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:49:49,517 INFO L276 IsEmpty]: Start isEmpty. Operand 7316 states and 12415 transitions. [2020-10-15 02:49:49,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-15 02:49:49,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:49:49,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:49:49,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:49:49,537 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:49:49,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:49:49,537 INFO L82 PathProgramCache]: Analyzing trace with hash -449254331, now seen corresponding path program 1 times [2020-10-15 02:49:49,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:49:49,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499213763] [2020-10-15 02:49:49,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:49:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:49,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:49,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:50,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:50,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:51,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:51,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:52,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:54,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:54,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-15 02:49:54,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:49:54,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-15 02:49:54,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:54,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:54,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:49:54,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:49:54,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 237 [2020-10-15 02:49:54,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:55,375 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-15 02:49:55,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:49:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:55,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:55,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:55,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:49:55,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:55,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:49:55,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:55,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:55,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:49:55,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:55,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:49:55,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:55,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:49:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:55,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:55,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:55,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-15 02:49:55,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:55,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 447 [2020-10-15 02:49:55,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:55,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:55,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:49:55,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:55,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-15 02:49:55,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:49:56,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-15 02:49:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:56,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:56,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:56,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:49:56,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:56,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:49:56,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:56,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:49:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:49:56,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:56,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-15 02:49:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:56,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:56,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:56,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:49:56,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:56,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:49:56,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:56,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:49:56,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:56,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:49:56,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:56,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-15 02:49:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:56,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:56,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:56,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:49:56,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:56,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:49:56,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:56,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:56,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:49:56,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:56,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:49:56,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:56,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-15 02:49:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:56,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:56,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:56,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:49:56,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:56,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:49:56,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:56,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:56,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:49:56,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:49:56,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:49:56,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:56,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-15 02:49:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:56,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:56,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:56,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:49:56,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:56,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:49:56,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:56,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:56,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:49:56,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:49:56,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:49:56,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:56,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-15 02:49:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:56,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:56,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:56,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:49:56,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:56,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:49:56,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:56,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:56,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:49:56,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:49:56,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:49:56,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:56,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2020-10-15 02:49:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:49:56,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:49:56,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:49:56,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:49:56,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:49:56,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:49:56,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:49:56,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:49:56,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:49:56,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:49:56,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:49:56,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:49:56,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:49:56,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499213763] [2020-10-15 02:49:56,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:49:56,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:49:56,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762414915] [2020-10-15 02:49:56,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:49:56,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:49:56,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:49:56,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:49:56,517 INFO L87 Difference]: Start difference. First operand 7316 states and 12415 transitions. Second operand 11 states. [2020-10-15 02:49:57,241 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-15 02:49:57,966 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 381 [2020-10-15 02:49:59,148 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 384 [2020-10-15 02:50:00,648 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 383 DAG size of output: 381 [2020-10-15 02:50:20,785 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 02:50:21,227 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:50:21,588 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:50:22,301 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:50:22,581 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:50:23,247 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:50:24,326 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:50:24,666 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:50:25,407 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:50:26,534 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:50:27,025 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:50:27,716 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:50:28,712 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:50:29,870 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:50:30,235 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:50:30,594 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-15 02:50:32,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:50:32,412 INFO L93 Difference]: Finished difference Result 30669 states and 52095 transitions. [2020-10-15 02:50:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 02:50:32,413 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 256 [2020-10-15 02:50:32,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:50:32,501 INFO L225 Difference]: With dead ends: 30669 [2020-10-15 02:50:32,501 INFO L226 Difference]: Without dead ends: 23654 [2020-10-15 02:50:32,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:50:32,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23654 states. [2020-10-15 02:50:37,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23654 to 21300. [2020-10-15 02:50:37,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21300 states. [2020-10-15 02:50:37,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21300 states to 21300 states and 35983 transitions. [2020-10-15 02:50:37,061 INFO L78 Accepts]: Start accepts. Automaton has 21300 states and 35983 transitions. Word has length 256 [2020-10-15 02:50:37,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:50:37,061 INFO L479 AbstractCegarLoop]: Abstraction has 21300 states and 35983 transitions. [2020-10-15 02:50:37,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:50:37,062 INFO L276 IsEmpty]: Start isEmpty. Operand 21300 states and 35983 transitions. [2020-10-15 02:50:37,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-15 02:50:37,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:50:37,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:50:37,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:50:37,107 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:50:37,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:50:37,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1718334887, now seen corresponding path program 1 times [2020-10-15 02:50:37,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:50:37,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331988967] [2020-10-15 02:50:37,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:50:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:50:37,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:37,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:37,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:37,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:38,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:39,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:39,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:41,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:42,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:50:42,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-15 02:50:42,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:50:42,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:50:42,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:50:42,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:50:42,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:50:42,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:50:42,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-15 02:50:42,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:50:42,953 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2020-10-15 02:50:42,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:50:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:50:42,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:42,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:50:42,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:50:42,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:50:42,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:50:42,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:50:42,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:50:42,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:50:42,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:50:42,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:50:42,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:50:42,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:50:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:50:43,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:43,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:50:43,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-15 02:50:43,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:50:43,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-10-15 02:50:43,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:50:43,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:50:43,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:50:43,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:50:43,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:50:43,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:50:43,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-15 02:50:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:50:43,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:43,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:50:43,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:50:43,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:50:43,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:50:43,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:50:43,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:50:43,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:50:43,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:50:43,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:50:43,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:50:43,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-15 02:50:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:50:43,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:43,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:50:43,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:50:43,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:50:43,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:50:43,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:50:43,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:50:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:50:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:50:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:50:43,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:50:43,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-15 02:50:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:50:43,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:43,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:50:43,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:50:43,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:50:43,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:50:43,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:50:43,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:50:43,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:50:43,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:50:43,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:50:43,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:50:43,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-15 02:50:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:50:43,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:43,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:50:43,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:50:43,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:50:43,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:50:43,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:50:43,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:50:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:50:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:50:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:50:43,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:50:43,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-15 02:50:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:50:43,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:43,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:50:43,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:50:43,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:50:43,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:50:43,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:50:43,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:50:43,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:50:43,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:50:43,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:50:43,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:50:43,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-15 02:50:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:50:43,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:43,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:50:43,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:50:43,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:50:43,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:50:43,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:50:43,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:50:43,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:50:43,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:50:43,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:50:43,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:50:43,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-10-15 02:50:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:50:43,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:50:43,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:50:43,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:50:43,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:50:43,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:50:43,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:50:43,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:50:43,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:50:43,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:50:43,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:50:43,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:50:43,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:50:43,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331988967] [2020-10-15 02:50:43,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:50:43,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-15 02:50:43,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349962367] [2020-10-15 02:50:43,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:50:43,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:50:43,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:50:43,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:50:43,893 INFO L87 Difference]: Start difference. First operand 21300 states and 35983 transitions. Second operand 11 states. [2020-10-15 02:50:44,788 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2020-10-15 02:50:45,484 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2020-10-15 02:50:46,517 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2020-10-15 02:50:47,245 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 02:51:05,451 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2020-10-15 02:51:05,926 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:51:06,306 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:51:07,161 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:51:07,853 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:51:08,917 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:51:09,607 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:51:10,904 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:51:11,541 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:51:13,022 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 02:51:13,412 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 02:51:15,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:51:15,545 INFO L93 Difference]: Finished difference Result 68158 states and 115243 transitions. [2020-10-15 02:51:15,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:51:15,551 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 257 [2020-10-15 02:51:15,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:51:15,713 INFO L225 Difference]: With dead ends: 68158 [2020-10-15 02:51:15,713 INFO L226 Difference]: Without dead ends: 47417 [2020-10-15 02:51:15,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2020-10-15 02:51:15,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47417 states.